				 2/14/2011
				 ---------
[bash-4.2 released]

				   2/15
				   ----
lib/glob/gmisc.c
	- fix wmatchlen and umatchlen to avoid going past the end of the
	  string on an incomplete bracket expression that ends with a
	  NUL.  Partial fix for bug reported by Clark Wang <dearvoid@gmail.com>

				   2/16
				   ----
subst.h
	- new string extract flag value: SX_WORD.  Used when calling
	  extract_dollar_brace_string to skip over the word in
	  ${param op word} from parameter_brace_expand

subst.c
	- change parameter_brace_expand to add SX_WORD to flags passed to
	  extract_dollar_brace_string
	- change parameter_brace_expand to use SX_POSIXEXP for all non-posix
	  word expansion operators that treat single quotes as special, not
	  just % and #
	- change extract_dollar_brace_string to initialize dolbrace_state to
	  DOLBRACE_WORD if SX_WORD flag supplied and we shouldn't use
	  DOLBRACE_QUOTE.  Fixes bug reported by Juergen Daubert <jue@jue.li>

doc/{bash.1,bashref.texi}
	- document the exact expansions here strings undergo

				   2/17
				   ----
lib/readline/vi_mode.c
	- make sure that `dd', `cc', and `yy' call vidomove_dispatch from
	  rl_domove_read_callback.  Fixes bug reported by Clark Wang
	  <dearvoid@gmail.com>

lib/readline/callback.c
	- make sure _rl_internal_char_cleanup is called after the
	  vi-motion callbacks (rl_vi_domove_callback) in rl_callback_read_char.
	  Companion to above fix

doc/{bash.1,bashref.texi}
	- make sure that the text describing the rhs of the == and =~
	  operators to [[ states that only the quoted portion of the pattern
	  is matched as a string

				   2/18
				   ----
lib/glob/gmisc.c
	- better fix for umatchlen/wmatchlen: keep track of the number of
	  characters in a bracket expression as the value to increase
	  matchlen by if the bracket expression is not well-formed.  Fixes
	  bug reported by Clark Wang <dearvoid@gmail.com>

subst.c
	- change expand_string_for_rhs so that it sets the W_NOSPLIT2 flag
	  in the word flags.  We will not perform word splitting or quote
	  removal on the result, so we do not want to add quoted nulls if
	  we see "" or ''.  Fixes bug reported by Mike Frysinger
	  <vapier@gentoo.org>

				   2/19
				   ----
variables.c
	- new function, int chkexport(name), checks whether variable NAME is
	  exported and remakes the export environment if necessary.  Returns
	  1 if NAME is exported and 0 if not
	- call chkexport(name) to get tzset to look at the right variable in
	  the environment when modifying TZ in sv_tz.  Don't call tzset if
	  chkexport doesn't indicate that the variable is exported

variables.h
	- new extern declaration for chkexport


{parse.y,builtins/printf.def}
	- call sv_tz before calling localtime() when formatting time strings
	  in prompt strings or using printf.  Fixes bug reported by
	  Dennis Williamson <dennistwilliamson@gmail.com>

execute_cmd.c
	- modify fix of 2/9 to add casts when those variables are passed to
	  functions; some compilers throw errors instead of warnings.  Report
	  and fix from Joachim Schmitz <jojo@schmitz-digital.de>

support/shobj-conf
	- add a stanza for nsk on the Tandem from Joachim Schmitz
	  <jojo@schmitz-digital.de>

{shell,lib/readline/shell}.c
	- Tandem systems should use getpwnam (getlogin()); for some reason
	  they don't do well with using getuid().  Fix from Joachim Schmitz
	  <jojo@schmitz-digital.de>

				    3/1
				    ---
variables.c
	- make sure that the return value from find_variable is non-null
	  before trying to use it in chkexport.  Fixes bug reported by
	  Evangelos Foutras <foutrelis@gmail.com>

				    3/3
				    ---
parse.y
	- when adding $$ to the current token buffer in read_token_word(),
	  don't xmalloc a buffer for two characters and then strcpy it, just
	  copy the characters directly into the token buffer.  Fix from
	  Michael Whitten <mfwitten@gmail.com>

execute_cmd.c
	- fix expand_word_unsplit to add the W_NOSPLIT2 flag to the word to
	  be expanded, so "" doesn't add CTLNUL.  Similar to fix of 2/18 to
	  expand_string_for_rhs.  Fixes bug reported by Nathanael D. Noblet
	  <nathanael@gnat.ca> and Matthias Klose <doko@debian.org>

parse.y
	- fix extended_glob case of read_token_word to allocate an extra
	  space in the buffer for the next character read after the extended
	  glob specification if it's a CTLESC or CTLNUL.  Report and fix from
	  Michael Witten <mfwitten@gmail.com>
	- fix shell expansions case of read_token_word to allocate an extra
	  space in the buffer for the next character read after the shell
	  expansion if it's a CTLESC or CTLNUL.  Report and fix from
	  Michael Witten <mfwitten@gmail.com>
	- TENTATIVE: fix read_token_word to reduce the amount of buffer space
	  required to hold the translated and double-quoted value of $"..."
	  strings.  Report and fix from Michael Witten <mfwitten@gmail.com>
	- change code around got_character and got_escaped_character labels to
	  make sure that we call RESIZE_MALLOCED_BUFFER before adding the
	  CTLESC before a CTLESC or CTLNUL, and before adding the character if
	  we're not adding a CTLESC.  Report and fix from
	  Michael Witten <mfwitten@gmail.com>

subst.c
	- new param flags value, PF_ASSIGNRHS, mirrors W_ASSIGNRHS, noting that
	  parameter expansion is on rhs of assignment statement.  That inhibits
	  word splitting
	- change param_expand to call string_list_dollar_at with quoted == 1
	  if PF_ASSIGNRHS is set, so it will quote IFS characters in the
	  positional parameter before separating them with the first char of
	  $IFS.  This keeps the rhs from being split inappropriately.  Fixes
	  bug reported by Andres Perera <andres.p@zoho.com>

				    3/4
				    ---
lib/readline/bind.c
	- add a missing free of `names' in rl_function_dumper.  Bug report
	  and fix from Michael Snyder <msnyder@vmware.com>

				    3/5
				    ---
lib/readline/rltty.c
	- change rl_deprep_terminal so it uses fileno (stdin) for the tty fd
	  if rl_instream is not set, like rl_prep_terminal

				    3/6
				    ---
lib/readline/display.c
	- fix rl_message to use a dynamically-allocated buffer instead of a
	  fixed-size buffer of 128 chars for the `local message prompt'.  Bug
	  report and fix from Micah Cowan <micah@cowan.name>

				    3/7
				    ---
jobs.c
	- add sentinel to wait_sigint_handler so it only sets wait_sigint_received
	  if waiting_for_child is non-zero; otherwise, it restores the old
	  SIGINT handler and sends itself the SIGINT
	- set waiting_for_child around the calls to waitchld that use it to
	  synchronously wait for a process
	- change logic that decides whether or not the child process blocked
	  or handled SIGINT based on whether or not waitpid returns -1/EINTR
	  and the shell receives a SIGINT and the child does not exit.  If
	  the child later exits due to SIGINT, cancel the assumoption that it
	  was handled
	- instead of testing whether or not the child exited due to SIGINT
	  when deciding whether the shell should act on a SIGINT it received
	  while waiting, test whether or not we think the child caught
	  SIGINT.  If it did, we let it go (unless the shell has it trapped);
	  if it did not catch it, the shell acts on the SIGINT.  Fix from
	  Linus Torvalds <torvalds@linux-foundation.org>, bug report originally
	  from Oleg Nesterov <oleg@redhat.com>

				    3/8
				    ---
shell.c
	- initialize no_line_editing to 1 if READLINE is not defined -- we
	  can't have line editing without readline

				   3/12
				   ----
lib/readline/signals.c
	- add SIGHUP to the set of signals readline handles

lib/readline/doc/rltech.texi
	- document that SIGHUP is now part of the set of signals readline
	  handles

lib/readline/input.c
	- if _rl_caught_signal indicates that read() was interrupted by a
	  SIGHUP or SIGTERM, return READERR or EOF as appropriate
	- call rl_event_hook, if it's set, if call to read in rl_getc
	  returns -1/EINTR.  If rl_event_hook doesn't do anything, this
	  continues the loop as before.  This handles the other fatal
	  signals

execute_cmd.c
	- add a couple of QUIT; calls to execute_disk_command and
	  execute_simple_command to improve responsiveness to interrupts
	  and fatal signals

input.c
	- rearrange getc_with_restart so that the return values from read()
	  are handled right

parse.y
	- don't need to set terminate_immediately in yy_stream_get, since
	  getc_with_restart checks for terminating signals itself
	- since readline returns READERR on SIGHUP or SIGTERM, don't need
	  to set terminate_immediately.  Still doesn't handle other
	  signals well -- will have to check that some more

bashline.c
	- new function, bash_event_hook, for rl_event_hook.  Just checks for
	  terminating signals and acts on them using CHECK_TERMSIG.
	- set rl_event_hook to bash_event_hook

builtins/read.def
	- take out setting terminate_immediately; add calls to CHECK_TERMSIG
	  after read calls

doc/{bash.1,bashref.texi}
	- move the text describing the effect of negative subscripts used to
	  reference indexed array elements to the paragraphs describing
	  ${parameter[subscript]}, since that's where they are implemented.
	  Pointed out by Christopher F. A. Johnson <cfajohnson@gmail.com>

arrayfunc.[ch],subst.c
	- array_expand_index now takes a new first argument: a SHELL_VAR *
	  of the array variable being subscripted.  Can be used later to fully
	  implement negative subscripts

				   3/14
				   ----
lib/glob/glob.c
	- fix mbskipname to not turn the directory entry name into a wide char
	  string if the conversion of the pattern to a wide char string fails
	- fix mbskipname to call skipname if either the pattern or the filename
	  can't be converted into a wide-char string

lib/glob/xmbsrtowcs.c
	- fix xdupmbstowcs2 to handle return value of 0 from mbsnrtowcs and
	  short-circuit with failure in that case.  Fixes bug reported by
	  Roman Rakus <rrakus@redhat.com>

				   3/15
				   ----
bashline.c
	- new variable, bash_filename_quote_characters to store the value
	  assigned to rl_filename_quote_characters so it can be restored
	  if changed.
	- change bashline_reset and attempt_shell_completion to restore
	  rl_filename_quote_characters if not set to default

				   3/22
				   ----
lib/glob/glob.c
	- wdequote_pathname falls back to udequote_pathname if xdupmbstowcs
	  fails to convert the pathname to a wide-character string

lib/glob/xmbsrtowcs.c
	- xdupmbstowcs2: change to fix problem with leading '\\' (results in
	  nms == 0, which causes it to short-circuit with failure right
	  away).  Fixes bug pointed out by Werner Fink <werner@suse.de>
	- xdupmbstowcs2: compensate for mbsnrtowcs returning 0 by taking the
	  next single-byte character and going on
	- xdupmbstowcs2: change memory allocation to increase by WSBUF_INC
	  bytes; try to avoid calls to realloc (even if they don't actually
	  result in more memory being allocated)

				   3/24
				   ----
doc/{bash.1,bashref.texi}
	- slightly modify BASH_SUBSHELL description based on complaint from
	  Sam Liddicott <sam@liddicott.com>

				   3/25
				   ----
trap.c
	- change free_trap_strings to not call free_trap_string for signals
	  that are being ignored, like reset_or_restore_signal_handlers.
	  Fixes bug reported by Satoshi Takahashi <blue3waters@gmail.com>

				   3/26
				   ----
lib/readline/rltypedefs.h
	- remove old Function/VFunction/CPFunction/CPPFunction typedefs as
	  suggested by Tom Tromey <tromey@redhat.com>

lib/readline/rlstdc.h
	- move defines for USE_VARARGS/PREFER_STDARG/PREFER_VARARGS from
	  config.h.in to here because declaration of rl_message in
	  readline.h uses the defines.  This makes it hard for another packages
	  to use after the header files are installed, since config.h is not
	  one of the installed files.  Suggested by Tom Tromey
	  <tromey@redhat.com>

				   3/27
				   ----
print_cmd.c
	- change indirection_string from a static buffer to a dynamic one
	  managed by indirection_level_string(), so we don't end up truncating
	  PS4.  Suggested by Dennis Williamson <dennistwilliamson@gmail.com>

lib/readline/shell.c
	- change sh_set_lines_and_columns to use static buffers instead of
	  allocating the buffers to pass to setenv/putenv

lib/readline/terminal.c
	- change _rl_get_screen_size to not call sh_set_lines_and_columns if
	  ignore_env == 0
	- _rl_sigwinch_resize_terminal: new function to just retrieve terminal
	  size, ignoring environment

lib/readline/rlprivate.h
	- new external declaration for _rl_sigwinch_resize_terminal() (currently
	  unused)

lib/readline/signals.c
	- rl_sigwinch_handler: set _rl_caught_signal to SIGWINCH
	- rl_sigwinch_handler: don't immediately call rl_resize_terminal; just
	  leave _rl_caught_signal set for RL_CHECK_SIGNALS to handle
	- _rl_signal_handler: call rl_resize_terminal if sig == SIGWINCH.
	  Should fix hang when sending multiple repeated SIGWINCH reported by
	  Henning Bekel <h.bekel@googlemail.com>

				   3/29
				   ----
lib/sh/snprintf.c
	- include math.h for any defines for isinf/isnan
	- use code from gnulib documentation to implement isinf/isnan if they
	  are not defined

configure.in
	- don't check for isinf or isnan; c99 says they're macros anyway

config.h.in
	- remove defines for ISINF_IN_LIBC and ISNAN_IN_LIBC, no longer used
	  by snprintf.c

				    4/2
				    ---
braces.c
	- brace_gobbler: fix to understand double-quoted command substitution,
	  since the shell understands unquoted comsubs.  Fixes bug reported
	  by Michael Whitten <mfwitten@gmail.com>

lib/readline/display.c
	- include <pc.h> on MDOS
	- get and set screen size using DJGPP-specific calls on MSDOS
	- move cursor up clear screen using DJGPP-specific calls
	- don't call tputs on DJGPP; there is no good terminfo support

lib/readline/terminal.c
	- include <pc.h> on MDOS
	- get and set screen size using DJGPP-specific calls on MSDOS
	- use DJGPP-specific initialization on MSDOS, zeroing all the
	  _rl_term_* variables
	- don't call tputs on DJGPP; there is no good terminfo support
	  DJGPP support from Eli Zaretskii  <eliz@gnu.org>

				    4/6
				    ---

config-top.h
	- change DEFAULT_PATH_VALUE to something more useful and modern

				    4/8
				    ---
tests/printf2.sub
	- make sure LC_ALL and LC_CTYPE are set so LANG assignment takes effect.
	  Reported by Cedric Arbogast <arbogast.cedric@gmail.com>

				   4/11
				   ----
include/chartypes.h
	- fix a couple of dicey defines (though ones that don't cause any
	  compiler warnings) in IN_CTYPE_DOMAIN

doc/{bashref.texi,bash.1}
	- add note referring to duplicating file descriptors in sections
	  describing redirecting stdout and stderr and appending to stdout
	  and stderr.  Suggested by Matthew Dinger <mdinger.bugzilla@gmail.com>

pcomplete.c
	- it_init_helptopics: new function to support completing on help topics,
	  not just builtins
	- it_helptopics: new programmable completion list of help topics
	- build list of helptopic completions in gen_action_completions on
	  demand

pcomplete.h
	- new extern declaration for it_helptopics

builtins/complete.def
	- the `helptopic' action now maps to CA_HELPTOPIC intead of CA_BUILTIN,
	  since there are more help topics than just builtins.  Suggested by
	  Clark Wang <dearvoid@gmail.com>

				   4/12
				   ----
print_cmd.c
	- fix print_arith_for_command to add a call to PRINT_DEFERRED_HEREDOCS
	  before ending the body of the command, so heredocs get attached to
	  the right command instead of to the loop.  From gentoo bug 363371
	  http://bugs.gentoo.org/show_bug.cgi?id=363371

execute_cmd.c
	- change coproc_pidchk to unset the appropriate shell variables when
	  the (currently single) known coproc pid terminates
	- cleanup and new functions to fully support multiple coprocesses when
	  and if I decide to go there

				   4/13
				   ----
print_cmd.c
	- fix print_group_command to add a call to PRINT_DEFERRED_HEREDOCS
	  after call to make_command_string_internal before printing closing
	  `}'
	- fix make_command_string_internal to add a call to
	  PRINT_DEFERRED_HEREDOCS after recursive call to
	  make_command_string_internal in case cm_subshell before printing
	  closing `)'

				   4/14
				   ----
print_cmd.c
	- change overlapping strcpy in named_function_string to memmove

sig.h
	- UNBLOCK_SIGNAL: convenience define, same as UNBLOCK_CHILD, just
	  restores an old signal mask

trap.c
	- set_signal: instead of setting the signal handler to SIG_IGN while
	  installing the new trap handler, block the signal and unblock it
	  after the new handler is installed.  Fixes bug reported by Roman
	  Rakus <rrakus@redhat.com>

				   4/15
				   ----
doc/{bash.1,bashref.texi}
	- make it clear that enabling monitor mode means that all jobs run in
	  separate process groups

				   4/18
				   ----
builtins/fc.def
	- update fix of 4/15/2010 to not take saved_command_line_count into
	  account when stepping down the history list to make sure that
	  last_hist indexes something that is valid.  Fixes bug reported by
	  <piuma@piumalab.org>

				   4/19
				   ----
builtins/fc.def
	- fc_gethnum: make sure the calculation to decide the last history
	  entry is exactly the same as fc_builtin.  Fixes bug uncovered by
	  fix of 4/18 to stop seg fault

				   4/22
				   ----
lib/readline/terminal.c
	- change _rl_enable_meta_key to set a flag indicating that it sent the
	  enable-meta sequence
	- _rl_disable_meta_key: new function to turn off meta mode after we
	  turned it on with _rl_enable_meta_key

lib/readline/rlprivate.h
	- extern declaration for _rl_disable_meta_key

configure.in
	- if not cross-compiling, set CFLAGS_FOR_BUILD from any CFLAGS inherited
	  from the environment.  Fixes HP/UX build problem reported by
	  "Daniel Richard G." <skunk@iSKUNK.ORG>

				   4/26
				   ----
config-top.h
	- define MULTIPLE_COPROCS to 0 so the code is still disabled but easy
	  to enable via configure option or editing this file

				   4/29
				   ----
lib/sh/eaccess.c
	- freebsd provides faccessat, with the same misfeature as their eaccess
	  and access implementations (X_OK returns true for uid==0 regardless
	  of the actual file permissions), so reorganize code to check the
	  file permissions as with eaccess.  Report and fix from Johan Hattne
	  <johan.hattne@utsouthwestern.edu>

				    5/2
				    ---
doc/{bash.1,bashref.texi}
	- add forward reference to `Pattern Matching' from `Pathname
	  Expansion', suggested by Greg Wooledge <wooledg@eeg.ccf.org>

				    5/5
				    ---
pcomplib.c
	- the bash_completion project now distributes over 200 completions
	  for various programs, with no end in sight, so increase the value
	  of COMPLETE_HASH_BUCKETS from 32 to 128

pathexp.c
	- quote_string_for_globbing: make sure CTLESC quoting CTLESC is
	  translated into \<CTLESC> even if the flags include QGLOB_REGEXP.
	  We don't want to process the second CTLESC as a quote character.
	  Fixes bug reported by Shawn Bohrer <sbohrer@rgmadvisors.com>

				    5/6
				    ---
builtins/printf.def
	- change PRETURN to not call fflush if ferror(stdout) is true
	- if a call to one of the stdio functions or printstr leaves
	  ferror(stdout) true, and PRETURN is going to be called, let PRETURN
	  print the error message rather than doubling up the messages.  Fixes
	  problem reported by Roman Rakus <rrakus@redhat.com>

				    5/9
				    ---
doc/{bash.1,bashref.texi}
	- add note to the effect that lists inside compound command can be
	  terminated by newlines as well as semicolons.  Suggested by
	  Roman Byshko <rbyshko@gmail.com>

				   5/10
				   ----
subst.c
	- remove_quoted_nulls: fix problem that caused it to skip over the
	  character after a CTLNUL, which had the effect of skipping every
	  other of a series of CTLNULs.  Fixes bug reported by
	  Marten Wikstrom <marten.wikstrom@keystream.se>

				   5/11
				   ----
subst.c
	- extract_process_subst: add SX_COMMAND flag to call to
	  extract_delimited_string, since we're expanding the same sort of
	  command as command substitution.  Fixes bug reported in Ubuntu
	  bug 779848

				   5/12
				   ----
configure.in
	- set the prefer_shared and prefer_static variables appropriately
	  depending on the value of $opt_static_link

aclocal.m4
	- AC_LIB_LINKFLAGS_BODY: change to not prefer shared versions of the
	  libraries it's searching for if the prefer_shared variable is "no".
	  Fixes problem reported by Cedric Arbogast <arbogast.cedric@gmail.com>

				   5/13
				   ----
lib/readline/readline.c
	- _rl_internal_teardown: add call to _rl_disable_meta_key to make the
	  meta key active only for the duration of the call to readline()
	- _rl_internal_setup: move call to _rl_enable_meta_key here from
	  readline_initialize_everything so the meta key is active only for
	  the duration of the call to readline().  Suggestion from Miroslav
	  Lichvar <mlichvar@redhat.com>

builtins/help.def
	- help_builtin: change strncmp to strcmp so that `help read' no longer
	  matches `readonly'.  Suggested by Clark Wang <dearvoid@gmail.com>

config.h.in
	- add define for GLIBC21, checked using jm_GLIBC21 as part of the tests
	  for libintl

lib/malloc/malloc.c
	- internal_free: don't use the cached value of memtop when deciding
	  whether or not to adjust the break and give memory back to the kernel
	  when using the GNU C library, since glibc uses sbrk for its own
	  internal purposes.  From Debian bug 614815, reported by Samuel
	  Thibault <samuel.thibault@gnu.org>

aclocal.m4
	- BASH_STRUCT_WEXITSTATUS_OFFSET: change AC_RUN_IFELSE to AC_TRY_RUN
	  to avoid warning about not using AC_LANG_SOURCE

				   5/14
				   ----
bashline.[ch]
	- two new functions, bashline_set_event_hook and bashline_reset_event_hook,
	  to set rl_event_hook to bash_event_hook and back to NULL, respectively
	- don't set rl_event_hook unconditionally

sig.c
	- termsig_sighandler: if the shell is currently interactive and
	  readline is active, call bashline_set_event_hook to cause
	  termsig_handler to be called via bash_event_hook when the shell
	  returns from the signal handler

				   5/15
				   ----
lib/readline/display.c
	- _rl_col_width: Mac OS X has a bug in wcwidth: it does not return 0
	  for UTF-8 combining characters.  Added workaround dependent on
	  MACOSX.  Fixes problem pointed out by Thomas De Contes
	  <d.l.tDecontes@free.fr>

				   5/16
				   ----
lib/readline/rlmbutil.h
	- WCWIDTH: wrapper for wcwidth that returns 0 for Unicode combining
	  characters on systems where wcwidth is broken (e.g., Mac OS X).

lib/readline/{complete,display,mbutil}.c
	- use WCWIDTH instead of wcwidth

				   5/17
				   ----
lib/readline/display.c
	- update_line: after computing ofd and nfd, see whether the next
	  character in ofd is a zero-width combining character.  If it is,
	  back ofd and nfd up one, so the base characters no longer compare
	  as equivalent.  Fixes problem reported by Keith Winstein
	  <keithw@mit.edu>

lib/readline/nls.c
	- _rl_utf8locale: new flag variable, set to non-zero if the current
	  locale is UTF-8
	- utf8locale(): new function, returns 1 if the passed lspec (or the
	  current locale) indicates that the locale is UTF-8.  Called from
	  _rl_init_eightbit

lib/readline/rlprivate.h
	- extern declaration for _rl_utf8locale

locale.c
	- locale_utf8locale: new flag variable, set to non-zero if the current
	  locale is UTF-8 (currently unused)
	- locale_isutf8(): new function, returns 1 if the passed lspec (or the
	  current locale) indicates that the locale is UTF-8.  Should be called
	  whenever the locale or LC_CTYPE value is modified

aclocal.m4
	- BASH_WCWIDTH_BROKEN: new test for whether or not wcwidth returns
	  zero-width characters like unicode combining characters as having
	  display length 1; define WCWIDTH_BROKEN in this case

config.h.in
	- WCWIDTH_BROKEN: new define

lib/readline/rlmbutil.h
	- change WCWIDTH macro to use _rl_utf8locale and the full range of
	  Unicode combining characters (U+0300-U+036F)

				   5/19
				   ----
lib/readline/rlprivate.h
	- _rl_search_context: new member, prevc, will hold character read
	  prior to lastc

lib/readline/isearch.c
	- _rl_isearch_dispatch: if the character causes us to index into
	  another keymap, save that character in cxt->prevc
	- _rl_isearch_dispatch: if we index into another keymap, but don't
	  find a function that's special to i-search, and the character that
	  caused us to index into that keymap would have terminated the
	  search, push back cxt->prevc and cxt->lastc to make it appear as
	  if `prevc' terminated the search, and execute lastc as a command.
	  We have to push prevc back so we index into the same keymap before
	  we read lastc.  Fixes bug report from Davor Cubranic
	  <cubranic@stat.ubc.ca>

				   5/20
				   ----
expr.c
	- expr_bind_variable: pay attention to the return value from
	  bind_variable and check whether or not we should error out due to
	  a readonly or noassign variable.  Fixes bug reported by Eric
	  Blake <eblake@redhat.com>

				   5/26
				   ----

lib/readline/search.c
	- include histlib.h for ANCHORED_SEARCH defines
	- rl_history_search_flags: new variable, holds ANCHORED_SEARCH flag for
	  the duration of a history search
	- rl_history_search_reinit: takes a new flags variable, defines whether
	  or not the search is anchored; assigned to rl_history_search_flags
	- rl_history_serarch_reinit: if ANCHORED_SEARCH flag passed, add ^ to
	  beginning of search string; otherwise search string is unmodified
	- rl_history_search_internal: set rl_point appropriately based on
	  whether or not rl_history_search_flags includes ANCHORED_SEARCH
	- rl_history_substr_search_forward: new function, for non-anchored
	  substring search forward through history for string of characters
	  preceding rl_point
	- rl_history_substr_search_backward: new function, for non-anchored
	  substring search backward through history for string of characters
	  preceding rl_point.  Original code from Niraj Kulkarni
	  <kulkarniniraj14@gmail.com>

lib/readline/readline.h
	- extern declarations for rl_history_substr_search_{for,back}ward

lib/readline/funmap.c
	- history-substring-search-forward: new bindable command, invokes
	  rl_history_substr_search_forward
	- history-substring-search-backward: new bindable command, invokes
	  rl_history_substr_search_backward

lib/readline/doc/{rluser.texi,readline.3}
	- document history-substring-search-forward and
	  history-substring-search-backward

				   5/27
				   ----
{nojobs,jobs}.c
	- add support for DONT_REPORT_SIGTERM so that the shell doesn't print
	  a message when a job exits due to SIGTERM since that's the default
	  signal sent by the kill builtin.  Suggested by Marc Herbert
	  <mark.herbert@gmail.com>

config-top.h
	- DONT_REPORT_SIGTERM: new user-modifiable setting.  Commented out
	  by default

				   5/28
				   ----
lib/readline/bind.c
	- _rl_skip_to_delim: skip to a closing double quote or other delimiter,
	  allowing backslash to quote any character, including the delimiter
	- rl_parse_and_bind: call _rl_skip_to_delim instead of using inline
	  code
	- rl_parse_and_bind: allow quoted strings as the values of string
	  variables.  Variable values without double quotes have trailing
	  whitespace removed (which still allows embedded whitespace, for
	  better or worse).  Fixes problem with string variables not matching
	  in `set' command if values happen to have trailing spaces or tabs
	  (debian bash bug #602762), but introduces slight incompatibility.

				   5/29
				   ----
doc/{bash.1,bashref.texi}
	- clarify unset description to specify that without options, a
	  variable, then a shell function if there is no variable by that
	  name, is unset.  Fixes discrepancy reported by Mu Qiao
	  <qiaomuf@gentoo.org>

				   6/4
				   ----
doc/{bash.1,bashref.texi}
	- clarify description of LINES and COLUMNS (and checkwinsize shopt
	  option) to make it clear that only interactive shells set a
	  handler for SIGWINCH and update LINES and COLUMNS.  Original
	  report submitted by Jonathan Nieder <jrnieder@gmail.com>

arrayfunc.c
	- expand_compound_array_assignment: defer expansion of words between
	  parens when performing compound assignmnt to an associative array
	  variable
	- assign_compound_array_list: perform the same expansions when doing
	  a compound array assignment to an associative array variable as
	  when doing a straight array index assignment.  The idea is that
	  	foo=( [ind1]=bar [ind2]=quux)
	  is the same as
		foo[ind1]=bar ; foo[ind2]=quux

	  This fixes problems with double-expansion and quote removal being
	  performed on the array indices

				   6/13
				   ----
doc/{bash.1,bashref.texi}
	- Add a little text to make it clear that the locale determines how
	  range expressions in glob patterns are handled.


				   6/21
				   ----
builtins/read.def
	- display a message and return error status if -a is used with an
	  existing associative array.  Fixes bug reported by Curtis Doty
	  <curtis@greenkey.net>

				   6/24
				   ----
{jobs,nojobs}.c
	- non-interactive shells now react to the setting of checkwinsize
	  and set LINES and COLUMNS after a foreground job exits.  From a
	  suggestion by Leslie Rhorer <lrhorer@satx.rr.com>

doc/{bash.1,bashref.texi}
	- checkwinsize: remove language saying that only interactive shells
	  check the window size after each command

lib/readline/histfile.c
	- history_backupfile: new file, creates a backup history file name
	  given a filename (appending `-')
	- history_do_write: when overwriting the history file, back it up
	  before writing.  Restore backup file on a write error.  Suggested
	  by chkno@chkno.net

bashline.c
	- find_cmd_name: two new arguments, return the start and end of the
	  actual text string used to find the command name, without taking
	  whitespace into account
	- attempt_shell_completion: small changes to make sure that completion
	  attempted at the beginning of a non-empty line does not find a
	  programmable completion, even if the command name starts at point
	- attempt_shell_completion: small change to make sure that completion
	  does not find a progcomp when in whitespace before the command
	  name
	- attempt_shell_completion: small change to make sure that completion
	  does not find a progcomp when point is at the first character of a
	  command name, even when there is leading whitespace (similar to
	  above).  Fixes problems noted by Ville Skytta <ville.skytta@iki.fi>

subst.c
	- brace_expand_word_list: since the individual strings in the strvec
	  returned by brace_expand are already allocated, don't copy them to
	  newly-allocated memory when building the WORD_LIST, just use them
	  intact

locale.c
	- locale_mb_cur_max: cache value of MB_CUR_MAX when we set or change
	  the locale to avoid a function call every time we need to read it

shell.h
	- new struct to save shell_input_line and associated variables:
	  shell_input_line_state_t
	- add members of sh_parser_state_t to save and restore token and the
	  size of the token buffer

parse.y
	- {save,restore}_input_line_state: new functions to save and restore
	  shell_input_line and associated variables
	- {save,restore}_parser_state: add code to save and restore the token
	  and token buffer size
	- xparse_dolparen: call save_ and restore_input_line_state to avoid
	  problems with overwriting shell_input_line when we recursively
	  call the parser to parse a command substitution.  Fixes bug
	  reported by Rui Santos <rsantos@grupopie.com>

include/shmbutil.h
	- use locale_mb_cur_max instead of MB_CUR_MAX in ADVANCE_CHAR and
	  similar macros

lib/glob/smatch.c
	- rangecmp,rangecmp_wc: change to take an additional argument, which
	  forces the use of strcoll/wscoll when non-zero.  If it's 0, a new
	  variable `glob_asciirange' controls whether or not we use strcoll/
	  wscoll.  If glob_asciirange is non-zero, we use straight
	  C-locale-like ordering. Suggested by  Aharon Robbins
	  <arnold@skeeve.com>

				   6/30
				   ----
execute_cmd.c
	- execute_pipeline: make sure the lastpipe code is protected by
	  #ifdef JOB_CONTROL.  Fixes problem reported by Thomas Cort
	  <tcort@minix3.org>

				    7/2
				    ---
lib/readline/complete.c
	- EXPERIMENTAL: remove setting of _rl_interrupt_immediately around
	  completion functions that touch the file system.  Idea from Jan
	  Kratochvil <jan.ktratochvil@redhat.com> and the GDB development
	  team

lib/readline/signals.c
	- rl_signal_handler: if we're in callback mode, don't interrupt
	  immediately on a SIGWINCH

				    7/3
				    ---
bashline.c
	- set_directory_hook: and its siblings are a new set of functions to
	  set, save, and restore the appropriate directory completion hook
	- change callers to use {set,save,restore}_directory_hook instead of
	  manipulating rl_directory_rewrite_hook directly
	- dircomplete_expand: new variable, defaults to 0, if non-zero causes
	  directory names to be word-expanded during word and filename
	  completion
	- change {set,save,restore}_directory_hook to look at dircomplete_expand
	  and change rl_directory_completion_hook or rl_directory_rewrite_hook
	  appropriately

bashline.h
	- extern declaration for set_directory_hook so shopt code can use it

				    7/6
				    ---
builtins/shopt.def
	- globasciiranges: new settable shopt option, makes glob ranges act
	  as if in the C locale (so b no longer comes between A and B).
	  Suggested by Aharon Robbins <arnold@skeeve.com>

				    7/7
				    ---
doc/{bash.1,bashref.texi}
	- document new `globasciiranges' shopt option

				    7/8
				    ---
builtins/shopt.def
	- direxpand: new settable option, makes filename completion expand
	  variables in directory names like bash-4.1 did.
	- shopt_set_complete_direxpand: new function, does the work for the
	  above by calling set_directory_hook

doc/{bash.1,bashref.texi}
	- document new `direxpand' shopt option

				   7/15
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: when adding character to search string, use
	  cxt->lastc (which we use in the switch statement) instead of c,
	  since lastc can be modified earlier in the function

				   7/18
				   ----
lib/readline/rlprivate.h
	- _rl_search_context: add another member to save previous value of
	  (multibyte) lastc: pmb is to mb as prevc is to lastc

lib/readline/isearch.c:
	- _rl_isearch_dispatch: if a key sequence indexes into a new keymap,
	  but doesn't find any bound function (k[ind].function == 0) or is
	  bound to self-insert (k[ind].function == rl_insert), back up and
	  insert the previous character (the one that caused the index into a
	  new keymap) and arrange things so the current character is the next
	  one read, so both of them end up in the search string.  Fixes bug
	  reported by Clark Wang <dearvoid@gmail.com>
	- _rl_isearch_dispatch: a couple of efficiency improvements when adding
	  characters to the isearch string

				   7/24
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: save and restore cxt->mb and cxt->pmb
	  appropriately when in a multibyte locale

doc/{bash.1,bashref.texi}
	- correct description of {x}>file (and other redirection operators
	  that allocate a file descriptor) to note the the fd range is
	  greater than or equal to 10.  Fixes problem reported by
	  Christian Ullrich 

lib/readline/signals.c
	- rl_signal_handler: don't interrupt immediately if in callback mode

lib/readline/callback.c
	- rl_callback_read_char: install signal handlers only when readline
	  has control in callback mode, so readline's signal handlers aren't
	  called when the application is active (e.g., between the calls to
	  rl_callback_handler_install and rl_callback_read_char).  If the
	  readline signal handlers only set a flag, which the application
	  doesn't know about, the signals will effectively be ignored until
	  the next time the application calls into the readline callback
	  interface.  Fixes problem of calling unsafe functions from signal
	  handlers when in callback mode reported by Jan Kratochvil
	  <jan.kratochvil@redhat.com>

execute_cmd.c
	- fix_assignment_words: when in Posix mode, the `command' builtin
	  doesn't change whether or not the command name it protects is an
	  assignment builtin.  One or more instances of `command'
	  preceding `export', for instance, doesn't make `export' treat its
	  assignment statement arguments differently.  Posix interpretation
	  #351

doc/{bash.1,bashref.texi}
	- document new Posix-mode behavior of `command' when preceding builtins
	  that take assignment statements as arguments

builtins/printf.def
	- printstr: if fieldwidth or precision are < 0 or > INT_MAX when
	  supplied explicitly (since we take care of the `-' separately),
	  clamp at INT_MAX like when using getint().  Fixes issue reported
	  by Ralph Coredroy <ralph@inputplus.co.uk>

				   7/25
				   ----
lib/readline/chardefs.h
	- isxdigit: don't define if compiling with c++; declared as a c++
	  template function.  Fixes bug reported by Miroslav Lichvar
	  <mlichvar@redhat.com>

builtins/printf.def
	- getint: if garglist == 0, return whatever getintmax returns (0).
	  Fixes bug reported  by Ralph Coredroy <ralph@inputplus.co.uk>

				   7/28
				   ----
doc/{bash.1,bashref.texi}
	- minor changes to the descriptions of the cd and pushd builtins

lib/sh/zread.c
	- zsyncfd: change variable holding return value from lseek to
	  off_t.  Bug report and fix from Gregory Margo <gmargo@pacbell.net>

				    8/1
				    ---
expr.c
	- don't check for division by 0 when in a context where no evaluation
	  is taking place.  Fixes bug reported by dnade.ext@orange-ftgroup.com

				    8/6
				    ---
execute_cmd.c
	- execute_command_internal: the parent branch of the subshell code
	  (where the child calls execute_in_subshell) should not close all
	  open FIFOs with unlink_fifo_list if it's part of a shell function
	  that's still executing.  Fixes bug reported by Maarten Billemont
	  <lhunath@lyndir.com>

				    8/9
				    ---
builtins/common.c
	- get_exitstat: return EX_BADUSAGE (2) on a non-numeric argument

builtins/return.def
	- return_builtin: just call get_exitstat to get the return status,
	  let it handle proper parsing and handling of arguments.  Fixes
	  issue most recently raised by Linda Walsh <bash@tlinx.org>.
	  Reverses change from 9/11/2008 (see above)

				   8/16
				   ----
doc/{bash.1,bashref.texi}
	- clean up `set -e' language to make it clearer that any failure of
	  a compound command will cause the shell to exit, not just subshells
	  and brace commands

				   8/17
				   ----
configure.in
	- make the various XXX_FOR_BUILD variables `precious' to autoconf to
	  avoid stale data
	- change how CC_FOR_BUILD is initialized when cross-compiling and not,
	  but do not change behavior
	- initialize CFLAGS_FOR_BUILD to -g when cross-compiling
	- initialize LIBS_FOR_BUILD to $(LIBS) when not cross-compiling, empty
	  when cross-compiling
	- create AUTO_CFLAGS variable to hold basic CFLAGS defaults; used when
	  CFLAGS not inherited from environment (like effect of old
	  auto_cflags variable)
	- substitute LIBS_FOR_BUILD into output Makefiles
	  [changes inspired by bug report from Nathan Phillip Brink
	  <ohnobinki@ohnopublishing.net> -- gentoo bug 378941]

builtins/Makefile.in	
	- substitute LIBS_FOR_BUILD from configure, not strictly initialized
	  to $(LIBS)

				   8/27
				   ----
doc/{bash.1,bashref.texi}
	- minor changes to the here string description to clarify the
	  expansions performed on the word

support/shobj-conf
	- handle compilation on Lion (Mac OS X 10.7/darwin11) with changes
	  to darwin stanzas.  Fixes readline bug reported by Vincent
	  Sheffer <vince.sheffer@apisphere.com>

lib/sh/strtrans.c
	- ansic_wshouldquote: check a string with multi-byte characters for
	  characters that needs to be backslash-octal escaped for $'...'
	- ansic_shouldquote: if is_basic fails for one character, let
	  ansic_wshouldquote examine the rest of the string and return what
	  it returns.  From a patch sent by Roman Rakus <rrakus@redhat.com>

				   8/30
				   ----
lib/sh/strtrans.c
	- ansic_quote: changes to quote (or not) multibyte characters.  New
	  code converts them to wide characters and uses iswprint to check
	  valid wide chars.  From a patch sent by Roman Rakus
	  <rrakus@redhat.com>

				    9/7
				    ---
lib/sh/shquote.c
	- sh_backslash_quote: change to be table-driven so we can use a
	  different table if we want to
	- sh_backslash_quote: takes a second char table[256] argument;

externs.h
	- sh_backslash_quote: add second argument to function prototype

bashline.c,braces.c,parse.y,builtins/printf.def
	- change callers of sh_backslash_quote to add second argument

bashline.c
	- filename_bstab: table of characters to pass to sh_backslash_quote;
	  characters with value 1 will be backslash-quoted
	- set_filename_bstab: turn on characters in filename backslash-quote
	  table according to passed string argument
	- call set_filename_bstab every time rl_filename_quote_characters is
	  assigned a value
	- bash_quote_filename: call sh_backslash_quote with filename_bstab
	  as second argument.  This allows other characters in filenames to
	  be quoted without quoting, for instance, a dollar sign in a shell
	  variable reference

				    9/8
				    ---
bashline.c
	- complete_fullquote: new variable, controls table passed to
	  sh_backslash_quote.  If non-zero (the default), the standard set
	  of shell metacharacters -- as in bash versions up to and including
	  bash-4.2 -- gets backslash-quoted by the completion code.  If zero,
	  sh_backslash_quote gets the table with the characters in the
	  variable reference removed, which means they are removed from the
	  set of characters to be quoted in filenames

				   9/10
				   ----
bashline.c
	- bash_filename_stat_hook: new function, designed to expand variable
	  references in filenames before readline passes them to stat(2)
	  to determine whether or not they are a directory

				   9/15
				   ----
builtins/declare.def
	- if assign_array_element fails due to a bad (or empty) subscript, mark
	  it as an assignment error and don't attempt any further processing
	  of that declaration.  Fixes segfault bug reported by Diego Augusto
	  Molina <diegoaugustomolina@gmail.com>

				   9/19
				   ----
expr.c
	- exppower: replace the simple exponentiation algorithm with an
	  implementation of exponentiation by squaring.  Inspired by report
	  from Nicolas ARGYROU <nargy@yahoo.com>

bashline.c
	- bash_quote_filename: check for rtext being non-null before
	  dereferencing it
	- set_saved_history: operate_and_get_next assumes that the previous
	  line was added to the history, even when the history is stifled and
	  at the max number of entries.  If it wasn't, make sure the history
	  number is incremented properly.  Partial fix for bug reported by
	  gregrwm <backuppc-users@whitleymott.net>

doc/{bash.1,bashref.texi},lib/readline/doc/{hsuser,rluser}.texi
	- minor editorial changes inspired by suggestions from
	  Roger Zauner <rogerx.oss@gmail.com>

				   9/20
				   ----
lib/intl/localealias.c
	- read_alias_file: close resource leak (fp) when returning on error

				   9/22
				   ----
execute_command.c
	- execute_intern_function: implement Posix interpretation 383 by making
	  it an error to define a function with the same name as a special
	  builtin when in Posix mode.
	  http://austingroupbugs.net/view.php?id=383#c692

				   9/25
				   ----
doc/{bash.1,bashref.texi}
	- formatting and some content changes from Benno Schulenberg
	  <bensberg@justemail.net>
	- document new posix-mode behavior from interp 383 change of 9/22

				   9/30
				   ----
execute_cmd.c
	- shell_execve: add strerror to error message about executable file
	  that shell can't execute as a shell script.  From suggestion by
	  daysleeper <daysleeper@centrum.cz>

				   10/1
				   ----
bashhist.c
	- maybe_add_history: act as if literal_history is set when parser_state
	  includes PST_HEREDOC, so we save the bodies of here-documents just
	  as they were entered.  Fixes bug reported by Jonathan Wakely
	  <bugs@kayari.org>
	- bash_add_history: make sure that the second and subsequent lines of
	  a here document don't have extra newlines or other delimiting
	  chars added, since they have the trailing newline preserved, when
	  `lithist' is set and history_delimiting_chars isn't called

execute_cmd.c
	- execute_command_internal: avoid fd exhaustion caused by using
	  process substitution in loops inside shell functions by using
	  copy_fifo_list and close_new_fifos ().  Fixes debian bash bug
	  642504

lib/readline/complete.c
	- new variable, rl_filename_stat_hook, used by append_to_match.  If
	  filename completion is desired, and rl_filename_stat_hook points
	  to a function, call that function to expand the filename in an
	  application-specific way before calling stat.

bashline.c
	- bash_default_completion: if variable completion returns a single
	  match, use bash_filename_stat_hook and file_isdir to determine
	  whether or not the variable name expands to a directory.  If it
	  does, set the filename_append_character to `/'.  This is not
	  perfect, so we will see how it works out.  Adds functionality
	  requested by Peter Toft <pto@linuxbog.dk> and Patrick Pfeifer
	  <patrick@pfeifer.de>
	- rl_filename_stat_hook: assigned bash_filename_stat_hook, so things
	  like $HOME/Downloads (after completion) have a slash appended.
	  In general, this causes the stat hook to be called whenever
	  filename completion is appended.  Adds functionality requested by
	  Patrick Pfeifer <patrick@pfeifer.de>

lib/readline/readline.h
	- new extern declaration for rl_filename_stat_hook

lib/readline/doc/rltech.texi
	- rl_directory_rewrite_hook: now documented
	- rl_filename_stat_hook: document

pcomplete.c
	- gen_action_completions: in the CA_DIRECTORY case, turn off
	  rl_filename_completion_desired if it was off before we called
	  rl_filename_completion_function and we didn't get any matches.
	  Having it on causes readline to quote the matches as if they
	  were filenames.  Adds functionality requested by many,
	  including Clark Wang <dearvoid@gmail.com>

assoc.[ch]
	- assoc_replace: new function, takes the same arguments as
	  assoc_insert, but returns the old data instead of freeing it
	- assoc_insert: if the object returned by hash_insert doesn't have
	  the same value for its key as the key passed as an argument, we
	  are overwriting an existing value.  In this case, we can free the
	  key.  Fixes bug reported by David Parks <davidparks21@yahoo.com>

				   10/5
				   ----
print_cmd.c
	- indirection_level_string: small change to only re-enable `x'
	  option after calling decode_prompt_string if it was on before.  In
	  normal mode, it will be, but John Reiser <jreiser@bitwagon.com>
	  has a novel use for that code in conjunction with a pre-loaded
	  shared library that traces system call usage in shell scripts

				   10/10
				   -----
Makefile.in
	- Fix from Mike Frysinger <vapier@gentoo.org> to avoid trying to
	  build y.tab.c and y.tab.h with two separate runs of yacc if
	  parse.y changes.  Problem with parallel makes
	- Fix from Mike Frysinger <vapier@gentoo.org> to avoid subdirectory
	  builds each trying to make version.h (and all its dependencies)

lib/sh/Makefile.in
	- remove some dependencies on version.h where it doesn't make sense

variables.c
	- initialize_shell_variables: while reading the environment, a shell
	  running in posix mode now checks for SHELLOPTS being readonly (it
	  gets set early on in main()) before trying to assign to it.  It
	  saves an error message and the variable gets parsed as it should.
	  Fixes bug reported by Len Giambrone <Len.Giambrone@intersystems.com>

				   10/14
				   -----
doc/{bash.1,bashref.texi}
	- add to the "duplicating file descriptors" description that >&word
	  doesn't redirect stdout and stderr if word expands to `-'
	- add to the "appending standard output and standard error"
	  description a note that >&word, where word is a number or `-',
	  causes other redirection operators to apply for sh and Posix
	  compatibility reasons.  Suggested by Greg Wooledge
	  <wooledg@eeg.ccf.org>

				   10/15
				   -----
pcomplete.c
	- change pcomp_filename_completion_function to only run the filename
	  dequoting function in the cases (as best as it can figure) where
	  readline won't do it via rl_filename_completion_function.  Based
	  on reports from <lolilolicon@gmail.com>

				   10/19
				   -----
bashline.c
	- attempt_shell_completion: add call to set_directory_hook() to make
	  sure the rewrite functions are correct.  It's cheap and doesn't
	  hurt
	- command_word_completion_function: if completing a command name that
	  starts with `.' or `..', temporarily suppress the effects of the
	  `direxpand' option and restore the correct value after calling
	  rl_filename_completion_function.  If it's enabled, the directory
	  name will be rewritten and no longer match `./' or `../'.  Fixes
	  problem reported by Michael Kalisz <michael@kalisz.homelinux.net>

				   10/22
				   -----
builtins/history.def
	- push_history: make sure remember_on_history is enabled before we
	  try to delete the last history entry -- the `history -s' command
	  might not have been saved.  Fixes bug reported by
	  lester@vmw-les.eng.vmware.com

lib/readline/complete.c
	- rl_callback_read_char: add calls to a macro CALLBACK_READ_RETURN
	  instead of straight return; add same call at end of function.
	  Placeholder for future work in deinstalling signal handlers when
	  readline is not active

				   10/25
				   -----
expr.c
	- exp2: catch arithmetic overflow when val1 == INTMAX_MIN and val2 == -1
	  for DIV and MOD and avoid SIGFPE.  Bug report and pointer to fix
	  from Jaak Ristioja <jaak.ristioja@cyber.ee>
	- expassign: same changes for arithmetic overflow for DIV and MOD

				   10/28
				   -----
subst.c
	- parameter_brace_expand: allow pattern substitution when there is an
	  expansion of the form ${var/} as a no-op: replacing nothing with
	  nothing
	- parameter_brace_patsub: don't need to check for PATSUB being NULL;
	  it never is

flags.c
	- if STRICT_POSIX is defined, initialize history_expansion to 0, since
	  history expansion (and its treatment of ! within double quotes) is
	  not a conforming posix environment.  From austin-group issue 500

lib/readline/histexpand.c
	- history_expand: when processing a string within double quotes
	  (DQUOTE == 1), make the closing double quote inhibit history
	  expansion, as if the word were outside double quotes.  In effect,
	  we assume that the double quote is followed by a character in
	  history_no_expand_chars.  tcsh and csh seem to do this.  This
	  answers a persistent complaint about history expansion

				   10/29
				   -----
make_cmd.c
	- make_arith_for_command: use skip_to_delim to find the next `;'
	  when breaking the string between the double parens into three
	  separate components instead of a simple character loop.  Fixes
	  bug reported by Dan Douglas <ormaaj@gmail.com>

				   11/2
				   ----
Makefile.in
	- make libbuiltins.a depend on builtext.h to serialize its creation
	  and avoid conflict between multiple invocations of mkbuiltins.
	  Fix from Mike Frysinger <vapier@gentoo.org>

				   11/5
				   ----
findcmd.c
	- user_command_matches: if stat(".", ...) returns -1, set st_dev
	  and st_ino fields in dotinfo to 0 to avoid same_file matches
	- find_user_command_in_path: check stat(2) return the same way

lib/glob/glob.c
	- glob_vector: don't call strlen(pat) without checking pat == 0
	- glob_dir_to_array: make sure to free `result' and all allocated
	  members before returning error due to malloc failure
	- glob_vector: make sure to free `nextname' and `npat' on errors
	  (mostly when setting lose = 1)
	- glob_vector: if flags & GX_MATCHDIRS but not GX_ALLDIRS, make
	  sure we free `subdir'
	- glob_filename: when expanding ** (GX_ALLDIRS), make sure we
	  free temp_results (return value from glob_vector)

lib/glob/xmbsrtowcs.c
	- xdupmbstowcs: fix call to realloc to use sizeof (char *) instead
	  of sizeof (char **) when assigning idxtmp

execute_cmd.c
	- print_index_and_element: return 0 right away if L == 0
	- is_dirname: fix memory leak by freeing `temp'
	- time_command: don't try to deref NULL `command' when assigning
	  to `posix_time'
	- shell_execve: null-terminate `sample' after READ_SAMPLE_BUF so it's
	  terminated for functions that expect that

builtins/read.def
	- read_builtin: don't call bind_read_variable with a potentially-null
	  string

pcomplete.c
	- gen_command_matches: don't call dispose_word_desc with a NULL arg
	- gen_compspec_completions: fix memory leak by freeing `ret' before
	  calling gen_action_completions (tcs, ...).  happens when
	  performing directory completion as default and no completions
	  have been generated
	- gen_progcomp_completions: make sure to set foundp to 0 whenever
	  returning NULL
	- it_init_aliases: fix memory leak by freeing alias_list before
	  returning

bashline.c
	- command_word_completion_function: don't call restore_tilde with a
	  NULL directory_part argument
	- bash_directory_expansion: bugfix: don't throw away results of
	  rl_directory_rewrite_hook if it's set and returns non-zero
	- bind_keyseq_to_unix_command: free `kseq' before returning error

arrayfunc.c
	- assign_array_element_internal: make sure `akey' is freed if non-null
	  before returning error
	- assign_compound_array_list: free `akey' before returning error
	- array_value_internal: free `akey' before returning error
	- unbind_array_element: free `akey' before returning error

subst.c
	- array_length_reference: free `akey' before returning error in case
	  of expand_assignment_string_to_string error
	- array_length_reference: free `akey' after call to assoc_reference
	- skip_to_delim: if skipping process and command substitution, free
	  return value from extract_process_subst
	- parameter_brace_substring: free `val' (vtype == VT_VARIABLE) before
	  returning if verify_substring_values fails
	- parameter_brace_expand: remove two duplicate lines that allocate
	  ret in parameter_brace_substring case
	- parameter_brace_expand: convert `free (name); name = xmalloc (...)'
	  to use `xrealloc (name, ...)'
	- parameter_brace_expand: free `name' before returning when handling
	  ${!PREFIX*} expansion
	- split_at_delims: fix memory leak by freeing `d2' before returning

redir.c
	- redirection_error: free `filename' if the redirection operator is
	  REDIR_VARASSIGN by assigning allocname

eval.c
	- send_pwd_to_eterm: fix memory leak by freeing value returned by
	  get_working_directory()

builtins/cd.def
	- change_to_directory: fix memory leak by freeing return value from
	  resetpwd()
	- cd_builtin: fix memory leak by freeing value returned by dirspell()
	- cd_builtin: fix memory leak by freeing `directory' if appropriate
	  before overwriting with return value from resetpwd()

builtins/type.def
	- describe_command: free `full_path' before overwriting it with return
	  value from sh_makepath

builtins/complete.def
	- compgen_builtin: fix memory leak by calling strlist_dispose (sl)
	  before overwriting sl with return value from completions_to_stringlist

builtins/hash.def
	- list_hashed_filename_targets: fix memory leak by freeing `target'

make_cmd.c
	- make_arith_for_command: free `init', `test', and `step' before
	  returning error on parse error

jobs.c
	- initialize_job_control: don't call move_to_high_fd if shell_tty == -1

general.c
	- check_dev_tty: don't call close with an fd < 0
	- legal_number: deal with NULL `string' argument, return invalid

lib/sh/fmtulong.c
	- fmtulong: if the `base' argument is invalid, make sure we index
	  buf by `len-1' at maximum

print_cmd.c
	- print_deferred_heredocs: don't try to dereference a NULL `cstring'
	- cprintf: make sure to call va_end (args)

variables.c
	- push_dollar_vars: fix call to xrealloc to use sizeof (WORD_LIST *)
	  instead of sizeof (WORD_LIST **)

lib/sh/zmapfd.c
	- zmapfd: if read returns error, free result and return -1 immediately
	  instead of trying to reallocate it

				   11/6
				   ----
execute_cmd.c
	- cpl_reap: rewrote to avoid using pointer after freeing it; now builds
	  new coproc list on the fly while traversing the old one and sets the
	  right values for coproc_list when done

				   11/12
				   -----
builtins/set.def
	- if neither -f nor -v supplied, don't allow a readonly function to
	  be implicitly unset.  Fixes bug reported by Jens Schmidt
	  <jens.schmidt35@arcor.de>

lib/readline/callback.c
	- change CALLBACK_READ_RETURN to clear signal handlers before returning
	  from rl_callback_read_char so readline's signal handlers aren't
	  installed when readline doesn't have control.  Idea from Jan
	  Kratochvil <jan.ktratochvil@redhat.com> and the GDB development
	  team

pcomplete.h
	- COPT_NOQUOTE: new complete/compgen option value

builtins/complete.def
	- noquote: new complete/compgen option; will be used to disable
	  filename completion quoting

pcomplete.c
	- pcomp_set_readline_variables: pay attention to COPT_NOQUOTE; turns
	  of rl_filename_quoting_desired if set; turns it on if unset (value
	  is inverted, since default is on)

doc/bash.1,lib/readline/doc/rluser.texi
	- document new -o noquote option to complete/compgen/compopt

pathexp.c
	- quote_string_for_globbing: if QGLOB_REGEXP, make sure characters
	  between brackets in an ERE bracket expression are not inappropriately
	  quoted with backslashes.  This is a pretty substantial change,
	  should be stressed when opening bash up for alpha and beta tests.
	  Fixes bug pointed out by Stephane Chazleas
	  <stephane_chazelas@yahoo.fr>

doc/{bash.1,bashref.texi}
	- document that regexp matches can be inconsistent when quoting
	  characters in bracket expressions, since usual quoting characters
	  lose their meaning within brackets
	- note that regular expression matching when the pattern is stored
	  in a shell variable which is quoted for expansion causes string
	  matching

redir.h
	- RX_SAVEFD: new flag value; notes that a redirection denotes an
	  fd used to save another even if it's not >= SHELL_FD_BASE

redir.c
	- do_redirection_internal: when deciding whether or not to reset the
	  close-on-exec flag on a restored file descriptor, trust the value
	  of redirect->flags & RX_SAVCLEXEC even if the fd is < SHELL_FD_BASE
	  if the RX_SAVEFD flag is set
	- add_undo_redirect: set the RX_SAVEFD flag if the file descriptor
	  limit is such that the shell can't duplicate to a file descriptor
	  >= 10.  Fixes a limitation that tripped a coreutils test reported
	  by Paul Eggert <eggert@cs.ucla.edu>

				   11/19
				   -----
doc/{bash.1,bashref.texi},lib/readline/doc/hsuser.texi
	- make it clear that bash runs HISTFILESIZE=$HISTSIZE after reading
	  the startup files
	- make it clear that bash runs HISTSIZE=500 after reading the
	  startup files
	- make it clear that setting HISTSIZE=0 causes commands to not be
	  saved in the history list
	- make it clear that setting HISTFILESIZE=0 causes the history file
	  to be truncated to zero size

variables.c
	- sv_histsize: change so setting HISTSIZE to a value less than 0
	  causes the history to be `unstifled'
	- sv_histsize: change so setting HISTFILESIZE to a value less than 0
	  results in no file truncation
	- make it clear that numeric values less than 0 for HISTFILESIZE or
	  HISTSIZE inhibit the usual functions

				   11/23
				   -----
parse.y
	- save_input_line_state: add missing `return ls' at the end, since the
	  function is supposed to return its argument.  Pointed out by
	  Andreas Schwab <schwab@linux-m68k.org>

builtins/read.def
	- skip over NUL bytes in input, as most modern shells seem to.  Bug
	  report by Matthew Story <matt@tablethotels.com>

lib/readline/vi_mode.c
	- rl_vi_replace: set _rl_vi_last_key_before_insert to invoking key

				   11/25
				   -----
builtins/read.def
	- read_builtin: if xrealloc returns same pointer as first argument,
	  don't bother with the remove_unwind_protect/add_unwind_protect pair
	- read_builtin: set a flag (`reading') around calls to zread/zreadc
	  and readline()
	- sigalrm: change to set flag (`sigalrm_seen') and only longjmp if
	  currently in read(2) (reading != 0)
	- CHECK_ALRM: new macro, checks sigalrm_seen and longjmps if non-zero,
	  behavior of old SIGALRM catching function
	- read_builtin: call CHECK_ALRM in appropriate places while reading
	  line of input.  Fixes bug reported by Pierre Gaston
	  <pierre.gaston@gmail.com>

lib/readline/vi_mode.c
	- rl_vi_replace: initialize characters before printing characters in
	  vi_replace_keymap to their default values in vi_insertion_keymap,
	  since we're supposed to be in insert mode replacing characters
	- rl_vi_replace: call rl_vi_start_inserting to set last command to
	  `R' for undo
	- rl_vi_replace: set _rl_vi_last_key_before_insert to `R' for future
	  use by _rl_vi_done_inserting
	- vi_save_insert_buffer: new function, broke out code that copies text
	  into vi_insert_buffer from _rl_vi_save_insert
	- _rl_vi_save_replace: new function, saves text modified by
	  rl_vi_replace (using current point and vi_replace_count to figure
	  it out) to vi_replace_buffer
	- _rl_vi_save_insert: call vi_save_insert_buffer
	- _rl_vi_done_inserting: if _rl_vi_last_key_before_insert == 'R', call
	  _rl_vi_save_replace to save text modified in replace mode (uses
	  vi_save_insert_buffer)
	- _rl_vi_replace_insert: new function, replaces the number of chars
	  in vi_insert_buffer after rl_point with contents ov vi_insert_buffer
	- rl_vi_redo: call _rl_vi_replace_insert if last command == 'R' and
	  there's something in vi_insert_buffer.  Fixes bug with `.' not
	  redoing the most recent `R' command, reported by Geoff Clare
	  <g.clare@opengroup.org> in readline area on savannah

				   11/26
				   -----
lib/readline/rlprivate.h
	- RL_SIG_RECEIVED(): evaluate to non-zero if there is a pending signal
	  to be handled
	- RL_SIGINT_RECEIVED(): evaluate to non-zero if there is a pending
	  SIGINT to be handled

lib/readline/complete.c
	- remove all mention of _rl_interrupt_immediately
	- rl_completion_matches: check RL_SIG_RECEIVED after each call to
	  the entry function, call RL_CHECK_SIGNALS if true to handle the
	  signal
	- rl_completion_matches: if RL_SIG_RECEIVED evaluates to true, free
	  and zero out the match_list this function allocated
	- rl_completion_matches: if the completion entry function is
	  rl_filename_completion_function, free the contents of match_list,
	  because that function does not keep state and will not free the
	  entries; avoids possible memory leak pointed out by
	  Garrett Cooper <yanegomi@gmail.com>
	- gen_completion_matches: if RL_SIG_RECEIVED evalutes to true after
	  calling rl_attempted_completion_function, free the returned match
	  list and handle the signal with RL_CHECK_SIGNALS; avoids
	  possible memory leak pointed out by Garrett Cooper
	  <yanegomi@gmail.com>
	- gen_completion_matches: if RL_SIG_RECEIVED evaluates to true after
	  calling rl_completion_matches, free the returned match list and
	  handle the signal with RL_CHECK_SIGNALS

lib/readline/util.c
	- rl_settracefp: new utility function to set the tracing FILE *

lib/readline/signals.c
	- _rl_sigcleanup: pointer to a function that will be called with the
	  signal and a void * argument from _rl_handle_signal
	- _rl_sigcleanarg: void * that the rest of the code can set to have
	  passed to the signal cleanup function
	- _rl_handle_signal: if _rl_sigcleanup set, call as
		(*_rl_sigcleanup) (sig, _rl_sigcleanarg)

lib/readline/rlprivate.h
	- extern declarations for _rl_sigcleanup and _rl_sigcleanarg

lib/readline/complete.c
	- _rl_complete_sigcleanup: signal cleanup function for completion code;
	  calls _rl_free_match_list on _rl_sigcleanarg if signal == SIGINT
	- rl_complete_internal: before calling display_matches if what_to_do
	  == `?', set _rl_sigcleanup to _rl_complete_sigcleanup so the match
	  list gets freed on SIGINT; avoids possible memory leak pointed out
	  by Garrett Cooper <yanegomi@gmail.com>
	- rl_complete_internal: in default switch case, call _rl_free_match_list
	  before returning to avoid memory leak

doc/bashref.texi
	- start at a set of examples for the =~ regular expression matching
	  operator, touching on keeping the pattern in a shell variable and
	  quoting portions of the pattern to remove their special meaning

				   12/1
				   ----
lib/glob/gmisc.c
	- extglob_pattern: new function, returns 1 if pattern passed as an
	  argument looks like an extended globbing pattern

lib/glob/glob.c
	- skipname: return 0 immediately if extglob_pattern returns non-zero,
	  let the extended globbing code do the right thing with skipping
	  names beginning with a `.'
	- mbskipname: return 0 immediately if extglob_pattern returns non-zero,
	  let the extended globbing code do the right thing with skipping
	  names beginning with a `.'.  Fixes bug reported by Yongzhi Pan
	  <panyongzhi@gmail.com>

				   12/2
				   ----
lib/glob/smatch.c
	- patscan, patscan_wc: no longer static so other parts of the glob
	  library can use them, renamed to glob_patscan, glob_patscan_wc

lib/glob/glob.c
	- extern declarations for glob_patscan, glob_patscan_wc
	- wchkname: new function, does skipname on wchar_t pattern and dname,
	  old body of mbskipname after converting to wide chars
	- extglob_skipname: new function, checks all subpatterns in an extglob
	  pattern to determine whether or not a filename should be skipped.
	  Calls skipname for each subpattern.  Dname is only skipped if all
	  subpatterns indicate it should be.  Better fix for bug reported by
	  Yongzhi Pan <panyongzhi@gmail.com>
	- wextglob_skipname: wide-char version of extglob_skipname, calls
	  wchkname instead of calling back into mbskipname for each
	  subpattern to avoid problems with char/wchar_t mismatch
	- skipname: call extglob_skipname if extglob_pattern returns non-zero
	- mbskipname: call wextglob_skipname if extglob_pattern returns non-zero
	- mbskipname: short-circuit immediately if no multibyte chars in
	  pattern or filename

execute_cmd.c
	- execute_cond_node: added parens to patmatch assignment statement to
	  make intent clearer

				   12/3
				   ----
configure.in,config.h.in
	- check for imaxdiv, define HAVE_IMAXDIV if present

expr.c
	- expassign, exp2: use imaxdiv if available.  Doesn't help with checks
	  for overflow from 10/25

				   12/6
				   ----
lib/readline/complete.c
	- compute_lcd_of_matches: if we're ignoring case in the matches, only
	  use what the user typed as the lcd if it matches the first match
	  (after sorting) up to the length of what was typed (if what the
	  user typed is longer than the shortest of the possible matches, use
	  the shortest common length of the matches instead).  If it doesn't
	  match, use the first of the list of matches, as if case were not
	  being ignored.  Fixes bug reported by Clark Wang
	  <dearvoid@gmail.com>

				   12/7
				   ----
builtins/cd.def
	- cd_builtin: add code to return error in case cd has more than one
	  non-option argument, conditional on CD_COMPLAINS define (which is
	  not defined anywhere)

doc/{bash.1,bashref.texi}
	- note that additional arguments to cd following the directory name
	  are ignored.  Suggested by Vaclav Hanzl <hanzl@noel.feld.cvut.cz>

				   12/10
				   -----
lib/readline/input.c
	- rl_read_key: don't need to increment key sequence length here; doing
	  it leads to an off-by-one error

lib/readline/macro.c
	- rl_end_kbd_macro: after off-by-one error with rl_key_sequence_length
	  fixed, can decrement current_macro_index by rl_key_sequence_length
	  (length of key sequence that closes keyboard macro)

lib/readline/readline.c
	- _rl_dispatch_subseq: fix extra increment of rl_key_sequence_length
	  when ESC maps to a new keymap and we're converting meta characters
	  to ESC+key
	- _rl_dispatch_subseq: better increment of rl_key_sequence_length
	  before we dispatch to a function in the ISFUNC case (where the
	  second increment above should have happened)
	- rl_executing_keyseq: the full key sequence that ended up executing
	  a readline command.  Available to the calling application, maintained
	  by _rl_dispatch_subseq, indexed by rl_key_sequence_length
	- rl_executing_key: the key that was bound to the currently-executing
	  readline command.  Same as the `key' argument to the function

lib/readline/readline.h
	- rl_executing_keyseq: extern declaration
	- rl_executing_key: extern declaration
	- rl_key_sequence_length: declaration moved here from rlprivate.h,
	  now part of public interface

lib/readline/rlprivate.h
	- new extern declaration for _rl_executing_keyseq_size, buffer size
	  for rl_executing_keyseq

lib/readline/doc/rltech.texi
	- documented new variables: rl_executing_key, rl_executing_keyseq,
	  rl_key_sequence_length

				   12/13
				   -----
bashline.c
	- bash_execute_unix_command: replace ad-hoc code that searches
	  cmd_xmap for correct command with call to rl_function_of_keyseq
	  using rl_executing_keyseq; now supports key sequences longer
	  than two characters.  Fixes bug reported by Michael Kazior
	  <kazikcz@gmail.com>

				   12/15
				   -----
make_cmd.c
	- make_function_def: don't null out source_file before calling
	  make_command so it can be used later on when the function definition
	  is executed

execute_cmd.c
	- execute_intern_function: second argument is now FUNCTION_DEF *
	  instead of COMMAND *
	- execute_command_internal: call execute_intern_function with the
	  new second argument (the entire FUNCTION_DEF instead of just the
	  command member)
	- execute_intern_function: if DEBUGGER is defined, call
	  bind_function_def before calling bind_function, just like
	  make_function_def does (might be able to take out the call in
	  make_function_def depending on what the debugger does with it).
	  Fixes bug reported by <dethrophes@motd005>

expr.c
	- more minor changes to cases of INTMAX_MIN % -1 and INTMAX_MIN / 1;
	  fix typos and logic errors

				   12/16
				   -----
bashline.c
	- find_cmd_start: change flags to remove SD_NOSKIPCMD so it skips over
	  command substitutions and doesn't treat them as command separators
	- attempt_shell_completion: instead of taking first return from
	  find_cmd_name as command name to use for programmable completion,
	  use loop to skip over assignment statements.  Fixes problem reported
	  by Raphael Droz <raphael.droz+floss@gmail.com>
	- attempt_shell_completion: if we don't find a command name but the
	  command line is non-empty, assume the other words are all assignment
	  statements and flag that point is in a command position so we can
	  do command name completion
	- attempt_shell_completion: if the word being completed is the first
	  word following a series of assignment statements, and the
	  command line is non-empty, flag that point is in a command position
	  so we can do command name completion

lib/readline/history.c
	- history_get_time: atol -> strtol

				   12/18
				   -----
parse.y
	- parser_in_command_position: external interface to the
	  command_token_position macro for use by other parts of the shell,
	  like the completion mechanism

externs.h
	- extern declaration for parser_in_command_position

				   12/19
				   -----

builtins/read.def
	- read_builtin: make sure all calls to bind_read_variable are passed
	  a non-null string.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

bashline.c
	- attempt_shell_completion: mark that we're in a command position if
	  we're at the start of the line and the parser is ready to accept
	  a reserved word or command name.  Feature most recently suggested
	  by Peng Yu <pengyu.ut@gmail.com>

				   12/21
				   -----
lib/readline/bind.c
	- _rl_escchar: return the character that would be backslash-escaped
	  to denote the control character passed as an argument ('\n' -> 'n')
	- _rl_isescape: return 1 if character passed is one that has a
	  backslash escape
	- _rl_untranslate_macro_value: new second argument: use_escapes, if
	  non-zero translate to backslash escapes where possible instead of
	  using straight \C-x for control character `x'.  Change callers
	- _rl_untranslate_macro_value: now global

lib/readline/rlprivate.h
	- _rl_untranslate_macro_value: extern declaration

lib/readline/{macro.c,readline.h}
	- rl_print_last_kbd_macro: new bindable function, inspired by patch
	  from Mitchel Humpherys

lib/readline/funmap.c
	- print-last-kbd-macro: new bindable command, bound to
	  rl_print_last_kbd_macro

lib/readline/doc/{rluser.texi,readline.3},doc/bash.1
	- print-last-kbd-macro: document.

lib/readline/text.c
	- _rl_insert_next: if we're defining a macro, make sure the key gets
	  added to the macro text (should really audit calls to rl_read_key()
	  and make sure the right thing is happening for all of them)

bashline.[ch]
	- print_unix_command_map: new function, prints all bound commands in
	  cmd_xmap using rl_macro_dumper in a reusable format

builtins/bind.def
	- new -X option: print all keysequences bound to Unix commands using
	  print_unix_command_map.  Feature suggested by Dennis Williamson
	  (2/2011)

doc/{bash.1,bashref.texi}
	- document new `bind -X' option

				   12/24
				   -----

doc/{bash.1,bashref.texi}
	- add a couple of sentences to the description of the case modification
	  operators making it clearer that each character of parameter is
	  tested against the pattern, and that the pattern should only attempt
	  to match a single character.  Suggested by Bill Gradwohl
	  <bill@ycc.com>

				   12/28
				   -----
shell.c
	- init_noninteractive: instead of calling set_job_control(0) to
	  unconditionally turn off job control, turn on job control if
	  forced_interactive or jobs_m_flag is set
	- shell_initialize: call initialize_job_control with jobs_m_flag as
	  argument so `bash -m script' enables job control while running the
	  script

jobs.c
	- initialize_job_control: if the `force' argument is non-zero, turn on
	  job control even if the shell is not currently interactive
	  (interactive == 0)

				   12/29
				   -----

flags.h
	- new extern declaration for jobs_m_flag

builtins/{cd,set}.def,doc/{bash.1,bashref.texi}
	- added text clarifying the descriptions of cd -L and -P, suggested by
	  Padraig Brady <p@draigbrady.com>
	- slight change to the description of `set -P' about resolving symbolic
	  links

lib/readline/doc/rluser.texi
	- Added an example to the programmable completion section: _comp_cd,
	  a completion function for cd, with additional verbiage.  Text
	  includes a reference to the bash_completion project

				 1/1/2012
				 --------
jobs.c
	- set_job_status_and_cleanup: note that a job is stopped due to
	  SIGTSTP (any_tstped) if job_control is set; there's no need to
	  test interactive

				    1/5
				    ---
quit.h
	- LASTSIG(): new macro, expands to signal number of last terminating
	  signal received (terminating_signal or SIGINT)

trap.c
	- first_pending_trap: returns lowest signal number with a trap pending
	- trapped_signal_received: set to the last trapped signal the shell
	  received in trap_handler(); reset to 0 in run_pending_traps

builtins/read.def
	- read_builtin: changes to posix-mode (posixly_correct != 0) to make
	  `read' interruptible by a trapped signal.  After the trap runs,
	  read returns 128+sig and does not assign the partially-read line
	  to the named variable(s).  From an austin-group discussion started
	  by David Korn

				   1/11
				   ----
doc/{bash.1,bashref.texi}
	- slight changes to the descriptions of the compat32 and compat40 shell
	  options to clarify their meaning

				   1/12
				   ----
lib/readline/{colors.[ch],parse-colors.[ch]}
	- new files, part of color infrastructure support

Makefile.in,lib/readline/Makefile.in
	- arrange to have colors.o and parse-colors.o added to readline
	  library

{configure,config.h}.in
	- check for stdbool.h, define HAVE_STDBOOL_H if found

				   1/14
				   ----
lib/readline/bind.c
	- colored_stats: new bindable variable, enables using colors to
	  indicate file type when listing completions

lib/readline/complete.c
	- _rl_colored_stats: new variable, controlled by colored-stats bindable
	  variable
	- colored_stat_start, colored_stat_end: new functions to set and reset
	  the terminal color appropriately depending on the type of the
	  filename to be printed
	- print_filename: changes to print colors if `colored-stats' variable
	  set.  Changes contributed by Raphael Droz
	  <raphael.droz+floss@gmail.com>

lib/readline/readline.c
	- rl_initialize_everything: add call to _rl_parse_colors to parse
	  color values out of $LS_COLORS.  May have to add to rl_initialize
	  to make more dynamic if LS_COLORS changes (which doesn't happen
	  very often, if at all)

lib/readline/rlprivate.h
	- _rl_colored_stats: new extern declaration

lib/readline/doc/{readline.3,rluser.texi},doc/bash.1
	- colored-stats: document new bindable readline variable

lib/readline/colors.c
	- _rl_print_color_indicator: call rl_filename_stat_hook before calling
	  lstat/stat so we can get color indicators for stuff like
	  $HOME/Applications

lib/readline/complete.c
	- stat_char: call rl_filename_stat_hook before calling lstat/stat

findcmd.[ch],execute_cmd.c
	- search_for_command: now takes a second `flags' argument; changed
	  header function prototype and callers
	- search_for_command: if (flags & 1), put the command found in $PATH
	  into the command hash table (previous default behavior)

execute_cmd.c
	- is_dirname: call search_for_command with flags argument of 0 so it
	  doesn't try to put something in the command hash table

bashline.c
	- bash_command_name_stat_hook: a hook function for readline's
	  filename_stat_hook that does $PATH searching the same way that
	  execute_cmd.c:execute_disk_command() does it, and rewrites the
	  passed filename if found.  Does not put names into command hash
	  table.  This allows command name completion to take advantage
	  of `visible-stats' and `colored-stats' settings.
	- executable_completion: new function, calls the directory completion
	  hook to expand the filename before calling executable_file or
	  executable_or_directory; change command_word_completion_function to
	  call executable_completion.  This allows $HOME/bin/[TAB] to do
	  command completion and display alternatives

				   1/17
				   ----
pcomplete.c
	- gen_command_matches: now takes a new second argument: the command
	  name as deciphered by the programmable completion code and used
	  to look up the compspec; changed callers (gen_compspec_completions)
	- gen_shell_function_matches: now takes a new second argument: the
	  command that originally caused the completion function to be
	  invoked; changed callers (gen_compspec_completions))
	- build_arg_list: now takes a new second argument: the command name
	  corresponding to the current compspec; changed callers
	  (gen_command_matches, gen_shell_function_matches)
	- build_arg_list: now uses `cmd' argument to create $1 passed to
	  invoked command or shell function
	- gen_compspec_completions: if we skipped a null command at the
	  beginning of the line (e.g., for completing `>'), add a new word for
	  it at the beginning of the word list and increment nw and cw
	  appropriately.  This is all a partial fix for the shortcoming
	  pointed out by Sung Pae <sungpae@gmail.com>

				   1/18
				   ----

{configure,config.h}.in
	- new check: check for AUDIT_USER_TTY defined in <linux/audit.h>,
	  define HAVE_DECL_AUDIT_USER_TTY if both are found

lib/readline/rlconf.h
	- ENABLE_TTY_AUDIT_SUPPORT: new define, allows use of the Linux kernel
	  tty auditing system if it's available and enabled

lib/readline/util.c
	- _rl_audit_tty: new function, send a string to the kernel tty audit
	  system

lib/readline/rlprivate.h
	- _rl_audit_tty: new extern declaration

lib/readline/readline.c
	- readline: call _rl_audit_tty with line to be returned before returning
	  it if the Linux tty audit system is available and it's been enabled
	  in rlconf.h  Original patch from Miroslav Trmac; recent request
	  from Miroslav Lichvar <mlichvar@redhat.com>

				   1/21
				   ----

lib/readline/readline.c:
	- _rl_dispatch_subseq: add an inter-character timeout for multi-char
	  key sequences.  Suggested by <rogerx.oss@gmail.com>.  Still needs
	  work to make a user-settable variable

parse.y
	- shell_getc: make code that uses the pop_alias dependent on ALIAS
	  define

variables.h
	- sv_tz: extern define should only depend on HAVE_TZSET

expr.c
	- expr_streval: if ARRAY_VARS is not defined, set lvalue->ind to -1;
	  move assignment to `ind' inside define
	- expr_bind_array_element: declaration and uses need to be #ifdef
	  ARRAY_VARS

arrayfunc.h
	- AV_ALLOWALL, AV_QUOTED, AV_USEIND: define to 0 if ARRAY_VARS not
	  defined; used in subst.c unconditionally

sig.h
	- make the signal blocking functions not dependent on JOB_CONTROL

sig.c
	- sigprocmask: make the replacement definition not dependent on
	  JOB_CONTROL

trap.c
	- use BLOCK_SIGNAL/UNBLOCK_SIGNAL instead of code dependent on
	  HAVE_POSIX_SIGNALS and BSD signals

				   1/24
				   ----

print_cmd.c
	- print_redirection_list: change the conditions under which
	  r_duplicating_output_word is mapped to r_err_and_out to more or
	  less match those used in redir.c.  Fixes bug pointed out by
	  Dan Douglas <ormaaj@gmail.com>


				   1/29
				   ----
lib/readline/signals.c
	- _rl_block_sigwinch,_rl_release_sigwinch: don't compile in bodies
	  unless SIGWINCH is defined.  Fixes bug reported by Pierre Muller
	  <pierre.muller@ics-cnrs.unistra.fr>

doc/{bash.1,bashref.texi}
	- small modifications to the introduction to the REDIRECTION section
	  to describe how redirections can modify file handles
	- small modification to the section describing base#n to make it
	  clearer that n can be denoted using non-numerics.  From a posting
	  by Linda Walsh <bash@tlinx.org>

				    2/2
				    ---
builtins/printf.def
	- printf_builtin: make sure vbuf is intialized and non-null when -v
	  is supplied, since other parts of the code assume that it's not
	  null (e.g., bind_printf_variable()).  Fixes bug reported by Jim
	  Avera <james_avera@yahoo.com>

				    2/4
				    ---
lib/readline/undo.c
	- _rl_free_undo_list: new function, old body of rl_free_undo_list,
	  frees undo entries in UNDO_LIST * passed as argument
	- rl_free_undo_list: call _rl_free_undo_list

lib/readline/rlprivate.h
	- _rl_free_undo_list: new extern declaration
	- _rl_keyseq_timeout: new extern declaration (see below)

lib/readline/misc.c
	- rl_clear_history: new function.  Clears the history list and frees
	  all associated data similar to history.c:clear_history(), but
	  takes rl_undo_list into account and frees and UNDO_LISTs saved as
	  `data' members of a history list entry

lib/readline/doc/rltech.texi
	- rl_clear_history: documented

lib/readline/readline.c
	- _rl_keyseq_timeout: new variable to hold intra-key timeout value
	  from 1/21 fix; specified in milliseconds.  Default value is 500
	- _rl_dispatch_subseq: change to use _rl_keyseq_timeout as intra-key
	  timeout if it's greater than 0; no timeout if <= 0
	- _rl_dispatch_subseq: don't check for queued keyboard input if we have
	  pushed or pending input, or if we're reading input from a macro

lib/readline/bind.c
	- keyseq-timeout: new bindable variable, shadows _rl_keyseq_timeout
	- string_varlist: add keyseq-timeout
	- sv_seqtimeout: new function to modify value of _rl_keyseq_timeout;
	  clamps negative values at 0 for now
	- _rl_get_string_variable_value: return value for keyseq-timeout

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
	- keyseq-timeout: documented

lib/readline/isearch.c
	- _rl_isearch_dispatch: modification to fix from 7/18 to not use
	  cxt->keymap and cxt->okeymap, since by the time this code is
	  executed, they are equal.  Use `f' to check for rl_insert or
	  unbound func
	- _rl_isearch_dispatch: if we're switching keymaps, not in
	  callback mode, and don't have pending or pushed input, use
	  _rl_input_queued to resolve a potentially ambiguous key sequence.
	  Suggested by Roger Zauner <rogerx.oss@gmail.com>
	- _rl_isearch_dispatch: if we have changed keymaps and resolved to
	  an editing function (not self-insert), make sure we stuff the
	  right characters back onto the input after changing the keymap
	  back so the right editing function is executed after the search
	  is terminated.  Rest of fix for bug reported by Roger Zauner
	  <rogerx.oss@gmail.com>

				    2/5
				    ---
builtins/gen-helpfiles.c
	- new file: reads struct builtin and writes the long docs to files
	  in the `helpdirs' subdirectory.  The filename is given in the
	  previously-unused `handle' member of the struct builtin.  Links
	  with `tmpbuiltins.o', which is created by Makefile to have the
	  right long documentation.  When not cross-compiling, gets the
	  right #defines based on configuration options from config.h instead
	  of trying to parse conditional parts of def files.  Fixes
	  shortcoming pointed out by Andreas Schwab <schwab@linux-m68k.org>

builtins/Makefile.in
	- tmpbuiltins.c: new generated file, created to enable creation of
	  separate helpfiles based on correct #defines instead of trying to
	  parse conditional parts of def files
	- gen-helpfiles: new program to generate helpfiles, links with
	  tmpbuiltins.o
	- HELPFILES_TARGET: new target, substituted by configure to `helpdoc'
	  if separate helpfiles requested
	- targets: new target, libbuiltins.a and $(HELPFILES_TARGET)
	- CREATED_OBJECTS: new variable, holds created object files for
	  make clean; changed make clean to remove created objects
	- helpdoc: changed to call gen-helpfiles instead of mkbuiltins

Makefile.in
	- when building libbuiltins.a, recursively call make with `targets'
	  argument to make sure separate helpfiles get built

configure.in
	- substitute `helpdoc' as value of HELPFILES_TARGET if
	  --enable-separate-helpfiles supplied as configure argument

builtins/mkbuiltins.c
	- `-nofunctions': new argument, causes mkbuiltins to not write value
	  for function implementing a particular builtin to struct builtin
	  and to write document file name to `handle' member of struct builtin
	- no longer writes separate helpfiles; that is left to gen-helpfiles

				    2/8
				    ---
subst.c
	- make sure last_command_exit_value is set to a non-zero value before
	  any calls to report_error, since `-e' set will short-circuit
	  report_error.  Fixes bug reported by Ewan Mellor
	  <Ewan.Mellor@eu.citrix.com>

variables.c
	- make_local_array_variable: added second argument; if non-zero,
	  function will return an existing local associative array variable
	  instead of insisting on an indexed array

variable.h,subst.c
	- make_local_array_variable: changed prototype and caller

builtins/declare.def
	- declare_internal: add second arg to call to make_local_array_variable;
	  making_array_special, which indicates we're processing an
	  assignment like declare a[b]=c.  Fixes seg fault resulting from
	  a being an already-declared local associative array variable in a
	  function.  Ubuntu bash bug 928900.

				   2/14
				   ----

execute_cmd.c
	- execute_command_internal: if redirections into or out of a loop fail,
	  don't try to free ofifo_list unless saved_fifo is non-zero.  It's
	  only valid if saved_fifo is set

				   2/15
				   ----
{arrayfunc,braces,variables}.c
	- last_command_exit_value: make sure it's set before any calls to
	  report_error, since -e will cause that to exit the shell

builtins/common.c
	- get_job_by_name: call internal_error instead of report_error so this
	  doesn't exit the shell

				   2/18
				   ----
builtins/evalstring.c
	- parse_and_execute: make sure the file descriptor to be redirected to
	  is 1 before calling cat_file.  One fix for bug reported by Dan Douglas
	  <ormaaj@gmail.com>

parse.y
	- read_token_word: don't return NUMBER if a string of all digits
	  resolves to a number that overflows the bounds of an intmax_t.
	  Other fix for bug reported by Dan Douglas <ormaaj@gmail.com>

				   2/19
				   ----
lib/sh/strtrans.c
	- ansicstr: use 0x7f as the boundary for characters that translate
	  directly from ASCII to unicode (\u and \U escapes) instead of
	  UCHAR_MAX, since everything >= 0x80 requires more than one byte.
	  Bug and fix from John Kearney <dethrophes@web.de>

builtins/printf.def
	- tescape: ditto for printf \u and \U escape sequences

				   2/20
				   ----
lib/sh/unicode.c
	- u32toutf8: fix to handle encodings up to six bytes long correctly
	  (though technically UTF-8 only has characters up to 4 bytes long).
	  Report and fix from John Kearney <dethrophes@web.de>
	- u32toutf8: first argument is now an unsigned 32-bit quantity,
	  changed callers (u32cconv) to pass c instead of wc
	- u32reset: new function, resets local static state to uninitialized
	  (locale information, currently)

locale.c
	- call u32reset whenever LC_CTYPE/LC_ALL/LANG is changed to reset the
	  cached locale information used by u32cconv.  From a report from
	  John Kearney <dethrophes@web.de>

				   2/21
				   ----
doc/{bash,builtins}.1
	- minor changes from Bjarni Ingi Gislason <bjarniig@rhi.hi.is>

lib/sh/unicode.c
	- u32cconv: only assume you can directly call wctomb on the passed
	  value if __STDC_ISO_10646__ is defined and the value is <=
	  0x7fffffff
	- stub_charset: return locale as default instead of "ASCII", let
	  rest of code decide what to do with it

lib/readline/parens.c
	- _rl_enable_paren_matching: make paren matching work in vi insert
	  mode.  Bug report from <derflob@derflob.de>

				   2/22
				   ----
lib/sh/shquote.c
	- sh_backslash_quote: quote tilde in places where it would be
	  expanded.  From a report from John Kearney <dethrophes@web.de>

				   2/23
				   ----
execute_cmd.c
	- execute_pipeline: wrap the discard_unwind_frame call in #ifdef
	  JOB_CONTROL, since the frame is only created if JOB_CONTROL is
	  defined.  Bug and fix from Doug Kehn <rdkehn@yahoo.com>

				   2/25
				   ----
error.c
	- report_error: make sure last_command_exit_value is non-zero before
	  we call exit_shell, since the exit trap may reference it.  Call
	  exit_shell with last_command_exit_value to allow exit statuses
	  other than 1

unicode.c
	- stub_charset: use local static buffer to hold charset, don't change
	  value returned by get_locale_var.  Based on idea and code from
	  John Kearney <dethrophes@web.de>
	- u32toutf16: function to convert unsigned 32-bit value (unicode) to
	  UTF-16.  From John Kearney <dethrophes@web.de>
	- u32cconv: call u32toutf16 if __STDC_ISO_10646__ defined and wchar_t
	  is two bytes, send result to wcstombs, return if not encoding error.
	  From John Kearney <dethrophes@web.de>
	- u32cconv: return UTF-8 conversion if iconv conversion to local
	  charset is unsupported

				    3/2
				    ---
lib/readline/complete.c
	- print_filename: if there is no directory hook, but there is a stat
	  hook, and we want to append a slash to directories, call the stat
	  hook before calling path_isdir on the expanded directory name.
	  Report and pointer to fix from Steve Rago <sar@nec-labs.com>

				    3/3
				    ---
builtins/evalstring.c
	- parse_and_execute: fix to change of 2/18: make sure the file
	  descriptor being redirected to is 0 before calling cat_file when
	  we see something like $(< file).  Real fix for bug reported by
	  Dan Douglas <ormaaj@gmail.com>

subst.c
	- parameter_brace_patsub: run the replacement string through quote
	  removal even if the expansion is within double quotes, because
	  the parser and string extract functions treat the quotes and
	  backslashes as special.  If they're treated as special, quote
	  removal should remove them (this is the Posix position and
	  compatible with ksh93).  THIS IS NOT BACKWARDS COMPATIBLE.

				    3/4
				    ---
lib/readline/complete.c
	- rl_menu_complete: fix to make show-all-if-ambiguous and
	  menu-complete-display-prefix work together if both are set.  Fix
	  from Sami Pietila <sami.pietila@gmail.com>

				    3/5
				    ---
bashline.c
	- dircomplete_expand_relpath: new variable, if non-zero, means that
	  `shopt -s direxpand' should expand relative pathnames.  Zero by
	  default, not user-settable yet
	- bash_directory_completion_hook: if we have a relative pathname that
	  isn't changed by canonicalization or spell checking after being
	  appended to $PWD, then don't change what the user typed.  Controlled
	  by dircomplete_expand_relpath

				    3/7
				    ---
m4/timespec.m4
	- new macros, cribbed from gnulib and coreutils: find out whether we
	  have `struct timespec' and what file includes it

m4/stat-time.m4
	- new macros, cribbed from gnulib and coreutils: find out whether the
	  mtime/atime/ctime/etctime fields of struct stat are of type
	  struct timespec, and what the name is

include/stat-time.h
	- new file, cribbed from gnulib, with additions from coreutils: include
	  the right file to get the struct timespec define, or provide our own
	  replacement.  Provides a bunch of inline functions to turn the
	  appropriate members of struct stat into `struct timespec' values,
	  zeroing out the tv_nsec field if necessary

test.c
	- include "stat-time.h" for the nanosecond timestamp resolution stuff
	- stat_mtime: new function, returns struct stat and the mod time
	  normalized into a `struct timespec' for the filename passed as the
	  first argument
	- filecomp: call stat_mtime instead of sh_stat for each filename
	  argument to get the mtime as a struct timespec
	- filecomp: call timespec_cmp instead of using a straight arithmetic
	  comparison for the -nt and -ot operators, using timespec returned by
	  stat_mtime.  Added functionality requested by by Werner Fink
	  <werner@suse.de> for systems that can support it

				   3/10
				   ----
include/posixdir.h
	- REAL_DIR_ENTRY: remove dependency on _POSIX_SOURCE, only use feature
	  test macros to decide whether dirent.d_ino is present and usable;
	  define D_INO_AVAILABLE.  Report and fix from Fabrizion Gennari
	  <fabrizio.ge@tiscali.it>
	- D_FILENO_AVAILABLE: define if we can use dirent.d_fileno

lib/sh/getcwd.c
	- use D_FILENO_AVAILABLE to decide whether or not to compile in
	  _path_checkino and whether or not to call it.  Report and initial
	  fix from Fabrizion Gennari <fabrizio.ge@tiscali.it>

lib/readline/signals.c
	- make sure all occurrences of SIGWINCH are protected by #ifdef

sig.c
	- make sure all occurrences of SIGCHLD are protected by #ifdef

nojobs.c
	- make sure SA_RESTART is defined to 0 if the OS doesn't define it

version.c
	- show_shell_version: don't use string literals in printf, use %s.
	  Has added benefit of removing newline from string to be translated

trap.c
	- queue_sigchld_trap: new function, increments the number of pending
	  SIGCHLD signals by the argument, which is by convention the number
	  of children reaped in a call to waitchld()

trap.h
	- queue_sigchld_trap: new extern declaration

jobs.c
	- waitchld: if called from the SIGCHLD signal handler (sigchld > 0),
	  then call queue_sigchld_trap to avoid running the trap in a signal
	  handler context.  Report and original fix from Siddhesh Poyarekar
	  <siddhesh@redhat.com>

lib/sh/unicode.c
	- u32tocesc: take an unsigned 32-bit quantity and encode it using
	  ISO C99 string notation (\u/\U)
	- u32cconv: call u32tocesc as a fallback instead of u32cchar
	- u32cconv: call u32tocesc if iconv cannot convert the character.
	  Maybe do the same thing if iconv_open fails
	- u32reset: call iconv_close on localconv if u32init == 1

				   3/11
				   ----
config-top.h
	- CHECKWINSIZE_DEFAULT: new define, set to initial value of
	  check_window_size (shopt checkwinsize): 0 for off, 1 for on.
	  Default is 0

{jobs,nojobs}.c
	- check_window_size: default initial value to CHECKWINSIZE_DEFAULT

				   3/13
				   ----
doc/bashref.texi
	- change text referring to the copying restrictions to that
	  recommended by the FSF (no Front-Cover Texts and no Back-Cover
	  Texts)

lib/readline/doc/{history,rlman,rluserman}.texi
	- change text referring to the copying restrictions to that
	  recommended by the FSF (no Front-Cover Texts and no Back-Cover
	  Texts)

				   3/15
				   ----
array.c
	- LASTREF_START: new macro to set the starting position for an array
	  traversal to `lastref' if that's valid, and to the start of the array
	  if not.  Used in array_reference, array_insert, array_remove
	- array_remove: try to be a little smarter with lastref instead of
	  unconditionally invalidating it

				   3/16
				   ----
array.c
	- array_insert: fix memory leak by deleting element to be added in the
	  case of an error

				   3/18
				   ----
lib/sh/mbschr.c
	- mbschr: don't call mbrlen unless is_basic is false; devolves to a
	  straight character-by-character run through the string

				   3/19
				   ----
stringlib.c
	- substring: use memcpy instead of strncpy, since we know the length
	  and are going to add our own NUL terminator

				   3/20
				   ----
subst.c
	- parameter_brace_expand_rhs: if expand_string_for_rhs returns a quoted
	  null string (a list with one element for which
	  QUOTED_NULL(list->word->word) returns true), return the quoted null
	  and set the flags in the returned word to indicate it.  Fixes bug
	  reported by Mark Edgar <medgar123@gmail.com>

lib/sh/tmpfile.c
	- use random(3) instead of get_random_number to avoid perturbing the
	  random sequence you get using $RANDOM.  Bug report and fix from
	  Jurij Mihelic <jurij.mihelic@fri.uni-lj.si>

				   3/21
				   ----
config-top.h
	- OPTIMIZE_SEQUENTIAL_ARRAY_ASSIGNMENT: define to 1 to optimize
	  sequential indexed array assignment patterns.  Defined to 1 by
	  default

array.c
	- array_insert: if OPTIMIZE_SEQUENTIAL_ARRAY_ASSIGNMENT is defined,
	  start the search at lastref (see change from 3/15)

				   3/27
				   ----
print_cmd.c
	- debug_print_word_list: new debugging function, prints a word list
	  preceded by an optional string and using a caller-specified
	  separator

				    4/1
				    ---
command.h
	- W_ASSNGLOBAL: new flag, set to indicate declare -g

execute_cmd.c
	- fix_assignment_words: note that we have a -g argument to an assignment
	  builtin and set the W_ASSNGLOBAL flag in the variable word

subst.c
	- dump_word_flags: print out W_ASSNGLOBAL if present
	- do_assignment_internal: only set ASS_MKLOCAL if W_ASSIGNARG is set
	  and W_ASSNGLOBAL is not.  Don't want to create a local variable even
	  if variable_context is non-zero if ASSNGLOBAL is set.  Fixes bug
	  reported by Bill Gradwohl <bill@ycc.com>

				    4/7
				    ---
lib/readline/readline.c
	- _rl_dispatch_subseq: make the `keyseq-timeout' variable apply to
	  ESC processing when in vi mode.  After hitting ESC, readline will
	  wait up to _rl_keyseq_timeout*1000 microseconds (if set) for
	  additional input before dispatching on the ESC and switching to
	  command/movement mode.  Completes timeout work suggested by
	  <rogerx.oss@gmail.com>; this prompted by report from Barry Downes
	  <barry.downes@gmail.com>

lib/sh/shmbchar.c
	- sh_mbsnlen: new function, returns the number of (possibly multibyte)
	  characters in a passed string with a passed length, examining at most
	  maxlen (third argument) bytes

externs.h
	- sh_mbsnlen: extern declaration for new function

shell.c
	- exit_shell: call maybe_save_shell_history if remember_on_history is
	  set, not just in interactive shells.  That means the history is
	  saved if history is enabled, regardless of whether or not the shell
	  is interactive

doc/{bash.1,bashref.texi}
	- TMOUT: fix description to make it explicit that TMOUT is the timeout
	  period for a complete line of input, not just any input.  Fixes
	  problem reported in Ubuntu bug 957303:
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/957303
	- HISTFILE: document change to write history list to history file in
	  any shell with history enabled, not just interactive shells.  This
	  seems to be more logical behavior.  Suggested by Greg Wooledge
	  <wooledg@eeg.ccf.org>

				   4/12
				   ----
lib/readline/colors.h
	- only include stdbool.h if HAVE_STDBOOL_H is defined
	- if HAVE_STDBOOL_H is not defined, provide enough definition for the
	  library to use `bool', `true', and `false'

lib/readline/parse-colors.[ch]
	- don't try to include <stdbool.h> at all; rely on colors.h to do it

lib/sh/snprintf.c
	- vsnprintf_internal: only treat '0' as a flag to indicate zero padding
	  if `.' hasn't been encountered ((flags&PF_DOT) == 0); otherwise treat
	  it as the first digit of a precision specifier.  Fixes bug reported
	  by Petr Sumbera <petr.sumbera@sun.com>

				   4/15
				   ----
lib/sh/snprintf.c
	- vsnprintf_internal: if the '0' and '-' flags both occur, the '0'
	  flag is ignored -- Posix.  Start of a series of fixes based on
	  tests and patches from Petr Sumbera <petr.sumbera@sun.com>
	- PUT_PLUS: make sure PF_PLUS flag is specified before putting the `+'
	- vsnprintf_internal: when '+' is read as a flag, don't set right-
	  justify flag if the LADJUST (`-') flag has already been supplied
	- floating: make sure to output space padding before the `+', zero
	  padding after
	- exponent: make sure to output space padding before the `+', zero
	  padding after
	- exponent: only subtract one from the width for the decimal point
	  if we're really going to print one
	- floating: use presence of PF_PLUS flag to decide whether to account
	  for the `+' in the padded field width.  Ditto for exponent()

				   4/16
				   ----
lib/sh/snprintf.c
	- vsnprint_internal: only reduce precision by 1 when processing the `g'
	  format if it's > 0.  A precision of 0 should stay 0; otherwise it
	  gets set to -1 (NOT_FOUND) and converted to the default
	- number, lnumber: if an explicit precision is supplied, turn off the
	  zero-padding flag and set the pad character back to space
	- number, lnumber: only account for a `+' when performing the field
	  width calculation if the coversion is base 10; we don't add a `+'
	  for other bases

				   4/18
				   ----
tests/printf3.sub
	- try using "perl -e 'print time'" to get the current time in seconds
	  since the epoch if "date +%s" is not available (solaris 8-10)

				   4/19
				   ----
tests/run-printf
	- use cat -v instead of relying on diff -a being available to convert
	  control characters to ascii and avoid the dreaded "Binary files
	  /tmp/xx and printf.right differ"

				   4/20
				   ----
lib/sh/strftime.c
	- incoporated new version from Aharon Robbins <arnold@skeeve.com>

				   4/22
				   ----
doc/{bash.1,bashref.texi}
	- slight change to the description of /dev/tcp and /dev/udp

subst.c
	- match_wpattern: logic fix to the calculation of `simple' (was |=,
	  needs to be &=).  Bug report from Mike Frysinger <vapier@gentoo.org>,
	  fix from Andreas Schwab <schwab@linux-m68k.org>

bashline.c
	- bash_filename_stat_hook: add code from bash_directory_completion_hook
	  that performs pathname canonicalization in the same way that cd and
	  other builtins will do

				   4/25
				   ----
execute_cmd.c
	- execute_pipeline: change the call to move_to_high_fd to make it use
	  getdtablesize() and to not stomp on existing open file descriptors,
	  like the fd the shell is using to read a script.  Bug report from
	  Greg Wooledge <wooledg@eeg.ccf.org>

				    5/6
				    ---
subst.c
	- expand_word_internal: case '$': after calling param_expand and
	  setting had_quoted_null, set TEMP to null.  The code that builds the
	  returned string at the end of the function will take care of making
	  and returning a quoted null string if there's nothing else in
	  ISTRING.  If there is, the quoted null should just go away.  Part of
	  fix for bug reported by Ruediger Kuhlmann <RKuhlmann@orga-systems.com>
	- expand_word_internal: when processing ISTRING to build return value,
	  only set W_HASQUOTEDNULL in the returned word flags if the word is
	  a quoted null string AND had_quoted_null is set.  Rest of fix

				    5/9
				    ---
variables.c
	- bind_variable_internal: if we get an array variable here (implicit
	  assignment to index 0), call make_array_variable_value, which
	  dummies up a fake SHELL_VAR * from array[0].  This matters when
	  we're appending and have to use the current value
	- bind_variable_internal: after computing the new value, treat assoc
	  variables with higher precedence than simple array variables; it
	  might be that a variable has both attributes set

arrayfunc.c
	- bind_array_var_internal: break code out that handles creating the
	  new value to be assigned to an array variable index into a new
	  function, make_array_variable_value.  This handles creating a
	  dummy SHELL_VAR * for implicit array[0] assignment.  Fixes bug
	  reported by Dan Douglas <ormaaj@gmail.com>

arrayfunc.h
	- make_array_variable_value: new extern declaration

				   5/19
				   ----
variables.c
	- bind_int_variable: if an assignment statement like x=y comes in
	  from the expression evaluator, and x is an array, handle it like
	  x[0]=y.  Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

				   5/24
				   ----

braces.c
	- mkseq: handle possible overflow and break the sequence generating
	  loop if it occurs.  Fixes OpenSUSE bug 763591:
	  https://bugzilla.novell.com/show_bug.cgi?id=763591

				   5/25
				   ----
Makefile.in
	- LDFLAGS_FOR_BUILD: add to compilation recipes for build tools
	  buildversion, mksignames, mksyntax
	- LDFLAGS_FOR_BUILD: add to compilation recipes for test tools
	  recho, zecho, printenv, xcase

builtins/Makefile.in
	- LDFLAGS_FOR_BUILD: add to compilation recipes for build tools
	  gen-helpfiles, psize.aux

variables.c
	- bind_int_variable: if LHS is a simple variable name without an array
	  reference, but resolves to an array variable, call
	  bind_array_variable with index 0 to make x=1 equivalent to x[0]=1.
	  Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

				   5/27
				   ----
subst.c
	- expand_word_internal: make sure has_dollar_at doesn't get reset before
	  recursive calls to param_expand or expand_word_internal, since it has
	  to save state of what came before.  Use temp variable and make sure
	  has_dollar_at is incremented if recursive call processes "$@".
	  Fixes bug reported by gregrwm <backuppc-users@whitleymott.net> and
	  supplemented by Dan Douglas <ormaaj@gmail.com>

doc/{bash.1,bashref.texi}
	- changes to the description of substring expansion inspired by
	  suggestions from Bill Gradwohl <bill@ycc.com>

doc/bashref.texi
	- added substring expansion examples inspired by suggestions from
	  Bill Gradwohl <bill@ycc.com>

variables.c
	- find_shell_variable: search for a variable in the list of shell
	  contexts, ignore the temporary environment
	- find_variable_tempenv: search for a variable in the list of shell
	  contexts, force search of the temporary environment
	- find_variable_notempenv: search for a variable in the list of shell
	  contexts, don't force search of the temporary environment

variables.h
	- find_shell_variable: extern declaration
	- find_variable_tempenv: extern declaration
	- find_variable_notempenv: extern declaration

arrayfunc.c
	- bind_array_variable: call find_shell_variable instead of calling
	  var_lookup directly

findcmd.c
	- search_for_command: call find_variable_tempenv instead of
	  find_variable_internal directly
	- _find_user_command_internal: call find_variable_tempenv instead of
	  find_variable_internal directly

builtins/setattr.def
	- set_var_attribute: call find_variable_notempenv instead of
	  find_variable_internal directly
	- show_name_attributes:  call find_variable_tempenv instead of
	  find_variable_internal directly

				    6/1
				    ---
sig.c
	- termsig_handler: don't try to save the shell history on a terminating
	  signal any more, since it just causes too many problems on Linux
	  systems using glibc and glibc malloc

lib/readline/vi_mode.c
	- rl_vi_change_to: change to correctly redo `cc', since `c' is not a vi
	  motion character.  From Red Hat bug 813289
	- rl_vi_delete_to: change to correctly redo `dd', since `d' is not a vi
	  motion character
	- rl_vi_yank_to: change to correctly redo `yy', since `y' is not a vi
	  motion character

				    6/4
				    ---
lib/sh/mktime.c
	- current versions of VMS do not need to include <stddef.h>.  Fix from
	  John E. Malmberg <wb8tyw@qsl.net>

				    6/5
				    ---
lib/sh/eaccess.c
	- sh_stat: instead of using a static buffer to do the DEV_FD_PREFIX
	  translation, use a dynamically-allocated buffer that we keep
	  resizing.  Fixes potential security hole reported by David Leverton
	  <levertond@googlemail.com>

				    6/5
				    ---
braces.c
	- expand_seqterm: check errno == ERANGE after calling strtoimax for
	  rhs and incr.  Part of a set of fixes from Scott McMillan
	  <scotty.mcmillan@gmail.com>
	- expand_seqterm: incr now of type `intmax_t', which changes
	  arguments to mkseq
	- mkseq: a better fix for detecting overflow and underflow since it's
	  undefined in C and compilers `optimize' out overflow checks.  Uses
	  ADDOVERFLOW and SUBOVERFLOW macros
	- mkseq: use sh_imaxabs (new macro) instead of abs() for intmax_t
	  variables
	- mkseq: don't allow incr to be converted to -INTMAX_MIN
	- mkseq: make sure that strvec_create isn't called with a size argument
	  greater than INT_MAX, since it only takes an int

				    6/6
				    ---
braces.c
	- mkseq: try and be smarter about not overallocating elements in
	  the return array if the increment is not 1 or -1

				    6/7
				    ---
parse.y
	- history_delimiting_chars: if the parser says we're in the middle of
	  a compound assignment (PST_COMPASSIGN), just return a space to avoid
	  adding a stray semicolon to the history entry.  Fixes bug reported
	  by "Davide Brini" <dave_br@gmx.com>

				    6/8
				    ---
bashline.c
	- bash_directory_completion_hook: don't attempt spelling correction
	  on the directory name unless the direxpand option is set and we are
	  going to replace the directory name with the corrected one in the
	  readline line.  Suggested by Linda Walsh <bash@tlinx.org>

lib/sh/shquote.c
	- sh_backslash_quote: now takes a third argument: flags.  If non-zero,
	  tildes are not backslash-escaped.  Have to handle both printf %q,
	  where they should be escaped, and filename completion, where they
	  should not when used as usernames

externs.h
	- sh_backslash_quote: declaration now takes a third argument

builtins/printf.def
	- printf_builtin: call sh_backslash_quote with 1 as third argument
	  so tildes get escaped

{bashline,bracecomp}.c
	- call sh_backslash_quote with 0 as third argument so tildes are not
	  escaped in completed words

doc/bash.1
	- add `coproc' to the list of reserved words.  From a report by
	  Jens Schweikhardt <schweikh@schweikhardt.net>

				   6/10
				   ----
execute_cmd.c
	- line_number_for_err_trap: now global, so parse_and_execute can save
	  and restore it with unwind-protect

builtins/evalstring.c
	- parse_prologue: save and restore line_number_for_err_trap along
	  with line_number
	- restore_lastcom: new function, unwind-protect to restore
	  the_printed_command_except_trap
	- parse_prologue: use restore_lastcom to save and restore the value
	  of the_printed_command_except_trap around calls to parse_and_execute
	  (eval/source/.)

				   6/15
				   ----
lib/readline/complete.c
	- complete_fncmp: change filename comparison code to understand
	  multibyte characters, even when doing case-sensitive or case-mapping
	  comparisons.  Fixes problem reported by Nikolay Shirokovskiy
	  <nshyrokovskiy@gmail.com>

				   6/20
				   ----
builtins/mapfile.def
	- mapfile: move the line count increment and check for having read
	  the specified number of lines to the end of the loop to avoid
	  reading an additional line with zgetline.  Fixes bug reported by
	  Dan Douglas <ormaaj@gmail.com>

				   6/21
				   ----

execute_cmd.c
	- execute_pipeline: make sure `lastpipe_flag' is initialized to 0 on
	  all systems, since it's tested later in the function.  Fixes bug
	  reported by John E. Malmberg <wb8tyw@qsl.net>

				   6/22
				   ----
mailcheck.c
	- file_mod_date_changed: return 0 right away if mailstat() does not
	  return success.  Fixes bug with using uninitialized values reported
	  by szymon.kalasz@uj.edu.pl

builtins/set.def
	- the `monitor' option is not available when the shell is compiled
	  without job control, since the underlying `m' flag is not available

nojobs.c
	- job_control: now declared as int variable, initialized to 0, never
	  modified

jobs.h
	- job_control: extern declaration no longer dependent on JOB_CONTROL

execute_cmd.c
	- execute_pipeline: made necessary changes so `lastpipe' shell option
	  is now available in all shells, even those compiled without
	  JOB_CONTROL defined

				   6/23
				   ----
lib/glob/glob.c
	- glob_filename: check for interrupts before returning if glob_vector
	  returns NULL or an error.  Bug reported by Serge van den Boom
	  <svdb@stack.nl>, fix from Andreas Schwab <schwab@linux-m68k.org>
	- call run_pending_traps after each call to QUIT or test of
	  interrupt_state, like we do in mainline shell code
	- glob_vector: don't call QUIT; in `if (lose)' code block; just free
	  memory, return NULL, and let callers deal with interrupt_state or
	  other signals and traps

				   6/25
				   ----
lib/readline/input.c
	- rl_read_key: restructure the loop that calls the event hook a little,
	  so that the hook is called only after rl_gather_tyi returns no input,
	  and any pending input is returned first.  This results in better
	  efficiency for processing pending input without calling the hook
	  on every input character as bash-4.1 did.  From a report from
	  Max Horn <max@quendi.de>

				   6/26
				   ----
trap.c
	- signal_is_pending: return TRUE if SIG argument has been received and
	  a trap is waiting to execute

trap.h
	- signal_is_pending: extern declaration

lib/glob/glob.c
	- glob_vector: check for pending SIGINT trap each time through the loop,
	  just like we check for interrupt_state or terminating_signal, and
	  set `lose = 1' so we clean up after ourselves and interrupt the
	  operation before running the trap.  This may require a change later,
	  maybe call run_pending_traps and do that if run_pending_traps returns?

variables.c
	- sv_histtimefmt: set history_comment_character to default (`#') if
	  it's 0 when we're turning on history timestamps.  The history code
	  uses the history comment character to prefix timestamps, and
	  leaving it at 0 effectively removes them from the history.  From a
	  report to help-bash by Dennis Williamson <dennistwilliamson@gmail.com>

				   6/27
				   ----
lib/readline/signals.c
	- rl_maybe_restore_sighandler: new function, sets handler for SIG to
	  HANDLER->sa_handler only if it's not SIG_IGN.  Needs to be called
	  on same signals set using rl_maybe_set_sighandler, which does not
	  override an existing SIG_IGN handler (SIGALRM is ok since it does
	  the check inline; doesn't mess with SIGWINCH)

				   6/30
				   ----
variables.h
	- additional defines for the new `nameref' variable attribute
	  (att_nameref): nameref_p, nameref_cell, var_setref

variables.c
	- find_variable_nameref: resolve SHELL_VAR V through chain of namerefs
	- find_variable_last_nameref: resolve variable NAME until last in a
	  chain of possibly more than one nameref starting at shell_variables
	- find_global_variable_last_nameref: resolve variable NAME until last
	  in a chain of possibly more than one nameref starting at
	  global_variables
	- find_nameref_at_context: resolve SHELL_VAR V through chain of namerefs	
	  in a specific variable context (usually a local variable hash table)
	- find_variable_nameref_context: resolve SHELL_VAR V through chain of
	  namerefs following a chain of varible contexts
	- find_variable_last_nameref_context: resolve SHELL_VAR V as in
	  find_variable_last_context, but return the final nameref instead of
	  what the final nameref resolves to
	- find_variable_tempenv, find_variable_notempenv, find_global_variable,
	  find_shell_variable, find_variable: modified to follow namerefs
	- find_global_variable_noref: look up a global variable without following
	  any namerefs
	- find_variable_noref: look up a shell variable without following any
	  namerefs
	- bind_variable_internal: modify to follow a chain of namerefs in the
	  global variables table; change to handle assignments to a nameref by
	  following nameref chain
	- bind_variable: modify to follow chain of namerefs when binding to a
	  local variable
	- unbind_variable: changes to unset nameref variables (unsets both
	  nameref and variable it resolves to)

subst.c
	- parameter_brace_expand_word: change to handle expanding nameref whose
	  value is x[n]
	- parameter_brace_expand_indir: change to expand in ksh93-compatible
	  way if variable to be indirected is nameref and a simple (non-array)
	  expansion
	- param_expand: change to expand $foo where foo is a nameref whose value
	  is x[n]

execute_cmd.c
	- execute_for_command: changes to implement ksh93 semantics when index
	  variable is a nameref

builtins/setattr.def
	- show_var_attributes: change to add `n' to flags list if att_nameref
	  is set

builtins/set.def
	- unset_builtin: changes to error messages to follow nameref variables

builtins/declare.def
	- document new -n option
	- declare_internal: new `-n' and `+n' options
	- declare_internal: handle declare -n var[=value] and
	  declare +n var[=value] for existing and non-existant variables.
	  Enforce restriction that nameref variables cannot be arrays.
	  Implement semi-peculiar ksh93 semantics for typeset +n ref=value

				    7/5
				    ---
variables.c
	- unbind_variable: unset whatever a nameref resolves to, leaving the
	  nameref variable itself alone
	- unbind_nameref: new function, unsets a nameref variable, not the
	  variable it references

variables.h
	- unbind_nameref: extern declaration

builtins/set.def
	- unset_builtin: modify to add -n option, which calls unbind_nameref
	  leaving unbind_variable for the usual case.  This required slight
	  changes and additions to the test suite

doc/{bash.1,bashref.texi}
	- document namerefs and typeset/declare/local/unset -n

				   7/13
				   ----
lib/sh/casemod.c
	- include shmbchar.h for is_basic and supporting pieces
	- sh_casemod: use _to_wupper and _to_wlower to convert wide character
	  case instead of TOUPPER and TOLOWER.  Fixes bug reported by
	  Dennis Williamson <dennistwilliamson@gmail.com>, fix from
	  Andreas Schwab <schwab@linux-m68k.org>
	- cval: short-circuit and return ascii value if is_basic tests true
	- sh_casemod: short-circuit and use non-multibyte case modification
	  and toggling code if is_basic tests true

lib/readline/signals.c
	- _rl_{block,release}_sigint: remove the code that actually blocks and
	  releases the signals, since we defer signal handling until calls to
	  RL_CHECK_SIGNALS()

lib/readline/{callback,readline,util}.c
	- if HAVE_POSIX_SIGSETJMP is defined, use sigsetjmp/siglongjmp without
	  saving and restoring the signal mask instead of setjmp/longjmp

lib/readline/rltty.c
	- prepare_terminal_settings: don't mess with IXOFF setting if
	  USE_XON_XOFF defined

doc/{bash.1,bashref.texi}
	- add some text to the description of set -e clarifying its effect
	  on shell functions and shell function execution.  Suggested by
	  Rainer Blome <rainer.blome@gmx.de>

bashline.c
	- edit_and_execute_command: increment current_command_line_count before
	  adding partial line to command history (for command-oriented-history
	  because of rl_newline at beginning of function), then reset it to 0
	  before adding the dummy history entry to make sure the dummy entry
	  doesn't get added to previous incomplete command.  Partial fix for
	  problem reported by Peng Yu <pengyu.ut@gmail.com>

				   7/24
				   ----
configure.in
	- interix: define RECYCLES_PIDS.  Based on a report from Michael
	  Haubenwallner <michael.haubenwallner@salomon.at>

				   7/26
				   ----
jobs.c
	- make_child: call bgp_delete on the newly-created pid unconditionally.
	  Some systems reuse pids before cycling through an entire set of
	  CHILD_MAX/_SC_CHILD_MAX unique pids.  This is no longer dependent
	  on RECYCLES_PIDS.  Based on a report from Michael Haubenwallner
	  <michael.haubenwallner@salomon.at>

support/shobj-conf
	- Mac OS X: drop MACOSX_DEPLOYMENT_TARGET=10.3 from the LDFLAGS. We
	  can finally kill Panther

				   7/28
				   ----
subst.c
	- command_substitute: make sure last_made_pid gets reset if make_child
	  fails

execute_cmd.c
	- execute_command_internal: case cm_simple: decide whether or not to
	  wait_for a child if already_making_children is non-zero, indicates
	  that there is an unwaited-for child.  More of fix for bug report
	  from Michael Haubenwallner <michael.haubenwallner@salomon.at>

jobs.c
	- make_child: call delete_old_job (new_pid) unconditionally, don't
	  bother to check whether or not pid wrap occurred.  Rest of fix for
	  bug report from Michael Haubenwallner
	  <michael.haubenwallner@salomon.at>

				   7/29
				   ----
shell.c
	- subshell_exit: new function, exits the shell (via call to sh_exit())
	  after calling any defined exit trap

externs.h
	- subshell_exit: new extern declaration

execute_cmd.c
	- execute_command_internal: make sure to call subshell_exit for
	  {} group commands executed asynchronously (&).  Part of fix for
	  EXIT trap bug reported by Maarten Billemont <lhunath@lyndir.com>

sig.c
	- reset_terminating_signals: make sure to set termsigs_initialized back
	  to 0, so a subsequent call to initialize_terminating_signals works
	  right.  Rest of fix for bug reported by Maarten Billemont
	  <lhunath@lyndir.com>

{execute_cmd,general,jobs,mailcheck,mksyntax,test}.c
builtins/{cd,fc,pushd,ulimit}.def
lib/malloc/getpagesize.h
lib/sh/{clktck,fpurge,inet_aton,mailstat,oslib,pathcanon,pathphys,spell,strerror}.c
	- make inclusion of <sys/param.h> dependent on HAVE_SYS_PARAM_H
	  consistently

				    8/6
				    ---
lib/readline/histexpand.c
	- history_expand_internal: now takes an additional argument saying
	  whether the history expansion occurs within a quoted string, set to
	  the open quote character
	- history_expand_internal: use new argument instead of checking prev
	  char and initializing quoted_search_delimiter, pass qc directly to
	  get_history_event, where it allows a matching quote to terminate a
	  string defining an event
	- history_expand: change single-quote handling code so that if
	  history_quotes_inhibit_expansion is 0, single quotes are treated
	  like double quotes
	- history_expand: change call to history_expand_internal to pass new
	  argument of `"' if double-quoted string, `'' if single-quoted string;
	  this lets history_expand decide what is a quoted string and what
	  is not

				    8/7
				    ---
configure.in
	- AC_CANONICAL_BUILD: invoke for later use

lib/readline/macro.c
	- _rl_prev_macro_key: new function, inverse of _rl_next_macro_key:
	  backs up the index into the current macro by 1

lib/readline/rlprivate.h
	- _rl_prev_macro_key: extern declaration


lib/readline/readline.c
	- _rl_dispatch_subseq, _rl_subseq_result: don't call _rl_unget_char
	  if we're currently reading from a macro; call _rl_prev_macro_key
	  instead.  Fixes bug reported by Clark Wang <clark.wang@oracle.com>

				   8/13
				   ----
builtins/evalstring.c
	- evalstring(): new function, wrapper around parse_and_execute.
	  make sure we handle cases where parse_and_execute can call `return'
	  and short-circuit without cleaning up properly.  We call
	  parse_and_execute_cleanup() then jump to the previous-saved return
	  location

builtins/common.h
	- extern declaration for evalstring()

builtins/eval.def
	- eval_builtin: make sure we handle `eval " ... return"' in contexts
	  where `return' is valid by calling evalstring().  Fixes bug with
	  `eval return' in sourced files reported by Clark Wang
	  <dearvoid@gmail.com>

trap.c
	- run_pending_traps: call evalstring instead of parse_and_execute.
	  XXX - still needs to handle saving and restoring token state in the
	  presence of `return'; could use unwind_protects for that

builtins/mapfile.def
	- run_callback: call evalstring instead of parse_and_execute

				   8/15
				   ----
bashline.c
	- bash_filename_stat_hook: make sure we don't free local_dirname
	  before using it to canonicalize any expanded filename.  Make sure
	  it always points to *dirname and only free it if we're replacing
	  it.

lib/readline/complete.c
	- append_to_match: make sure we call rl_filename_stat_hook with
	  newly-allocated memory to avoid problems with freeing it twice

				   8/17
				   ----
variables.c,config-top.h
	- if ARRAY_EXPORT is defined to 1 when variables.c is compiled, the
	  code that allows indexed arrays to be exported is enabled and
	  included

				   8/19
				   ----
shell.c
	- call start_debugger from main() only if dollar_vars[1] != 0 (close
	  enough to a non-interactive shell, since we can be interactive with
	  -i while running a shell script).  Fixes oddity reported by
	  Techlive Zheng <techlivezheng@gmail.com>

				   8/20
				   ----
arrayfunc.c
	- quote_array_assignment_chars: don't bother quoting if the word has
	  not been marked as an assignment (W_ASSIGNMENT)
	- quote_array_assignment_chars: turn on W_NOGLOB in the word flags
	  so assignment statements don't undergo globbing.  Partial fix for
	  problems reported by Dan Douglas <ormaaj@gmail.com>

				   8/21
				   ----
command.h
	- W_NOBRACE: new word flag that means to inhibit brace expansion

subst.c
	- brace_expand_word_list: suppress brace expansion for words with
	  W_NOBRACE flag

				   8/22
				   ----
builtins/read.def
	- read_builtin: don't call dequote_string on what we've read, even if
	  we saw an escape character, unless (input_string && *input_string).
	  We may have escaped an IFS whitespace character.  Fixes seg fault
	  reported by <armandsl@gmail.com>

execute_cmd.c
	- execute_command_internal: set the_printed_command_except trap when
	  about to execute a ( ... ) user subshell.  For now, set it only if
	  ERR is trapped; can relax that later.  Fixes bug reported by
	  Mike Frysinger <vapier@gentoo.org>

				   8/23
				   ----
jobs.c
	- remove references to first_pid and pid_wrap, since we're not using
	  them for anything anymore

				   8/24
				   ----
subst.c
	- changes for W_NOBRACE everywhere appropriate: so it can be displayed
	  for debugging, and passed out of expand_word_internal

doc/{bash.1,bashref.texi}
	- small changes to make it clearer that the = and == operators are
	  equivalent, and will cause pattern matching when used with [[.
	  From a question from Michal Soltys <soltys@ziu.info>

doc/bashref.texi
	- some small formatting changes from Karl Berry <karl@freefriends.org>

				   8/27
				   ----
lib/readline/doc/{history,rlman,rluserman}.texi
	- some small formatting changes from Karl Berry <karl@freefriends.org>

arrayfunc.c
	- assign_array_element_internal, assign_compound_array_list,
	  unbind_array_element, array_value_internal: changes to make
	  assignment statements to negative indices (a[-1]=2) and unsetting
	  array elements using negative indices (unset 'a[-1]') work.
	  From suggestions by Dennis Williamson <dennistwilliamson@gmail.com>
	  and Chris F. A. Johnson <chris@cfajohnson.com>

subst.c
	- array_length_reference: changes to make length references to array
	  elements using negative indices (${#a[-1]}) work

				   8/28
				   ----
doc/{bash.1,bashref.texi}
	- document new treatment of negative indices to indexed arrays when
	  assigning, referencing, calculating length, and unsetting

				   8/29
				   ----
shell.c
	- show_shell_usage: add -l to list of shell invocation options (short
	  for --login).  From Red Hat bug 852469

configure.ac
	- renamed from configure.in, as latest autoconf versions want.  Patches
	  Stefano Lattarini <stefano.lattarini@gmail.com>

MANIFEST,Makefile.in,doc/bashref.texi,support/mkconffiles
	- configure.in -> configure.ac

				    9/1
				    ---

parse.y
	- read_token_word: allow words like {array[ind]} to be valid redirection
	  words for constructs like {x}<file

redir.c
	- redir_varassign: bind_var_to_int already handles array assignments,
	  so don't need to do anything more for things like {a[i]}<file
	- redir_varvalue: changes to allow references to {a[i]} when
	  performing redirections using valid_array_reference and
	  get_array_value.  Adds functionality requested most recently by
	  <unknown@vmw-les.eng.vmware.com>

lib/readline/display.c
	- update_line: if the first difference between the old and new lines
	  is completely before any invisible characters in the prompt, we
	  should not adjust _rl_last_c_pos, since it's before any invisible
	  characters.  Fixed in two places
	- prompt_modechar: return a character indicating the editing mode:
	  emacs (@), vi command (:), or vi insert (+)
	- _rl_reset_prompt: new function, just calls rl_expand_prompt.  Will be
	  inlined, placeholder for more changes
	- expand_prompt: if show-mode-in-prompt is enabled, add a character to
	  the front of the prompt indicating the editing mode, adjusting the
	  various variables as appropriate to keep track of the number of
	  visible characters and number of screen positions

lib/readline/bind.c
	- show-mode-in-prompt: new bindable boolean variable, shadowed by
	  _rl_show_mode_in_prompt variable
	- hack_special_boolean_var: call _rl_reset_prompt when toggling or
	  setting show-mode-in-prompt

lib/readline/readline.c
	- readline_internal_setup: make sure the correct vi mode keymap is set
	  before expanding the prompt string for the first time

lib/readline/misc.c
	- rl_emacs_editing_mode: make sure to call _rl_reset_prompt if we're
	  showing the editing mode in the prompt

lib/readline/rlprivate.h
	- _rl_reset_prompt, _rl_show_mode_in_prompt: extern declarations

lib/readline/vi_mode.c
	- rl_vi_insertion_mode: call _rl_reset_prompt
	- rl_vi_movement_mode: call _rl_reset_prompt.  Finishes changes for
	  showing mode in prompt string, originally requested by Miroslav
	  Koskar <mkoskar@gmail.com> and most recently by Jordan Michael
	  Ziegler <jziegler@bnl.gov>

doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
	- document new show-mode-in-prompt variable, off by default

				    9/3
				    ---

jobs.c
	- set_childmax: new function, external mechanism for other parts of
	  the shell to set js.c_childmax, the number of saved exited child
	  statuses to remember
jobs.h
	- set_childmax: extern declaration

variables.c
	- CHILD_MAX: new special variable, with sv_childmax function to
	  run when it changes.  Setting CHILD_MAX to a value greater than
	  zero but less than some maximum (currently 8192) sets the number of
	  exited child statuses to remember.  set_childmax (jobs.c) ensures
	  that the number does not drop below the posix-mandated minimum
	  (CHILD_MAX)

doc/{bash.1,bashref.texi}
	- CHILD_MAX: document new meaning and action when variable is set

				    9/5
				    ---
redir.c
	- redir_varassign: call stupidly_hack_special_variables after
	  assigning fd number to specified variable, so we can use constructs
	  like {BASH_XTRACEFD}>foo.  Suggested by Pierre Gaston
	  <pierre.gaston@gmail.com>

				    9/8
				    ---
expr.c
	- readtok: invalidate previous contents of `curlval' before freeing
	  and reallocating tokstr (which, chances are, will get the same
	  pointer as before and render curlval inconsistent).  Fixes other
	  bug reported by Dan Douglas <ormaaj@gmail.com>

				    9/9
				    ---
lib/readline/complete.c
	- rl_username_completion_function: protect call to setpwent() with
	  #ifdef (HAVE_GETPWENT)/#endif.  Fixes bug reported by
	  Gerd Hofmann <gerd.hofmann.nbg@googlemail.com>

lib/readline/display.c
	- rl_message: second and subsequent calls to rl_message can result in
	  local_prompt being overwritten with new values (e.g., from the
	  successive calls displaying the incremental search string).  Need
	  to free before overwriting if it's not the same as the value saved
	  in saved_local_prompt.  Fixes memory leak reported by
	  Wouter Vermaelen <vermaelen.wouter@gmail.com>

lib/readline/{terminal.c,rlprivate.h}
	- move CUSTOM_REDISPLAY_FUNC and CUSTOM_INPUT_FUNC defines from
	  terminal.c to rlprivate.h so other files can use them

expr.c
	- expr_streval: if noeval is non-zero, just return 0 right away,
	  short-circuiting evaluation completely.  readtok will leave curtok
	  set correctly without re-entering the evaluator at all.  Rest of
	  fix for bug reported by Dan Douglas <ormaaj@gmail.com>

				   9/11
				   ----

parse.y
	- parse_comsub: make sure the `reserved word ok in this context' flag
	  is preserved after we read `do' followed by whitespace.  Fixes bug
	  reported by Benoit Vaugon <benoit.vaugon@gmail.com>

				   9/13
				   ----
configure.ac,config.h.in
	- enable-direxpand-default: new configure option, turns the `direxpand'
	  shell option on by default

bashline.c
	- dircomplete_expand, dircomplete_expand_relpath: initialize to 1 if
	  DIRCOMPLETE_EXPAND_DEFAULT is defined and non-zero

doc/bashref.texi
	- enable-direxpand-default: document new configure option

				   9/14
				   ----
shell.c
	- --protected: make option valid only when wordexp is compiled into
	  the shell.  Fix from Roman Rakus <rrakus@redhat.com>

configure.ac
	- HP NonStop (*-nsk*): compile --without-bash-malloc. Change from
	  Joachim Schmitz <jojo@schmitz-digital.de>

				   9/16
				   ----
subst.c,execute_cmd.c,lib/glob/sm_loop.c,lib/sh/shquote.c
	- minor code cleanups from Joachim Schmitz <jojo@schmitz-digital.de>

lib/readline/colors.h
	- workaround for HP NonStop compiler issue with <stdbool.h> from
	  Joachim Schmitz <jojo@schmitz-digital.de>

				   9/17
				   ----
builtins/printf.def
	- printf_builtin: handle localtime returning NULL, as can happen when
	  encountering overflow.  Bug report and initial fix from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

doc/{bash.1,bashref.texi}
	- emphasize that brace expansion using character ranges ({a..c}) acts
	  as if the C locale were in use.  Prompted by message from
	  Marcel Giannelia <info@skeena.net>

				   9/20
				   ----
lib/sh/wcsnwidth.c
	- wcsnwidth: new function, variant of wcwidth, returns the number of
	  wide characters from a string that will be displayed to not exceed
	  a specified max column position

				   9/21
				   ----
builtins/help.def
	- show_builtin_command_help: break code that displays the short-doc
	  for each builtin in two columns into a new function: dispcolumn
	- wdispcolumn: multibyte-char version of dispcolumn; uses wide
	  chars and printf "%ls" format.  Fixes problem reported by
	  Nguyá»n ThÃ¡i Ngá»c Duy <pclouds@gmail.com>

				   9/22
				   ----
execute_cmd.c
	- execute_disk_command: before running the command-not-found hook,
	  call kill_current_pipeline() to make sure we don't add processes
	  to an existing pipeline or wait for processes erroneously

				   9/23
				   ----
lib/readline/input.c
	- rl_input_available_hook: new hook function, called from
	  _rl_input_available (or _rl_input_queued) to return whether or not
	  input is available wherever the input source is

lib/readline/doc/rltech.texi
	- rl_input_available_hook: document

				   9/27
				   ----
lib/glob/sm_loop.c:
	- GMATCH: after one or more `*', an instance of ?(x) can match zero or
	  1 times (unlike ?, which has to match one character).  The old code
	  failed if it didn't match at least once.  Fixes `a*?(x)' bug.
	- GMATCH: if we hit the end of the search string, but not the end of
	  the pattern, and the rest of the pattern is something that can
	  match the NUL at the end of the search string, we should successfully
	  match.  Fixes `a*!(x)' bug reported by <hans1worst@gmail.com>

				   10/2
				   ----
command.h
	- add c_lock member to coproc structure for future use to tell who is
	  manipulating it

execute_cmd.c
	- execute_coproc: block SIGCHLD while parent is forking coproc
	  process and adding pid to sh_coproc struct to avoid race condition
	  where child is reaped before the pid is assigned and the coproc is
	  never marked as having died.  Fixes race condition identified by
	  Davide Baldini <baldiniebaldini@gmail.com>
	- add assignments to c_lock member of struct coproc in various
	  functions that manipulate it; was used to identify race condition
	- coproc_pidchk: don't call coproc_dispose to avoid using malloc and
	  other functions in a signal handler context
	- coproc_dispose: call BLOCK_SIGNAL/UNBLOCK_SIGNAL for SIGCHLD while
	  manipulating the sh_coproc struct

				   10/6
				   ----
lib/readline/complete.c
	- rl_display_match_list: if printing completions horizontally, don't
	  bother with spacing calculations if limit == 1, which means we are
	  printing one completion per line no matter what.  Fixes bug
	  reported by David Kaasen <kaasen@nvg.ntnu.no>

				   10/7
				   ----
builtins/declare.def
	- declare_internal: add error checking for nameref attribute and
	  variable assignments: self-references, attempts to make an array
	  variable a nameref

subst.c
	- parameter_brace_expand: handle parameter_brace_expand_word returning
	  &expand_param_fatal or &expand_param_error and return the appropriate
	  error value
	- parameter_brace_expand_word: if a nameref variable's value is not a
	  valid identifier, return an error
	- param_expand: if a nameref variable's value is not a valid identifier,
	  return an error

test.c
	- unary_operator: add new -R variable, returns true if variable is set
	  and has the nameref attribute. From ksh93

builtins/test.def
	- add -R to description of conditional commands for help test

doc/{bash.1,bashref.texi}
	- document new -R unary conditional operator

				   10/13
				   -----
trap.c
	- check_signals_and_traps: new function, convenience function for the
	  rest of the shell to check for pending terminating and interrupt
	  signals, and to check for and process any pending traps
	- any_signals_trapped: new function, returns non-zero if any signals
	  are trapped and -1 if not

trap.h
	- extern declaration for check_signals_and_traps

bashline.c
	- bashline_reset: make sure we reset the event hook
	- bash_event_hook: call check_signals_and_traps instead of just
	  checking for terminating signals so we can run pending traps and
	  react to interrupts, and reset the event hook when we're done


				   10/14
				   -----
trap.c
	- trap_handler: if executing in a readline signal handler context,
	  call bashline_set_event_hook to install bash_event_hook to process
	  the signal (if bash cares about it)

sig.c
	- sigint_sighandler: call bashline_set_event_hook to set the event
	  hook if we're executing in a readline signal handler context

lib/readline/input.c
	- rl_getc: call RL_CHECK_SIGNALS if read returns -1/EINTR and the caught
	  signal is SIGINT or SIGQUIT rather than waiting until the next time
	  around the loop
	- rl_getc: call rl_event_hook after calling RL_CHECK_SIGNALS to allow
	  an application signal handler to set the event hook in its own
	  signal handler (e.g., like bash trap_handler or sigint_sighandler)


parse.y
	- yy_readline_get: don't set interrupt_immediately before we call
	  readline().  Inspired by report from lanshun zhou
	  <zls.sogou@gmail.com>

input.c
	- getc_with_restart: add call to run_pending_traps after call to
	  CHECK_TERMSIG

lib/sh/zread.c
	- zread: call check_signals_and_traps if read() returns -1/EINTR
	  instead of just ignoring the EINTR and deferring handling any
	  signal that generated it

builtins/mapfile.def
	- mapfile: don't set interrupt_immediately before calling zgetline()
	  (which uses zread internally)

builtins/read.def
	- read_builtin: don't set interrupt_immediately before calling zread
	  (moved code around so that it was only being set right around calls
	  to zread to avoid signal handler conflicts).  Inspired by report
	  from lanshun zhou <zls.sogou@gmail.com>
	- edit_line: don't set interrupt_immediately around call to readline()
	- include shmbutil.h
	- read_builtin: don't call read_mbchar unless is_basic(c) returns
	  false for the character we just read

				   10/15
				   -----
sig.c
	- throw_to_top_level: if interrupt_state is non-zero, make sure that
	  last_command_exit_value reflects 128+SIGINT if it's not already
	  greater than 128

				   10/20
				   -----
builtins/wait.def
	- WAIT_RETURN: set wait_signal_received back to 0 for the potential
	  next call to wait

quit.h
	- CHECK_WAIT_INTR: macro to check whether trap_handler handled a
	  signal and set wait_signal_received; longjmp to wait_intr_buf in
	  that case

jobs.c
	- wait_for, waitchld: call CHECK_WAIT_INTR at the same places we call
	  CHECK_TERMSIG to check for terminating signals
	- wait_sigint_handler: don't longjmp out of the wait builtin unless
	  interrupt_immediately is set; otherwise just SIGRETURN from the
	  handler
	- wait_sigint_handler: if interrupt_immediately not set, but we are
	  executing in the wait builtin and SIGINT is not trapped, treat it
	  as a `normally received' SIGINT: restore the signal handler and
	  send SIGINT to ourselves
	- waitchld: when in posix mode and running SIGCHLD traps, don't longjmp
	  to wait_intr_buf (and let wait be interrupted) if we're running from
	  a signal handler.  Wait for CHECK_WAIT_INTR to do the longjmp.
	  run_pending_traps will run the SIGCHLD trap later

nojobs.c
	- reap_zombie_children, wait_for_single_pid, wait_for: call
	  CHECK_WAIT_INTR where we call CHECK_TERMSIG
	- wait_sigint_handler: don't longjmp out of the wait builtin unless
	  interrupt_immediately is set; otherwise just SIGRETURN from the
	  handler

trap.c
	- trap_handler: make sure wait_signal_received is set if the wait
	  builtin is executing, and only longjmp if interrupt_immediately is
	  set.  This whole set of fixes was prompted by report from
	  lanshun zhou <zls.sogou@gmail.com>

				   10/24
				   -----
lib/glob/glob.c
	- glob_filename: only check directory_name for globbing chars if
	  it's of non-zero length

lib/sh/strchrnul.c
	- new simpler implementation

subst.c
	- command_substitute: call set_shellopts after turning off errexit
	  in subshells so it's reflected in $SHELLOPTS

				   11/7
				   ----
builtins/evalstring.c
	- parse_and_execute: treat ERREXIT case like reader_loop does: set
	  variable_context to 0 before longjmping back to top_level. Don't
	  run the unwind-protect context to avoid side effects from popping
	  function contexts.  Part of fix for problem reported by Nikolai
	  Kondrashov <nikolai.kondrashov@redhat.com>

execute_cmd.c
	- execute_simple_command: call unlink_fifo_list only if this is the
	  last element of a pipeline (or not in a pipeline), rather than for
	  every child.  Fixes difference in behavior between /dev/fd and
	  FIFOs reported by Zev Weiss <zev@bewilderbeest.net>
	- execute_null_command: do the same thing in the parent branch after
	  make_child

				   11/14
				   -----
subst.c
	- parameter_brace_expand: a variable is null if it's special ($@, $*),
	  the expansion occurs within double quotes, and the expansion turns
	  into a quoted null.  Fixes debian bug 692447 reported by
	  Matrosov Dmitriy <sgf.dma@gmail.com>

jobs.c
	- run_sigchld_trap: make sure `running_trap' sentinel is set
	  appropriately
	- waitchld: only run the sigchld trap if we're not in a signal
	  handler, not running a trap, and executing the wait builtin.
	  Otherwise, queue for later handling.  We still run one instance
	  of the trap handler per exited child.  Bulk of fix for bug
	  reported by Elliott Forney <idfah@cs.colostate.edu>

trap.c
	- queue_sigchld_trap: set catch_flag so run_pending_traps notices,
	  and set trapped_signal_received for completeness.  Rest of fix
	  for bug reported by Elliott Forney <idfah@cs.colostate.edu>

lib/malloc/malloc.c
	- block_signals: renamed to _malloc_block_signals, made public
	- unblock_signals: renamed to _malloc_unblock_signals, made public

lib/malloc/imalloc.h
	- extern declarations for _malloc_{un,}block_signals

lib/malloc/table.c
	- mregister_alloc, mregister_free: block signals around table
	  manipulation

				   11/15
				   -----
trap.c
	- run_pending_traps: set SIG_INPROGRESS flag around calls to
	  run_sigchld_handler so other parts of the shell know that the
	  SIGCHLD trap handler is executing
	- run_pending_traps: if we get a situation where we are looking at
	  running a SIGCHLD trap but the trap string is IMPOSSIBLE_TRAP_HANDLER
	  and the SIG_INPROGRESS flag is set, just skip it.  This is possible
	  if run_pending_traps is called from a SIGCHLD trap handler run by
	  run_sigchld_trap

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
	- corrected description of the effect of `set history-size 0'.  Report
	  from Vesa-Matti J Kari <vmkari@cc.helsinki.fi>

include/stdc.h
	- CPP_STRING: new define, replaces __STRING

lib/malloc/{malloc.c,imalloc.h}
	- replace __STRING with CPP_STRING

				   11/16
				   -----
lib/readline/bind.c
	- sv_histsize: if argument evaluates to a value < 0, unstifle the
	  history

				   11/22
				   -----
redir.c
	- do_redirection_internal: if we have REDIR_VARASSIGN set in the
	  redirection flags and we set up `redirector' using fcntl or dup2,
	  don't add a redirect to make sure it stays open.  Let the
	  script programmer manage the file handle.  Fixes bug reported by
	  Sam Liddicott <sam@liddicott.com>

				   11/24
				   -----
jobs.c
	- wait_for_any_job: new function, waits for an unspecified background
	  job to exit and returns its exit status.  Returns -1 on no background
	  jobs or no children or other errors.  Calls wait_for with new
	  sentinel value ANY_PID
	- wait_for: changes to handle argument of ANY_PID: don't look up or
	  try to modify the child struct, only go through the wait loop once.
	  Return -1 if waitpid returns no children

jobs.h
	- ANY_PID: new define

builtins/wait.def
	- new option: -n. Means to wait for the next job and return its exit
	  status.  Returns 127 if there are no background jobs (or no
	  children).  Feature most recently requested by Elliott Forney
	  <idfah@cs.colostate.edu>

doc/{bash.1,bashref.texi}
	- document new `wait -n' option

execute_cmd.c
	- execute_command_internal: save make_command_string () result in a
	  temp variable before calling savestring() on it; avoids evaluating
	  make_command_string() result twice.  Fix from John E. Malmberg
	  <wb8tyw@qsl.net>

				   11/28
				   -----

builtins/declare.def
	- declare_internal: if an array variable is declared using `declare -a'
	  or `declare -A', but not assigned a value, set the `invisible'
	  attribute so the variable does not show up as set.  Fix for bug
	  about variable initialization reported by Tim Friske <me@timfriske.com>

builtins/{mapfile,read}.def
	- after calling find_or_make_array_variable, make sure the invisible
	  flag is turned off, in case the variable was declared previously
	  using `declare -a' or `declare -A'.  Side effect of above change to
	  declare_internal

subst.c
	- shell_expand_word_list: handle the W_ASSNGLOBAL flag and put -g into
	  the list of options passed to make_internal_declare as appropriate.
	  Fix for bug reported by Tim Friske <me@timfriske.com>

				   11/30
				   -----
test.c
	- unary_op: make sure -v and -n check that the variable is not marked
	  as invisible before calling var_isset.  Fix for bug reported by Tim
	  Friske <me@timfriske.com>

				   12/2
				   ----
subst.c
	- process_substitute: turn off the `expanding_redir' flag, which
	  controls whether or not variables.c:find_variable_internal uses the
	  temporary environment to find variables.  We want to use the
	  temp environment, since we don't have to worry about order of
	  evaluation in a subshell.  Fixes bug reported by Andrey Borzenkov
	  <arvidjaar@gmail.com>

				   12/4
				   ----
lib/glob/glob.c
	- glob_filename: changes to avoid null filenames and multiple entries
	  returned for patterns like **/** (globstar enabled).  Fixes bug
	  reported by Ulf Magnusson <ulfalizer@gmail.com>

				   12/10
				   -----
lib/glob/glob.c
	- glob_filename: finish up a series of changes to make globstar-style	
	  globbing more efficient, avoid more duplicate filenames, and be more
	  compatible with other shells that implement it
		o collapse a sequence of **/**/** to one **
		o note when the directory name is all ** or ends in ** so we
		  can treat it specially when the filename is **
	  All inspired by report from Andrey Borzenkov <arvidjaar@gmail.com>

lib/sh/zread.c
	- zreadn: new function, like zread, but takes an additional argument
	  saying how many bytes to read into the local buffer.  Can be used to
	  implement `read -N' without so many one-byte calls to zreadc.  Code
	  from Mike Frysinger <vapier@gentoo.org>

				   12/12
				   -----
lib/glob/sm_loop.c
	- PATSCAN (glob_patscan): if passed string already points to end of
	  pattern, return NULL immediately.  Fixes problem with
	  extglob_skipname reported by RaphaÃ«l Droz <raphael.droz@gmail.com>

				   12/13
				   -----
execute_cmd.c
	- execute_coproc: handle the command's exit status being inverted
	  (an oversight).  Fixes bug reported by DJ Mills
	  <danielmills1@gmail.com> and Andreas Schwab <schwab@linux-m68k.org>

				   12/14
				   -----
lib/readline/readline.c
	- bind_arrow_keys_internal: add MINGW key bindings for Home, End,
	  Delete, and Insert keys.  Fix from Pierre Muller
	  <pierre.muller@ics-cnrs.unistra.fr>

builtins/printf.def
	- printf_builtin: '%()T' conversion: if there is no argument supplied,
	  behave as if -1 had been supplied (current time).  ksh93-like feature
	  suggested by Clark Wang <dearvoid@gmail.com>

doc/{bash.1,bashref.texi}
	- document new printf %()T default argument behavior

				   12/15
				   -----
lib/readline/display.c
	- displaying_prompt_first_line: new variable, indicates whether or
	  not the first line of output is displaying the prompt.  Always true
	  in normal mode, sometimes false in horizontal scrolling mode
	- rl_redisplay: set displaying_prompt_first_line to true unless we
	  are in horizontal mode; set to false in horizontal mode if the left
	  margin of the displayed line is greater than the end of the prompt
	  string
	- rl_redisplay: when in horizontal scroll mode, don't adjust
	  _rl_last_c_pos by the wrap offset unless the line is displaying
	  a prompt containing invisible chars
	- update line: don't adjust _rl_last_c_pos by the wrap offset unless
	  the line is displaying a prompt containing invisible chars
	- update_line: if shrinking the line by reducing the number of
	  displayed characters, but we have already moved the cursor to the
	  beginning of the line where the first difference starts, don't
	  try to delete characters

builtins/read.def
	- unbuffered_read: set to 2 if invoked as `read -N'
	- if unbuffered_read is set to 2, compute the number of chars we
	  need to read and read that many with zreadn.  Posix mode still
	  uses zreadintr.  Code from Mike Frysinger <vapier@gentoo.org>

doc/{bash.1,bashref.texi}
	- read: make it clear that if read times out, it saves any input
	  read to that point into the variable arguments.  Report from
	  Fiedler Roman <Roman.Fiedler@ait.ac.at>

subst.c
	- command_substitute: change direct assignment of exit_immediately_on_error
	  to use change_flag ('e', FLAG_OFF) instead

flags.c
	- use errexit_flag as the variable modified by changes to the -e
	  option, reflect those changes to exit_immediately_on_error

execute_cmd.c
	- execute_builtin: new global variable, builtin_ignoring_errexit, set
	  to 0 by default and set to 1 if eval/source/command executing in a
	  context where -e should be ignored
	- execute_builtin: set exit_immediately_on_error to errextit_flag
	  after executing eval/source/command in a context where -e should
	  be ignored

flags.c
	- if builtin_ignoring_errexit is set, changes to errexit_flag are
	  not reflected in the setting of exit_immediately_on_error.  Fixes
	  bug reported by Robert Schiele <rschiele@gmail.com>

				   12/23
				   -----
include/posixjmp.h
	- setjmp_nosigs: new define, call setjmp in such a way that it will
	  not manipulate the signal mask

{expr,test,trap}.c
	- setjmp_nosigs: call instead of setjmp; don't need to manipulate
	  signal mask

builtins/read.def
	- read_builtin: setjmp_nosigs: call instead of setjmp; don't need
	  to manipulate signal mask

builtins/evalstring.c:
	- parse_and_execute: setjmp_nosigs: call instead of setjmp; don't need
	  to manipulate signal mask
	- parse_string: setjmp_nosigs: call instead of setjmp; don't need
	  to manipulate signal mask
	- parse_and_execute: save and restore the signal mask if we get a
	  longjmp that doesn't cause us to return or exit (case DISCARD)

				   12/24
				   -----
general.c
	- bash_tilde_expand: only set interrupt_immediately if there are no
	  signals trapped; we want to jump to top level if interrupted but
	  not run any trap commands

				   12/25
				   -----
jobs.c
	- run_sigchld_trap: no longer set interrupt_immediately before calling
	  parse_and_execute, even if this is no longer run in a signal handler
	  context

input.c
	- getc_with_restart: add call to QUIT instead of CHECK_TERMSIG

parse.y
	- yy_stream_get: now that getc_with_restart calls QUIT, don't need to
	  set interrupt_immediately (already had call to run_pending_traps)

execute_cmd.c
	- execute_subshell_builtin_or_function,execute_function,execute_in_subshell:
	  setjmp_nosigs: call instead of setjmp when saving return_catch; don't
	  need to manipulate signal mask
	- execute_subshell_builtin_or_function,execute_in_subshell:
	  setjmp_nosigs: call instead of setjmp where appropriate when saving
	  top_level; don't need to manipulate signal mask if we're going to
	  exit right away

subst.c
	- command_substitute: setjmp_nosigs: call instead of setjmp when saving
	  return_catch; don't need to manipulate signal mask
	- command_substitute: setjmp_nosigs: call instead of setjmp where
	  appropriate when saving top_level; don't need to manipulate signal
	  mask if we're going to exit right away

trap.c
	- run_exit_trap: setjmp_nosigs: call instead of setjmp when saving
	  return_catch; don't need to manipulate signal mask
	- run_exit_trap: setjmp_nosigs: call instead of setjmp where
	  appropriate when saving top_level; don't need to manipulate signal
	  mask if we're going to exit right away
	- _run_trap_internal: setjmp_nosigs: call instead of setjmp when saving
	  return_catch; don't need to manipulate signal mask

builtins/evalfile.c
	- _evalfile: setjmp_nosigs: call instead of setjmp when saving
	  return_catch; don't need to manipulate signal mask

builtins/evalstring.c
	- evalstring: setjmp_nosigs: call instead of setjmp when saving
	  return_catch; don't need to manipulate signal mask

shell.c
	- main: setjmp_nosigs: call instead of setjmp where appropriate when
	  saving top_level; don't need to manipulate signal mask if we're
	  going to exit right away
	- run_one_command: setjmp_nosigs: call instead of setjmp where
	  appropriate when saving top_level; don't need to manipulate signal
	  mask if we're going to exit right away
	- run_wordexp: setjmp_nosigs: call instead of setjmp where
	  appropriate when saving top_level; don't need to manipulate signal
	  mask if we're going to exit right away

eval.c
	- reader_loop: save and restore the signal mask if we get a longjmp
	  that doesn't cause us to return or exit (case DISCARD)

				   12/26
				   -----
parse.y
	- shell_input_line_{index,size,len}: now of type size_t; in some cases
	  the unsigned property makes a difference
	- STRING_SAVER: saved_line_{size,index} now of type size_t
	- shell_getc: don't allow shell_input_line to grow larger than SIZE_MAX;
	  lines longer than that are truncated until read sees a newline;
	  addresses theoretical buffer overflow described by Paul Eggert
	  <eggert@cs.ucla.edu>
	- set_line_mbstate: size_t changes like shell_getc
	- shell_getc: if shell_input_line is larger than 32K, free it and
	  start over to avoid large memory allocations sticking around

variables.c
	- bind_global_variable: new function, binds value to a variable in
	  the global shell_variables table

variables.h
	- bind_global_variable: new extern declaration

builtins/declare.def
	- declare_internal: if -g given with name=value, but variable is not
	  found in the global variable table, make sure to call
	  bind_global_variable so the variable is created and modified at
	  global scope.  Fixes a bug where declare -g x=y could modify `x'
	  at a previous function scope

command.h
	- W_ASSIGNARRAY: new word flag, compound indexed array assignment

subst.h
	- ASS_MKGLOBAL: new assignment flag, forcing global assignment even in
	  a function context, used by declare -g

execute_cmd.c
	- fix_assignment_words: set W_ASSIGNARRAY flag if -a option given to
	  declaration builtin

subst.c
	- do_assignment_internal: explicitly handle case where we are
	  executing in a function and we want to create a global array or
	  assoc variable
	- shell_expand_word_list: call make_internal_declare if -a option
	  given to declaration builtin (W_ASSIGNARRAY); handle -g option with
	  it (W_ASSNGLOBAL).  Fixes inconsistency noticed by Vicente Couce
	  Diaz <vituko@gmail.com>, where declare -ag foo=(bar) could modify
	  array variable foo at previous function scope, not global scope

				   12/27
				   -----
bashline.c
	- Minix needs the third argument to tputs to be a void funtion taking
	  an int argument, not an int-returning function.  Fix from
	  John E. Malmberg <wb8tyw@qsl.net> as part of VMS bash port

				   12/29
				   -----
configure.ac,version.c,patchlevel.h
	- bash-4.3-devel: new version, new shell compatibility level (43)

subst.c
	- parameter_brace_patsub: put the bash-4.2 code back in from the
	  change of 3/3 that runs the replacement string through quote
	  removal, make it dependent on shell_compatibility_level <= 42

builtins/shopt.def
	- compat42: new shopt option
	- set_compatibility_level: change logic to set and unset various
	  compat variables and shell_compatibility_level

COMPAT
	- new documentation for bash-4.3 compatibility changes

doc/{bash.1,bashref.texi}
	- compat42: document new shopt option

builtins/shopt.def
	- set_compatibility_opts: new function, sets the various shopt
	  compat variables based on the value of shell_compatibility_level

builtins/common.h
	- set_compatibility_opts: new extern declaration

variables.c
	- BASH_COMPAT: new special variable; sets the shell compatibility
	  level.  Accepts values in decimal (4.2) or integer (42) form;
	  Unsetting variable, setting it to empty string, or setting it to
	  out-of-range value sets the shell's compatibility level to the
	  default for the current version.  Valid values are 3.1/31 through
	  the current version
	- sv_shcompat: new function implementing logic for BASH_COMPAT

variables.h
	- sv_shcompat: new extern declaration

doc/{bash.1,bashref.texi}
	- BASH_COMPAT: description of new variable

lib/readline/complete.c
	- _rl_colored_stats: default back to 0 for 4.3 release branch

				 1/5/2013
				 --------
quit.h
	- remove spurious call to itrace in CHECK_WAIT_INTR

bashline.c
	- bash_event_hook: if we're going to jump to top_level, make sure we
	  clean up after readline() by calling rl_cleanup_after_signal().
	  Fixes bug reported against devel branch by RaphaÃ«l Droz
	  <raphael.droz@gmail.com>
	- bash_event_hook: reset the event hook before checking for signals
	  or traps in case we longjmp

doc/{bash.1,bashref.texi}
	- small additions to the set -e section to make it more clear that
	  contexts where -e is ignored extend to compound commands as well
	  as shell functions

lib/readline/readline.h
	- rl_signal_event_hook: new extern declaration

lib/readline/input.c
	- rl_signal_event_hook: new variable, hook function to call when a
	  function (currently just read(2)) is interrupted by a signal and
	  not restarted
	- rl_getc: call rl_signal_event_hook instead of rl_event_hook

lib/readline/doc/rltech.texi
	- rl_signal_event_hook: document new function

bashline.c
	- changes to set rl_signal_event_hook instead of rl_event_hook

lib/readline/readline.h
	- change readline version numbers to 6.3

				    1/6
				    ---
doc/{bash.1,bashref.texi}
	- a couple of changes to the descriptions of the ERR trap and its
	  effects based on a message from Rob Nagler <nagler@bivio.biz>

				    1/9
				    ---
expr.c
	- expassign: invalidate curlval before freeing and NULLing tokstr to
	  avoid aliasing issues.  Fixes bug reported by Eduardo A. Bustamante
	  LÃ³pez<dualbus@gmail.com>  and Dan Douglas <ormaaj@gmail.com>

braces.c
	- array_concat: don't be so aggressive in trying to short-circuit. We
	  can only short-circuit if we have a single-element array where the
	  element is an empty string (array[0] == "" array[1] = 0x0).  Existing
	  practice requires us to replicate arrays and prefix or append empty
	  strings.  Fixes bug reported by Eduardo A. Bustamante LÃ³pez
	  <dualbus@gmail.com>

				   1/11
				   ----
execute_cmd.c
	- execute_builtin: since mapfile uses evalstring() to run its callbacks
	  internally, just like eval, so it needs to handle the case where the
	  temp environment given to mapfile persists throughout the entire
	  set of callback commands.  This might be a problem with trap also, but
	  trap isn't run in the same way.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

				   1/13
				   ----
redir.c
	- redirection_error: before expanding the redirection word (if
	  expandable_redirection_filename returns true), disable command
	  substitution during expansion.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

subst.c
	- expand_word_internal: case '\\': if the next character is an IFS
	  character, and the expansion occurs within double quotes, and the
	  character is not one for which backslash retains its meaning, add
	  the (escaped) '\' and the (escaped) character.  Fixes bug reported
	  by Dan Douglas <ormaaj@gmail.com>

				   1/15
				   ----
builtins/cd.def
	- cd_builtin: make sure call to internal_getopt handles -e option.
	  Fixes bug reported by <mashimiao.fnst@cn.fujitsu.com>

				   1/17
				   ----
subst.c
	- expand_word_list_internal: make sure tempenv_assign_error is
	  initialized to 0

execute_cmd.c
	- execute_simple_command: make sure tempenv_assign_error is reset to 0
	  after it's tested to see if an error should force the shell to exit.
	  Fixes problem where a the failure of a tempenv assignment preceding
	  a non-special builtin `sticks' and causes the next special builtin
	  to exit the shell.  From a discussion on bug-bash started by
	  douxin <wq-doux@cn.fujitsu.com>

				   1/20
				   ----
subst.c
	- parameter_brace_expand_rhs: call stupidly_hack_special_variables
	  after assigning with ${param[:]=word} even if IFS is changing.
	  Suggested by Dan Douglas <ormaaj@gmail.com> [TENTATIVE, needs work
	  on IFS side effects]

command.h
	- W_GLOBEXP (which was unused) is now W_SPLITSPACE (which isn't used
	  yet)

{execute_cmd,subst,variables}.c
	- removed all code that mentioned W_GLOBEXP
	- removed mention of gnu_argv_flags and code that set it

				   1/22
				   ----
subst.c
	- param_expand: set W_SPLITSPACE if we expand (unquoted) $* and
	  IFS is unset or null so we can be sure to split this on spaces
	  no matter what happens with IFS later
	- expand_word_internal: note that param_expand returns W_SPLITSPACE
	  in the returned word flags and keep track of that state with
	  `split_on_spaces'

				   1/23
				   ----
subst.c
	- expand_word_internal: if split_on_spaces is non-zero, make sure
	  we split `istring' on spaces and return the resultant word.  The
	  previous expansions should have quoted spaces in the positional
	  parameters where necessary.  Suggested by Dan Douglas
	  <ormaaj@gmail.com>

execute_cmd.c
	- execute_command_internal: make sure any subshell forked to run a
	  group command or user subshell at the end of a pipeline runs any
	  EXIT trap it sets.  Fixes debian bash bug 698411
	  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=698411

subst.c
	- shell_expand_word_list: fix code that creates args for and calls
	  make_internal_declare to avoid calling it twice (missing `else'
	  in 12/26 change)
	- do_assignment_internal: fix code from 12/26 change to fix problem
	  where an existing assoc variable could be converted to an array
	  without checking `mkassoc'

				   1/24
				   ----
builtins/evalfile.c
	- _evalfile: add missing `close (fd)' calls before returning to
	  avoid fd leaks.  Bug and fix from Roman Rakus <rrakus@redhat.com>

				   1/25
				   ----
builtins/read.def
	- read_builtin: don't try to play tricks with the top of the unwind-
	  protect stack after read gets a SIGALRM; save input_string to new
	  memory, run the stack, then restore input_string and assign the
	  variables.  Part of fix for bug reported by konsolebox
	  <konsolebox@gmail.com>; the rest of the fix is with the changes in
	  trap and signal handling and doing away with interrupt_immediately

				   1/26
				   ----
redir.c
	- redirection_expand, write_here_string, write_here_document: before
	  calling any of the word expansion functions, after setting
	  expanding_redir to 1 (which bypasses the temp environment in the
	  variable lookup functions), call sv_ifs to reset the cached IFS-
	  related variables set by subst.c:setifs().  This ensures that
	  redirections will not get any IFS values that are set in the
	  temporary environment, as Posix specifies.  Then, after the word
	  expansions, after resetting expanding_redir to 0, call sv_ifs
	  again to make sure the cached IFS values are set from any
	  assignments in the temporary environment.  We force executing_builtin
	  to 1 to `fool' the variable lookup functions into using any temp
	  environment, then reset it to its old value after sv_ifs returns.
	  This is what allows read() to use the (cached) IFS variables set
	  in the temp environment. Fixes inconsistency reported by Dan Douglas
	  <ormaaj@gmail.com>

				   1/29
				   ----
lib/readline/display.c
	- update_line: fix off-by-one error when updating vis_lbreaks array
	  in a multibyte locale that occurs when moving multibyte chars from
	  one line down to another.  Bug report and fix from Egmont
	  Koblinger <egmont@gmail.com>

				   1/30
				   ----
configure.ac
	- changed version to 4.3-alpha

redir.c
	- redir_open: handle open returning -1/EINTR, which seems to happen
	  a lot with FIFOs and SIGCHLD, and call QUIT to handle other
	  signals that can interrupt open(2).  Bug report and initial fix
	  from Mike Frysinger <vapier@gentoo.org>

				   1/31
				   ----
subst.c
	- parameter_brace_expand: make sure to propagate the PF_ASSIGNRHS flag
	  to parameter_brace_expand_word
	- parameter_brace_expand_word: make sure that if the PF_ASSIGNRHS flag
	  is set and we are expanding ${a[@]} or ${a[*]} we set quoted to
	  include Q_DOUBLE_QUOTES before calling array_value_internal, mirroring
	  what we do for $@ and $*.  Fixes inconsistency reported by Dan
	  Douglas <ormaaj@gmail.com>

configure.ac
	- use AC_CHECK_TOOL instead of AC_CHECK_PROG to check for ar, since it
	  will find $host-prefixed versions of utilities.  Report and fix from
	  Mike Frysinger <vapier@gentoo.org>

builtins/setattr.def
	- set_var_attribute: check whether bind_variable (called when the
	  variable whose attributes are being modified is found in the temp
	  environment) just modified a read-only global variable, and don't
	  bother marking the temporary variable for propagation if so.  The
	  propagation is superfluous and will result in a strange error
	  message

				    2/2
				    ---
variables.c
	- initialize_shell_variables: don't try to import function definitions
	  with invalid names from the environment if already in posix mode,
	  but create them as (invisible) exported variables so they pass
	  through the environment.  Print an error message so user knows
	  what's wrong.  Fixes bug reported by Tomas Trnka <ttrnka@mail.muni.cz>

				    2/9
				    ---

builtins/read.def
	- sigalrm_seen, alrmbuf: now global so the rest of the shell (trap.c)
	  can use them
	- sigalrm: just sets flag, no longer longjmps to alrmbuf; problem was
	  longjmp without manipulating signal mask, leaving SIGALRM blocked

quit.h
	- move CHECK_ALRM macro here from builtins/read.def so trap.c:
	  check_signals() can call it

trap.c
	- check_signals: add call to CHECK_ALRM before QUIT
	- check_signals_and_traps: call check_signals() instead of including
	  CHECK_ALRM and QUIT inline.  Integrating check for read builtin's
	  SIGALRM (where zread call to check_signals_and_traps can see it)
	  fixes problem reported by Mike Frysinger <vapier@gentoo.org>

				   2/12
				   ----
lib/glob/xmbsrtowcs.c
	- xdupmbstowcs2: fixed but where end of string was not handled
	  correctly, causing loop to go past end of string in a bunch of cases.
	  Fixes bug reported by "Dashing" <dashing@hushmail.com>


				   2/13
				   ----
builtins/pushd.def
	- popd_builtin: treat any argument that isn't -n or of the form
	  [-+][[:digit:]]* as an error.  Fixes problem reported by Bruce
	  Korb <bruce.korb@gmail.com>

				   2/14
				   ----
configure.ac
	- add check for sig_atomic_t; already a placeholder for it in
	  config.h.in

				   2/15
				   ----
subst.c
	- do_compound_assignment: don't call assign_compound_array_list with
	  a NULL variable in case make_local_xxx_variable returns NULL
	  (it will if you try to shadow a readonly or noassign variable).
	  Fixes bug reported by Richard Tollerton <rich.tollerton@ni.com>

				   2/16
				   ----
variables.c
	- make_local_variable: print error messager if an attempt is made to
	  create a local variable shadowing a `noassign' variable.  Previously
	  we just silently refused to do it

trap.[ch]
	- get_original_signal: now global so rest of the shell can use it

sig.c
	- initialize_shell_signals: install a signal handler for SIGTERM
	  that does nothing except set a sigterm_received flag instead of
	  ignoring it with SIG_IGN, as long as SIGTERM is not ignored when
	  the shell is started.  Use get_original_signal early to get the
	  original handler, since we will do that later anyway
	- set_signal_handler: if installing sigterm_sighandler as the SIGTERM
	  handler, make sure to add SA_RESTART flag to make it as close to
	  SIG_IGN as possible

sig.h
	- sigterm_sighandler: new extern declaration

quit.h
	- RESET_SIGTERM: set sigterm_receved to 0
	- CHECK_SIGTERM: check sigterm_received; if it's non-zero, treat it
	  as a fatal signal and call termsig_handler to exit the shell

jobs.c
	- make_child: call RESET_SIGTERM just before fork() so we can detect
	  if the child process received a SIGTERM before it's able to change
	  the signal handler back to what it was when the shell started
	  (presumably SIG_DFL).  Only has effect if the shell installed
	  sigterm_sighandler for SIGTERM, interactive shells that were not
	  started with SIG_IGN as the SIGTERM handler
	- make_child: call RESET_SIGTERM in the parent after fork() so the
	  rest of the shell won't react to it

execute_cmd.c
	- execute_simple_command: call CHECK_SIGTERM after make_child in child
	  to catch SIGTERM received after fork() and before restoring old
	  signal handlers
	- execute_disk_command: call CHECK_SIGTERM after make_child in child
	  process after restoring old signal handlers and again just before
	  calling shell_execve.  Fixes race condition observed by
	  Padraig Brady <p@draigbrady.com> when testing with his `timeout'
	  program

lib/readline/display.c
	- open_some_spaces: new function, subset of insert_some_chars that just
	  opens up a specified number of spaces to be overwritten
	- insert_some_spaces: now just calls to open_some_spaces followed by
	  _rl_output_some_chars
	- update_line: use col_temp instead of recalculating it using
	  _rl_col_width in the case where we use more columns with fewer bytes
	- update_line: use open_some_spaces and then output the right number
	  of chars instead of trying to print new characters then overwrite
	  existing characters in two separate calls.  This includes removing
	  some dodgy code and making things simpler.  Fix from Egmont
	  Koblinger <egmont@gmail.com>
	- use new variable `bytes_to_insert' instead of overloading temp in
	  some code blocks (nls - nfd, bytes that comprise the characters
	  different in the new line from the old)

				   2/18
				   ----
redir.c
	- do_redirection_internal: add undoable redirection for the implicit
	  close performed by the <&n- and >&n- redirections.  Fixes bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

				   2/19
				   ----
sig.c
	- termsig_handler: an interactive shell killed by SIGHUP and keeping
	  command history will try to save the shell history before exiting.
	  This is an attempt to preserve the save-history-when-the-terminal-
	  window-is-closed behavior

				   2/21
				   ----
braces.c
	- brace_expand: if a sequence expansion fails (e.g. because the
	  integers overflow), treat that expansion as a simple string, including
	  the braces, and try to process any remainder of the string.  The
	  remainder may include brace expansions.  Derived from SuSE bug
	  804551 example (https://bugzilla.novell.com/show_bug.cgi?id=804551)

				   2/23
				   ----
{quit,sig}.h,sig.c
	- sigterm_received declaration now in sig.h; type is sig_atomic_t
	- sigwinch_received type now sig_atomic_t
	- sig.h includes bashtypes.h and <signal.h> if SIG_DFL not defined
	  (same logic as trap.h) to pick up sig_atomic_t

unwind_prot.c
	- include sig.h before quit.h (reverse order)

				   2/27
				   ----
builtins/shopt.def
	- reset_shopt_options: make sure check_window_size is reset to the
	  default from config.h, not unconditionally to 0

jobs.[ch]
	- last_made_pid, last_asynchronous_pid: now volatile.  Change from SuSE

jobs.c
	- wait_for: if we're using sigaction to install a handler for SIGCHLD,
	  make sure we specify SA_RESTART

lib/{tilde,readline}/shell.c
	- get_home_dir: instead of looking in the password file every time,
	  look once and cache the result

sig.[ch]
	- sigwinch_received, sigterm_received: now `volatile' qualified

sig.c,quit.h
	- interrupt_state,terminating_signal: now sig_atomic_t

				    3/1
				    ---
MANIFEST,examples/*
	- removed around 120 files without FSF copyrights; requested by
	  Karl Berry in early January

				    3/2
				    ---
lib/malloc/malloc.c
	- morecore: only check whether SIGCHLD is trapped if SIGCHLD is defined

doc/bashref.texi
	- Fixed most of the examples in the GNU Parallel section to use better
	  shell idioms following complaints on bug-bash; added a couple of
	  examples and smoothed out the text

quit.h
	- include "sig.h" for sig_atomic_t

lib/readline/display.c
	- update_line: when inserting one or more characters at the end of
	  the display line in a non-multibyte environment, just write from the
	  first difference to the end of the line and return. We don't have
	  to adjust _rl_last_c_pos.  This is needed to adjust from the old
	  two-part copy to a single call to _rl_output_some_chars (change of
	  2/16)

				    3/4
				    ---
Makefile.in,doc/Makefile.in
	- PACKAGE_TARNAME, docdir: new variables substituted by autoconf
	- OTHER_DOCS,OTHER_INSTALLED_DOCS: new variables with auxiliary
	  documentation files to be installed into $(docdir)
	- install: add new rule to install $(OTHER_DOCS)
	- uninstall: add new rule to uninstall $(docdir)/$(OTHER_INSTALLED_DOCS)

doc/bash.1
	- add URL to `POSIX' file in `SEE ALSO' section; put pointer to that
	  section in --posix and set -o posix descriptions

examples/
	- removed around 110 examples at the request of the FSF due to copyright
	  issues

				    3/5
				    ---
builtins/setattr.def
	- readonly: modified help text slightly to make it clearer that
	  functions aren't changed or displayed unless the -f option is given.
	  Report from <gotmynick@gmail.com>

				    3/9
				    ---
include/typemax.h
	- SIZE_MAX: define to 65535 (Posix minimum maximum) if not defined

parse.y
	- include "typemax.h" for possible SIZE_MAX definition, make sure we
	  include it after shell.h

{braces,expr}.c
	- include "typemax.h" for possible INTMAX_MIN and INTMAX_MAX definitions

				   3/10
				   ----
bashline.c
	- bash_default_completion: make sure completion type of `!' (same as
	  TAB but with show-all-if-ambiguous set) and glob-word-completion
	  sets rl_filename_completion_desired to 0 so extra backslashes don't
	  get inserted by `quoting' the completion.  We can't kill all the
	  matches because show-all-if-ambiguous needs them.   Bug report from
	  Marcel (Felix) Giannelia <info@skeena.net>

[bash-4.3-alpha frozen]

				   3/14
				   ----
general.c
	- trim_pathname: use memmove instead of memcpy since the source and
	  destination pathnames may overlap.  Report and fix from Matthew
	  Riley <mattdr@google.com>

				   3/18
				   ----
configure.ac
	- socklen_t is defined as `unsigned int' if configure can't find it

				   3/20
				   ----
lib/readline/complete.c
	- S_ISVTX: since it's not defined on all platforms (Minix), make sure
	  its use is protected with #ifdef

				   3/21
				   ----
doc/{bash.1,bashref.texi}
	- Added mention of ${!name[@]} and ${!name[*]} expansions to get all
	  indices of an array.  Suggested by Jonathan Leffler
	  <jonathan.leffler@gmail.com>

				   3/24
				   ----
subst.h
	- SD_IGNOREQUOTE: new define for skip_to_delim; if set, means that
	  single quotes (for now) will be treated as ordinary characters

subst.c
	- skip_to_delim: handle SD_IGNOREQUOTE. no callers use it for now

				   3/25
				   ----
support/config.{guess,sub}
	- updated to versions from autoconf-2.69

				   3/31
				   ----
lib/sh/shquote.c
	- sh_single_quote: short-circuit quoting a single "'" instead of
	  creating a long string with empty single-quoted strings

parser.h
	- DOLBRACE_QUOTE2: new define, like DOLBRACE_QUOTE, but need to single-
	  quote results of $'...' expansion because quote removal will be
	  done later.  Right now this is only done for ${word/pat/rep}

parse.y
	- parse_matched_pair: set state to DOLBRACE_QUOTE2 for pattern
	  substitution word expansion so we don't treat single quote specially
	  in the pattern or replacement string
	- parse_matched_pair: if we're parsing a dollar-brace word expansion
	  (${...}) and we're not treating single quote specially within
	  double quotes, single-quote the translation of $'...' ansi-c
	  escaped strings.  Original report and fix from Eduardo A.
	  Bustamante LÃ³pez <dualbus@gmail.com>

subst.c
	- extract_dollar_brace_string: ${word/pat/rep} scanning now sets the
	  DOLBRACE_QUOTE2 flag instead of DOLBRACE_QUOTE so we don't treat
	  single quotes specially within a double-quoted string

execute_cmd.c
	- fix_assignment_words: skip over assignment statements preceding a
	  command word before trying to figure out whether or not assignment
	  statements following a possible declaration command should be 
	  treated specially.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

				    4/4
				    ---
lib/readline/readline.c
	- _rl_dispatch_subseq: only call _rl_vi_set_last (and check whether
	  the key is a text modification command) if the key sequence length
	  is 1.  That keeps the arrow keys from setting the last command
	  when called in vi command mode.  Fixes bug reported by Ian A.
	  Watson <watson_ian_a@lilly.com>

				    4/6
				    ---
lib/readline/bind.c
	- rl_parse_and_bind: when parsing a double-quoted string as the value
	  of a variable, make sure we skip past the leading double quote.
	  Fix from Andreas Schwab <schwab@linux-m68k.org>

variables.c
	- hash_lookup: set new local variable last_table_searched to the table
	  a successful lookup appears in; tested in make_local_variable to
	  solve the problem below
	- make_local_variable: if we find a variable with the tempenv flag
	  set at the same `level' as variable_context', but not found in the
	  temporary_env (temp environment preceding the builtin), return it.
	  The temp environment preceding the function call has already been
	  merged (in execute_function) into the list of variable contexts the
	  function sees as shell_variables by the time this is called.  Fixes
	  inconsistency pointed out by Dan Douglas <ormaaj@gmail.com>

subst.c
	- expand_arith_string: expanded out contents of expand_string,
	  expand_string_internal, expand_string_if_necessary to create a
	  WORD_DESC and call call_expand_word_internal() on it directly.
	  We don't want process substitution to be performed ( 1<(2) ) should
	  mean something different in an arithmetic expression context.
	  It doesn't work to just turn on the DQUOTE flag, since that means
	  that things like ${x["expression"]} are not expanded correctly.
	  Fixes problem pointed out by Dan Douglas <ormaaj@gmail.com>

				   4/13
				   ----
subst.c
	- process_substitute: run the EXIT trap before exiting, as other
	  shells seem to.  Fixes problem pointed out by Dan Douglas
	  <ormaaj@gmail.com>

lib/readline/readline.c
	- readline_internal_setup: call rl_vi_insertion_mode to enter vi
	  mode instead of rl_vi_insert_mode to avoid resetting the saved last
	  command information.  Posix says that `.' can repeat a command
	  that was entered on a previous line so we need to save the info.
	  Fixes bug reported by Ian A. Watson <watson_ian_a@lilly.com>

				   4/14
				   ----
lib/readline/complete.c
	- rl_completion_matches: make sure xrealloc returns something non-null
	  (can happen when interrupted by a signal) before trying to add
	  matches to match_list

subst.c
	- array_remove_pattern: return NULL right away if array_variable_part
	  returns an invisible variable
	- array_length_reference: handle array_variable_part returning an
	  invisible variable
	- get_var_and_type: handle array_variable_part returning an invisible
	  variable

				   4/15
				   ----
execute_cmd.c
	- execute_command_internal: make sure to run the EXIT trap for group
	  commands anywhere in pipelines, not just at the end.  From a point
	  raised by Andreas Schwab <schwab@linux-m68k.org>

variables.c
	- bind_int_variable: make sure invisible flag is unset.  Fixes problems
	  like "declare -ai a; : $(( a[4]=4 ));"

arrayfunc.c
	- array_variable_part: return variable even if invisible flag set,
	  callers must handle invisible vars

				   4/18
				   ----
builtins/set.def
	- unset_builtin: if -n flag given, call unset_nameref instead of
	  unset_variable

variables.c
	- find_variable_nameref: print warning message if nameref circular
	  reference detected, return NULL and let caller deal with it

builtins/declare.def
	- declare_builtin: only disallow global references at this point if
	  we are at the global scope

				   5/16
				   ----
configure.ac
	- update release status to beta

				   5/23
				   ----
trap.c
	- run_pending_traps: save and restore pipeline around calls to
	  evalstring() in case we get a trap while running a trap. Have to
	  figure out the recursive running traps issue elsewhere.  Fixes
	  bug reported by Roman Rakus <rrakus@redhat.com>
	- run_pending_traps: make sure to set running_trap to the appropriate
	  signal value when running a trap command
	- run_pending_traps: short-circuit immediately if running_trap set
	  when invoked.  Could change this later to only skip if it would
	  run the same trap as currently being run (running_trap == sig + 1)

configure.ac
	- add warning if bison not found

lib/readline/doc/rltech.texi
	- new section with an example program illustrating the callback
	  interface. Suggested by Peng Yu <pengyu.ut@gmail.com>

examples/loadables/Makefile.in
	- remove references to `cut' and `getconf', which were removed in
	  early March

				   5/28
				   ----
lib/sh/pathphys.c
	- sh_realpath: correct inverted two arguments to call to sh_makepath.
	  Report and fix from Julien Thomas <jthomas@exosec.fr>

				    6/7
				    ---
execute_cmd.c
	- executing_line_number: the else clauses that are conditional on
	  various options being defined can simply be if clauses -- they are
	  mutually exclusive and all have `return' in the body.  Fixes bug
	  reported by Flavio Medeiros <flaviomotamedeiros@gmail.com>

				   6/25
				   ----
lib/readline/readline.c
	- readline_internal_setup: only sent the meta-key enable string to the
	  terminal if we've been told to use one and the terminal has been
	  successfully initialized (RL_ISSTATE (RL_STATE_TERMPREPPED) != 0).
	  Suggested by Dan Mick <dan.mick@inktank.com>

lib/readline/signals.c
	- _rl_signal_handler: call any defined signal hook after calling
	  rl_resize_terminal when handling a SIGWINCH.  We already have called
	  the original SIGWINCH handler but will not be resending the signal
	  to ourselves

				   6/27
				   ----
lib/readline/doc/history.3, doc/bash.1
	- fix description of the `$' modifier to note that it expands to the
	  last *word*, which is not always the last argument.  Report from
	  ariyetz@gmail.com via gnu.org RT

				   6/29
				   ----
lib/glob/smatch.c
	- glob_asciiranges: initialize to value of GLOBASCII_DEFAULT instead
	  of 0 (0 if not defined)

configure.ac,config.h.in
	- --enable-glob-asciiranges-default: new option, controls the value of
	  GLOBASCII_DEFAULT; use it to turn globasciiranges shopt option on
	  by default

doc/bashref.texi
	- document new --enable-glob-asciiranges-default configure option

variables.c
	- assign_in_env: implement += value appending semantics for assignments
	  preceding command names

				    7/4
				    ---
expr.c
	- set lasttok = NUM in all of the functions that result in a number,
	  even if it's a boolean, to avoid errors with constructs like
	  1 * x = 1, which should be an asignment error.  Fixes problem
	  pointed out by Dan Douglas <ormaaj@gmail.com>

parse.y
	- decode_prompt_string: don't bother to call strcpy if
	  polite_directory_format returns its argument unchanged.  It's not
	  necessary and Mac OS X 10.9 aborts because of a supposed overlapping
	  string copy.  Bug and fix from simon@hitzemann.org

subst.c
	- parameter_brace_find_indir: new function, code from
	  parameter_brace_expand_indir that looks up the indirectly-referenced
	  variable, but does not expand it
	- parameter_brace_expand_indir: call parameter_brace_find_indir to
	  look up indirected variable reference
	- get_var_and_type: call parameter_brace_find_indir if it looks like we
	  are trying to manipulate an indirect variable reference like
	  ${!b%%foo}.  This makes a difference if !b references an array
	  variable.  Bug report from Dan Douglas <ormaaj@gmail.com>

				    7/6
				    ---
lib/sh/casemod.c
	- sh_modcase: make sure argument passed to is_basic is <= UCHAR_MAX,
	  since cval can convert something to a wchar_t greater than UCHAR_MAX.
	  Fixes bug reported by Tomasz Tomasik <scx.mail@gmail.com>

				    7/8
				    ---
lib/readline/history.c
	- add_history_time: if history_length == 0, referencing history_length
	  - 1 will result in an array bounds error, so make history_length be
	  at least 1 before going on.  Fixes bug reported by Geng Sheng Liu
	  <gsliu.tju@gmail.com>

builtins/setattr.def
	- show_func_attributes: display definition (if NODEFS argument is 0) and
	  attributes for a particular function; used by `declare -fp name'

builtins/declare.def
	- declare_internal: call show_func_attributes if -f supplied with -p.
	  Fixes inconsistency observed by Linda Walsh <bash@tlinx.org>

builtins/common.h
	- new extern declaration for show_func_attributes

builtins/read.def
	- read_builtin: check the first supplied variable name for validity
	  before attempting to read any input, since we know we will have to
	  at least use that one.  Don't check any other names yet.  Suggested
	  by jidanni@jidanni.org

				   7/10
				   ----
redir.c
	- do_redirection_internal: when closing a file descriptor with
	  r_close_this ([n]<&-) count close errors as redirection errors if
	  errno ends up as EIO or ENOSPC.  Originally reported back in April
	  2012 by Andrey Zaitsev <jstcdr@gmail.com>

				   7/11
				   ----
redir.c
	- do_redirection_internal: before calling check_bash_input, make sure
	  that we don't call check_bash_input for an asynchronous process that
	  is replacing stdin with something else. The seek backwards affects
	  the parent process as well, since parents and children share the
	  file pointer. Fixes problem originally reported in March 2013 by
	  Martin Jackson <mjackson220.list@gmail.com>

				   7/13
				   ----
doc/{bash.1,bashref.texi}
	- slight change to add a description of `shopt -o' suggested by Bruce
	  Korb <bruce.korb@gmail.com>

				   7/19
				   ----
lib/readline/histfile.c
	- history_do_write: if close returns < 0, make sure we restore the
	  backup history file and return a non-zero value
	- history_truncate_file: if write or close return < 0, make sure we
	  return a non-zero value

[bash-4.3-beta frozen]

				   7/21
				   ----
lib/readline/isearch.c
	- rl_display_search: now takes an entire search context flags word as
	  the second argument, instead of just reverse flag; changed callers
	- rl_display_search: if the search has failed, add `failed ' to the
	  beginning of the search prompt
	- _rl_isearch_dispatch: if the search has failed, display the entire
	  search string with an indication that the search failed but with the
	  last matching line.  Suggested by jidanni@jidanni.org

command.h
	- W_ASSIGNINT: new word flag; used internally for make_internal_declare
	  and set by fix_assignment_words

execute_cmd.c
	- fix_assignment_words: set W_ASSIGNINT if compound assignment and -i
	  given as option.  We don't do anything with the value yet

subst.c
	- shell_expand_word_list: rework the way the option list that is
	  passed to make_internal_declare is created

				    8/1
				    ---
doc/{bash.1,bashref.texi}
	- minor changes to description of $! based on a report from Chris
	  Down <chris@chrisdown.name>

arrayfunc.c
	- assign_array_element_internal: before trying to get an array's max
	  index to process a negative subscript, make sure the array exists.
	  Bug report from Geir Hauge <geir.hauge@gmail.com>

				    8/2
				    ---
arrayfunc.c
	- assign_array_element_internal: before using array_max_index() when
	  processing a negative subscript, make sure the variable is an array.
	  if it's not, use 0 as array_max_index assuming it's a string.
	  Fixes bug report from Geir Hauge <geir.hauge@gmail.com>

				    8/3
				    ---
Makefile.in
	- pcomplete.o: add dependency on $(DEFDIR)/builtext.h. Suggested by
	  Curtis Doty <curtis@greenkey.net>

				    8/5
				    ---
lib/glob/sm_loop.c
	- strcompare: short-circuit and return FNM_NOMATCH if the lengths of the
	  pattern and string (pe - p  and se - s, respectively) are not equal
	- strcompare: don't bother trying to set *pe or *se to '\0' if that's
	  what they already are.  Fixes bug reported by Geir Hauge
	  <geir.hauge@gmail.com>

				    8/6
				    ---
doc/{bash.1,bashref.texi},builtins/hash.def,lib/readline/doc/rluser.texi
	- minor typo changes from Geir Hauge <geir.hauge@gmail.com>

bultins/help.def
	- show_longdoc: avoid trying to translate the empty string because it
	  often translates to some boilerplate about the project and
	  translation.  Report and fix from Geir Hauge <geir.hauge@gmail.com>

				    8/8
				    ---
builtins/help.def
	- help_builtin: try two passes through the list of help topics for each
	  argument: one doing exact string matching and one, if the first pass
	  fails to find a match, doing string prefix matching like previous
	  versions.  This prevents `help read' from matching both `read' and
	  `readonly', but allows `help r' to match everything beginning with
	  `r'.  Inspired by report from Geir Hauge <geir.hauge@gmail.com>

				   8/13
				   ----
builtins/fc.def
	- fc_builtin,fc_gethnum: calculate `real' end of the history list and
	  use it if -0 is specified as the beginning or end of the history
	  range to list.  Doesn't work for fc -e or fc -s by design.  Feature
	  requested by Mike Fied <micfied@gmail.com>

				   8/16
				   ----
trap.c
	- _run_trap_internal: use {save,restore}_parser_state instead of
	  {save,restore}_token_state. It's more comprehensive

				   8/23
				   ----
doc/bash.1
	- disown: remove repeated text.  Report and fix from Thomas Hood
	  <jdthood@gmail.com>

				   8/25
				   ----
lib/readline/rltty.c
	- set_special_char: fix prototype (last arg is rl_command_func_t *)

sig.c
	- set_signal_handler: return oact.sa_handler only if sigaction
	  succeeds; if it doesn't, return SIG_DFL (reasonable default).  From
	  https://bugzilla.redhat.com/show_bug.cgi?id=911404

bashline.c
	- attempt_shell_completion: fix to skip assignment statements preceding
	  command name even if there are no programmable completions defined.
	  From https://bugzilla.redhat.com/show_bug.cgi?id=994659
	- attempt_shell_completion: if still completing command word following
	  assignment statements, do command completion even if programmable
	  completion defined for partial command name entered so far

				   8/26
				   ----
pcomplete.c
	- pcomp_filename_completion_function: make sure rl_filename_dequoting_function
	  is non-NULL before trying to call it.  Bug and fix from
	  Andreas Schwab <schwab@linux-m68k.org>

bashline.c
	- bash_command_name_stat_hook: if *name is not something we're going
	  to look up in $PATH (absolute_program(*name) != 0), just call the
	  usual bash_filename_stat_hook and return those results.  This makes
	  completions like $PWD/exam[TAB] add a trailing slash

				    9/2
				    ---
builtins/read.def
	- read_builtin: before comparing what we read to the delim, make sure
	  we are not supposed to be ignoring the delimiter (read -N).  We
	  set the delim to -1, but it's possible to read a character whose
	  int value ends up being between -1 and -128.  Fixes bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

doc/{bash.1,bashref.texi}
	- word splitting: crib some language from Posix to make it clear that
	  characters in IFS are treated as field *terminators*, not field
	  *separators*.  Addresses issue raised by DJ Mills
	  <danielmills1@gmail.com>

lib/readline/{util.c,rldefs.h}
	- _rl_stricmp,_rl_strnicmp: now take const char * string arguments;
	  changed prototype declarations

				    9/5
				    ---
doc/{bash.1,bashref.texi}
	- [[: modify description of pattern matching to make it clear that the
	  match is performed as if the extglob option were enabled.  From Red
	  Hat bug https://bugzilla.redhat.com/show_bug.cgi?id=1002078

				   9/12
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: if we read an ESC and it's supposed to
	  terminate the search, make sure we check for typeahead with
	  _rl_pushed_input_available, since installing a hook function causes
	  typeahead to be collected in `ibuffer' (input.c).  If there is any,
	  make sure we still use the ESC as a prefix character.  Bug and fix
	  from Mike Miller <mtmiller@ieee.org>

				   9/16
				   ----
builtins/{caller,cd,kill,pushd,wait}.def
	- builtin_usage(): make sure call to this sets return status to
	  EX_USAGE

				   9/18
				   ----
terminal.c
	- rl_change_environment: new application-settable variable; if non-
	  zero (the default), readline will modify LINES and COLUMNS in the
	  environment when it handles SIGWINCH
	- _rl_get_screen_size: if rl_change_environment is non-zero, use setenv
	  to modify LINES and COLUMNS environment variables

readline.h
	- rl_change_environment: new extern declaration for applications

				   9/22
				   ----
configure.ac
	- relstatus: bumped version to bash-4.3-beta2

				   9/24
				   ----

lib/readline/readline.c
	- bind_arrow_keys_internal: added more key bindings for the numeric key
	  pad arrow keys on mingw32.  Patch from Pierre Muller
	  <pierre.muller@ics-cnrs.unistra.fr>

				   10/19
				   -----

bashline.c
	- maybe_restore_tilde: version of restore_tilde that honors `direxpand';
	  calls restore_tilde after saving directory expansion hook if
	  necessary.  Report from Andreas Schwab <schwab@linux-m68k.org>

builtins/cd.def
	- -@: new option, allows cd to use `extended attributes' present in
	  NFSv4, ZFS; idea taken from ksh93.  Attributes associated with a
	  file are presented as a directory containing the attributes as
	  individual files.  Original patch contributed by Cedric Blancher
	  <cedric.blancher@gmail.com>

				   10/20
				   -----
aclocal.m4
	- BASH_CHECK_MULTIBYTE: check for wcwidth being broken with unicode
	  combining characters needs a value to use when cross-compiling.
	  Bug report from Bert Sutherland <bertsutherland@gmail.com>

doc/{bash.1,bashref.texi}
	- document new -@ option to cd builtin

				   10/28
				   -----
lib/glob/{{gmisc,glob}.c,glob.h}
	- extglob_pattern renamed to extglob_pattern_p, declared in glob.h

subst.c
	- expand_word_internal: typo fix: case to fix " $@\ " bug in bash-4.2
	  had a typo (& isexp instead of &&)

				   10/29
				   -----
input.c
	- getc_with_restart: make sure local_index and local_bufused are
	  reset to 0 before returning EOF, in case we are running an interactive
	  shell without line editing and ignoreeof is set.  Report and fix
	  from Yong Zhang <yong.zhang@windriver.com>

lib/readline/search.c
	- _rl_nsearch_init: take out extra third argument to rl_message; it
	  only matches prototype (and maybe format) in cases where
	  PREFER_STDARG and USE_VARARGS are both undefined, which is rare

				   10/31
				   -----
subst.c
	- process_substitute: when opening the named pipe in the child, open
	  without O_NONBLOCK to avoid race conditions.  Happens often on AIX.
	  Bug report and fix from Michael Haubenwallner
	  <michael.haubenwallner@salomon.at>

builtins/ulimit.def
	- RLIMIT_NTHR: if RLIMIT_PTHREAD is not defined, but RLIMIT_NTHR is,
	  use RLIMIT_NTHR (NetBSD)

				   11/5
				   ----
locale.c
	- set_default_locale_vars,set_locale_var: if TEXTDOMAINDIR has been
	  set, and default_dir has a non-null value, call bindtextdomain(3)
	  when TEXTDOMAIN is assigned a value.  Fixes problem reported by
	  Michael Arlt <qwertologe@googlemail.com>

				   11/6
				   ----
builtins/cd.def
	- cdxattr: only create synthetic pathname in `buf' if NDIRP argument
	  is non-null
	- change_to_directory: if we have specified -@ and cdxattr returns
	  failure, fail immediately.  Fixes bug reported by Joshuah Hurst
	  <joshhurst@gmail.com>

				   11/12
				   -----
redir.c
	- print_redirection: change r_err_and_out (&>) and its append form,
	  r_append_err_and_out (&>>) cases to separate redirection operator
	  from filename by a space, in case we have a process substitution.
	  Fixes bug reported by admn ombres <admn.ombres@gmail.com>

				   11/15
				   -----
execute_cmd.c
	- execute_simple_command: don't close process substitution fds until
	  we are finished executing any current shell function.  Partial fix
	  for bug reported by John Dawson <john.dawson@gmail.com>

support/shobj-conf
	- add support for Darwin 13 (Mac OS X 10.9, Mavericks).  Based on a
	  report by Ludwig Schwardt <ludwig.schwardt@gmail.com>

				   11/20
				   -----
[bash-4.3-rc1 frozen]

				   11/24
				   -----
builtins/printf.def
	- bind_printf_variable: make sure that the variable assigned to is
	  no longer marked as invisible. Fixes bug reported by NBaH
	  <nbah@sfr.fr>

				   11/28
				   -----
jobs.c
	- delete_old_job: fix off-by-one error in job index in call to
	  internal_warning. Bug report from Peter Cordes <peter@cordes.ca>

				   11/30
				   -----
doc/bashref.texi
	- add string to description of special parameters with name of
	  special parameter prefixed by a $, so you can search for $#,
	  for instance

				   12/2
				   ----
lib/readline/{histexpand.c
	- get_history_event: account for current_history() possibly returning
	  NULL. Report and fix from Pankaj Sharma <pankaj.s01@samsung.com>


				   12/11
				   -----

lib/readline/parse-colors.c
	- get_funky_string: don't call abort if we see something we can't
	  parse; just return an error
	- _rl_parse_colors: if we encounter an error while parsing $LS_COLORS
	  we need to leave _rl_color_ext_list as NULL after freeing its
	  elements, then turn off _rl_colored_stats. Report and fix from Martin
	  Wesdorp <mwesdorp@casema.nl>

				   12/13
				   -----

lib/readline/parse-colors.c
	- _rl_parse_colors: if we encounter an unrecognized prefix, throw an
	  error but try to recover and go on to the next specification

variables.c
	- make_local_variable: for new variables this function creates, set
	  the att_invisible attribute.  All callers from declare_internal.
	  Indirectly, this is a fix for bug with `declare -n var; var=foo;'
	  reported by Pierre Gaston <pierre.gaston@gmail.com>
	- bind_variable: if assigning to nameref variable that doesn't have
	  a value yet (e.g., with `declare -n var; var=foo'), don't try to
	  use the unset name. Fixes a segfault reported by Pierre Gaston
	  <pierre.gaston@gmail.com>

execute_cmd.c
	- execute_command_internal: make sure last_command_exit_value is set
	  to 0 after any command executed in the background.  Fixes bug
	  reported by Martin Kealey <martin@kurahaupo.gen.nz>

				   12/17
				   -----
support/config.{guess,sub}
	- updated to latest versions from git

				   12/19
				   -----
parse.y
	- struct STRING_SAVER: now has a new `flags' element, to identify the
	  caller: alias expansion, double-paren parsing, or parse_and_execute
	- push_string: now sets flags to PSH_ALIAS if `ap' argument is non-NULL
	- push_string: now doesn't attempt to call strlen on a NULL string to
	  set shell_input_line_size
	- parser_expanding_alias, parser_save_alias, parser_restore_alias: new
	  functions to provide an external interface to push_string and
	  pop_string; parser_save_alias sets flags element to PSH_SOURCE (could
	  be renamed PSH_EXTERN someday)
	- shell_getc: when yy_getc returns '\0', instead of just testing
	  whether the pushed_string_list is not-empty before popping it, don't
	  pop if if the saved string has flags PSH_SOURCE, indicating that
	  parse_and_execute set it before setting bash_input to the string.
	  We should continue reading to the end of that string before popping
	  back to a potential alias. Partial solution for the problem of aliases
	  with embedded newlines containing `.' commands being executed out of
	  order reported by Andrew Martin <andrew.martin@gmail.com>
	- shell_getc: when yy_getc returns '\0' and there is a saved string of
	  type PSH_SOURCE, restart the read without popping the string stack
	  if we have not read to the end of bash_input.location.string.  Rest
	  of fix for out-of-order execution problem

externs.h
	- parser_expanding_alias, parser_save_alias, parser_restore_alias: new
	  extern function declarations

builtins/evalstring.c
	- pe_prologue: if the parser is expanding an alias, make sure to add
	  an unwind-protect to restore the alias; undoes the work that will be
	  performed by parse_and_execute/parse_string
	- parse_and_execute,parse_string: after calling push_stream to save
	  bash_input, check whether or not the parser is currently expanding
	  an alias (parser_expanding_alias() != 0). If it is, we want to save
	  that string in the pushed_string_list, which we do with
	  parser_save_alias.

				   12/23
				   -----
execute_cmd.c
	- execute_for_command: make sure to set line_number before expanding
	  the word list, so expansion errors have the right line number.
	  From a report from Ben Okopnik <ben@okopnik.com>

expr.c
	- exp2: save token pointer before calling readtok(), arrange to use
	  saved token pointer when printing error token on a division by 0
	  error

				   12/27
				   -----
lib/readline/display.c
	- rl_redisplay: when calculating effects of invisible characters in a
	  prompt that is split across physical screen lines to set the indices
	  of linebreaks, don't bother testing local_prompt_prefix (line 751).
	  That prefix doesn't matter when calculating prompt visible and
	  invisible characters.  Fixes problem reported by Jinesh Choksi
	  <jinesh@onelittlehope.com>

Makefile.in
	- install: make sure to use $(DESTDIR) when installing OTHER_DOCS.
	  Report and fix from Matthias Klose <doko@debian.org>

doc/texinfo.tex
	- updated to version of 2013-09-11

				   12/28
				   -----
lib/readline/undo.c
	- rl_do_undo: if we are undoing from a history entry (rl_undo_list ==
	  current_history()->data), make sure the change to rl_line_buffer is
	  reflected in the history entry. We use the guts of
	  rl_maybe_replace_line to do the work.  Fixes problem reported by
	  gregrwm <backuppc-users@whitleymott.net>

				   12/30
				   -----
sig.c
	- sigint_sighandler: if we get a SIGINT (and this signal handler is
	  installed) while the wait builtin is running, note that we received
	  it in the same way as jobs.c:wait_sigint_handler and return.  The
	  various wait_for functions will look for that with CHECK_WAIT_INTR.
	  This fixes the wait builtin not being interruptible in an interactive
	  job control shell

				   12/31
				   -----
trap.c
	- set_signal_hard_ignored: rename set_signal_ignored to this, since it
	  both sets original_signals[sig] and sets the HARD_IGNORE flag
	- set_signal_ignored: new function, now just sets original_signals[sig]

trap.h
	- set_signal_hard_ignored: new external declaration

sig.c
	- initialize_terminating_signals: call set_signal_hard_ignored instead
	  of set_signal_ignored for signals with disposition SIG_IGN when the
	  shell starts

execute_cmd.c
	- setup_async_signals: make sure we get the original dispositions for
	  SIGINT and SIGQUIT before starting the subshell, and don't call
	  set_signal_ignored  because that sets original_signals[sig].  If we
	  don't, subsequent attempts to reset handling using trap will fail
	  because it thinks the original dispositions were SIG_IGN. Posix
	  interpretation 751 (http://austingroupbugs.net/view.php?id=751)

				 1/2/2014
				 --------
lib/sh/stringvec.c
	- strvec_mcreate, strvec_mresize: versions of create and resize that
	  use malloc and realloc, respectively, instead of xmalloc/xrealloc

braces.c
	- expand_amble,mkseq: use strvec_mcreate/strvec_mresize so we can
	  catch and handle memory allocation failures instead of aborting
	  with the xmalloc/xrealloc interface

lib/sh/strdup.c
	- strdup replacement function for ancient systems that don't have it

lib/sh/itos.c
	- mitos: new function, itos that uses strdup instead of savestring

externs.h
	- strvec_mcreate/strvec_mresize: new extern declarations
	- mitos: new extern declaration

configure.ac
	- bash version moved to 4.3-rc2

				    1/6
				    ---
doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
	- separate the description of what happens when readline reads the
	  tty EOF character from the description of delete-char, leaving a
	  note in the delete-char description about common binding for ^D.
	  From suggestion by Parke <parke.nexus@gmail.com>

lib/readline/doc/{version.texi,history.3,*.texi}
	- updated email addresses and copyright dates

				    1/7
				    ---
variables.c
	- delete_var: new function, just removes a variable from a hash table
	  and frees it, without doing anything else
	- make_variable_value: if we are trying to assign to a nameref variable,
	  return NULL if the value is null or the empty string or not a valid
	  identifier

variables.h
	- delete_var: new extern declaration

subst.h
	- ASS_NAMEREF: new define for assignments, means assigning to a nameref
	  variable

builtins/declare.def
	- declare_internal: if we are creating and assigning to a nameref
	  variable, make sure the value is a valid variable name (checks done
	  by make_variable_value via bind_variable_value) and display an
	  error message, deleting the variable we just created, if it is not.
	  Fixes bug reported by Peggy Russell <prusselltechgroup@gmail.com>

				    1/9
				    ---
builtins/declare.def
	- declare_internal: turning on nameref attribute for an existing
	  variable turns off -i/-l/-u/-c attributes (essentially the ones
	  that cause evaluation at assignment time) for ksh93 compat

builtins/setattr.def
	- show_name_attributes: if asked to display attributes and values for
	  a nameref variable, don't follow the nameref chain to the end. More
	  ksh93 compat

				   1/10
				   ----
trap.c
	- _run_trap_internal: use {save,restore}_parser_state instead of
	  {save,restore}_token_state, like in run_pending_traps(); don't
	  need to save and restore last_command_exit_value as a result
	- _run_trap_internal: call {save,restore}_pipeline like in
	  run_pending_traps()
	- run_pending_traps: since we no longer run traps in a signal handler
	  context, do not block and unblock the trapped signal while the
	  trap is executing
	- run_pending_traps: allow recursive invocations (basically, running
	  traps from a trap handler) with only a warning if the shell is
	  compiled in debug mode.  If a caller doesn't want this to happen,
	  it should test running_trap > 0. signal_in_progress (sig) only works
	  for the signals the shell handles specially

bashline.c
	- bash_event_hook: make sure we clean up readline if interrupt_state
	  is set, not only when SIGINT is not trapped.  check_signals_and_traps
	  will call check_signals, which calls QUIT, which will longjmp back
	  to top_level, running the interrupt trap along the way.  Fixes the
	  problem of signal handlers being reset out from under readline, and
	  not being set properly the next time readline is called, because
	  signals_set_flag is still set to 1.  XXX - might need to do this
	  for other signals too?

				   1/11
				   ----
subst.h
	- SD_GLOB: new define for skip_to_delim; means we are scanning a
	  glob pattern.

subst.c
	- skip_to_delim: if flags include SD_GLOB, assume we are scanning a
	  glob pattern.  Currently only used to skip bracket expressions
	  which may contain one of the delimiters

				   1/12
				   ----
subst.c
	- parameter_brace_expand: when expanding $@ as part of substring
	  expansion, pattern substitution, or case modification, don't turn
	  on the QUOTED_NULL flag.  The code that constructs the word to be
	  returned from expand_word_internal expects a different code path
	  when $@ is being expanded.  Fixes bug reported by Theodoros
	  V. Kalamatianos <thkala@gmail.com>

				   1/19
				   ----
subst.c
	- list_dequote_escapes: new function; analogue of list_quote_escapes

pathexp.c
	- quote_string_for_globbing: fix case where unescaped ^A is last char
	  in string; need to pass it through unaltered instead of turning it
	  into a bare backslash
	- quote_string_for_globbing: when quoting for regexp matching in [[,
	  don't treat backslash as a quote character; quote the backslash as
	  any other character.  Part of investigation into reports from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   1/25
				   ----
builtins/gen-helpfiles.c
	- write_helpfiles: add prototype
	- make sure to #undef xmalloc/xfree/xrealloc/free if USING_BASH_MALLOC
	  is defined. the code does not use them, and we don't link against
	  xmalloc.o. Report from Linda Walsh <bash@tlinx.org>

Makefile.in
	- variables.o: add dependency on builtins/builtext.h; helps with
	  parallel builds.  Report from Linda Walsh <bash@tlinx.org>

support/shobj-conf
	- darwin: combine the stanzas into one that will not require them to
	  be updated on each Mac OS X release.  Report and fix from Max Horn
	  <max@quendi.de>

				   1/27
				   ----
support/shobj-conf
	- darwin: changed the install_name embedded into the shared library
	  to contain only the major version number, not the minor one. The
	  idea is that the minor versions should all be API/ABI compatible,
	  and it is better to link automatically with the latest one.  Idea
	  from Max Horn <max@quendi.de>

				   1/29
				   ----
[bash-4.3-rc2 released]

				   1/30
				   ----
lib/readline/readline.h
	- rl_clear_history, rl_free_keymap: add extern declarations.  Report
	  from Hiroo Hayashi <hiroo.hayashi@computer.org>

general.c
	- include trap.h for any_signals_trapped() prototype

lib/sh/unicode.c
	- include <stdio.h> for sprintf prototype

				   1/31
				   ----
execute_cmd.c
	- execute_simple_command: only posix-mode shells should exit on an
	  assignment failure in the temporary environment preceding a special
	  builtin. This is what the documentation and code comments have
	  always said
	- execute_simple_command: make sure redirection errors, word expansion
	  errors, and assignment errors to Posix special builtins cause a
	  non-interactive posix mode shell to exit.  Previously the shell
	  would not exit if the failed special builtin was on the LHS of ||
	  or &&

pathexp.c
	- quote_string_for_globbing: when quoting a regular expression
	  (QGLOB_REGEXP), allow an unquoted backslash to pass through
	  unaltered. Don't use it as a quote character or quote it.  More
	  investigation from 1/24 and report by Mike Frysinger
	  <vapier@gentoo.org>
	- quote_string_for_globbing: when quoting a regular expression
	  (QGLOB_REGEXP), turn CTLESC CTLESC into CTLESC without adding a
	  backslash to quote it. We should not have to quote it because it is
	  not a character special to EREs. More investigation from 1/24

lib/glob/glob.c
	- glob_testdir: now takes a second flags argument (currently unused);
	  changed prototype and callers

				    2/1
				    ---
lib/glob/glob.c
	- glob_testdir: if flags argument includes GX_ALLDIRS (globstar), use
	  lstat so we skip symlinks when traversing the directory tree.
	  Originally reported by Chris Down <chris@chrisdown.name>

				    2/2
				    ---
lib/readline/undo.c
	- rl_do_undo: make sure CUR is non-zero before dereferencing it to
	  check cur->data against rl_undo_list.  Report and fix from
	  Andreas Schwab <schwab@linux-m68k.org>

doc/{bash.1,bashref.texi}
	- added slight clarifying language to the description of $*,
	  describing what happens when the expansion is not within double
	  quotes

				    2/4
				    ---
test.c
	- unary_test: add code to -v case so that it interprets `bare' array
	  references (foo[1]) and returns true if that index has a value

				    2/5
				    ---
trap.c
	- restore_default_signal: fix SIGCHLD special case for SIG_TRAPPED flag
	  off but SIG_INPROGRESS mode set and handler IMPOSSIBLE_TRAP_HANDLER;
	  continue with resetting handler in this case. maybe_set_sigchld_trap
	  will check these things before resetting sigchld trap from
	  run_sigchld_trap.  Fixes (apparently long-standing?) problem reported
	  by Alexandru Damian <alexandru.damian@intel.com>

				    2/6
				    ---
lib/sh/strtrans.c
	- ansic_quote: fixed a bug when copying a printable character that
	  consumes more than one byte; byte counter was not being incremented.
	  Bug report from jidanni@jidanni.org

				    2/7
				    ---
input.c
	- getc_with_restart: if read(2) returns -1/EINTR and interrupt_state or
	  terminating_signal is set (which means QUIT; will longjmp out of this
	  function), make sure the local buffer variables are zeroed out to
	  avoid reading past the end of the buffer on the next call.  Bug report
	  from Dan Jacobson <jidanni@jidanni.org>

				    2/9
				    ---
bashline.c
	- command_word_completion_function: if a directory in $PATH contains
	  quote characters, we need to quote them before passing the candidate
	  path to rl_filename_completion_function, which performs dequoting on
	  the pathname it's passed.  Fixes bug reported by Ilyushkin Nikita
	  <ilyushkeane@gmail.com>

				   2/11
				   ----
parse.y
	- xparse_dolparen: save and restore shell_eof_token around call to
	  parse_string, intead of just leaving it set to ')'
	- shell_getc: when -v is set, only print the command line when
	  shell_eof_token is 0, so we don't print it multiple times when
	  recursively entering the parser to parse $(...) commands.  Fixes
	  bug reported by Greg Wooledge <wooledg@eeg.ccf.org>

[changed release status to 4.3-release]

				   2/13
				   ----
lib/sh/strtrans.c
	- ansic_quote: handle case where mbrtowc reports that the multibyte
	  sequence is incomplete or invalid.  Fixes bug reported by
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   2/14
				   ----
variables.c
	- find_variable_nameref_context: fix a problem that caused the loop
	  to go one context too close to the global context.  In some cases,
	  simple variable assignment would set a variable in the global
	  context instead of a local context.  Bug report from
	  Geir Hauge <geir.hauge@gmail.com>

				   2/26
				   ----
[bash-4.3 released]

				   2/27
				   ----
aclocal.m4
	- broken wcwidth check: fix typo reported by David Michael
	  <fedora.dm0@gmail.com>

				   2/28
				   ----
support/bashbug.sh
	- add ${BUGADDR} to error message printed if sending mail fails

trap.c
	- _run_trap_internal: don't call {save,restore}_pipeline if running
	  DEBUG trap; run_debug_trap calls them itself.  Fixes bug reported
	  by Moe Tunes <moetunes42@gmail.com>

test.c
	- unary_test: fix 'R' case by using find_variable_noref instead of
	  find_variable
	- test_unop: add back missing 'R' case.  Fixes bug reported by
	  NBaH <nbah@sfr.fr>

				    3/2
				    ---
jobs.c
	- end_job_control: if job control is active, we changed the terminal's
	  process group, so make sure we restore it.  Fixes bug reported by
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				    3/7
				    ---
pcomplete.c
	- pcomp_curtxt: new variable, holds the original text to be completed
	  as passed to the programmable completion code
	- pcomp_filename_completion_function: if we are running compgen
	  (presumably in a shell function completion) and performing readline
	  completion, check the word being completed.  If it's not empty, but
	  the original word passed to the programmable completion code is an
	  empty string (""), call a dequoting function if one is available.
	  This compensates for an assumption in bash-completion.  Reported by
	  Albert Shih <Albert.Shih@obspm.fr>

lib/readline/readline.c
	- _rl_dispatch_subseq: when deciding whether or not to set vi mode's
	  idea of the last command, use whether or not the dispatching keymap
	  is vi_movement_keymap instead of the key sequence length.  The `c',
	  `d', and `y' commands all take motion commands as `arguments' and
	  will produce key sequences longer than 1 character.  The arrow keys
	  will end up dispatching out of a different keymap, so the test will
	  prevent arrow keys from setting the last command (the problem in
	  bash-4.2). Bug report from Daan van Rossum <daan@flash.uchicago.edu>

lib/readline/vi_mode.c
	- _rl_vi_motion_command: convenience function to test whether a key is
	  a vi-mode motion command

lib/readline/rlprivate.h
	- _rl_vi_motion_command: extern declaration

parse.y
	- parse_matched_pair: we should not skip processing single quotes in
	  posix mode if dolbrace_state == DOLBRACE_QUOTE2 (pattern
	  substitution).  Fixes bug reported by David Sines
	  <dave.gma@googlemail.com>

				   3/10
				   ----
lib/readline/readline.c
	- _rl_dispatch_callback: treat a return value of -1 as the end of
	  a command dispatch sequence if the current context doesn't
	  indicate that we're reading a multi-key sequence
	  ((cxt->flags & KSEQ_SUBSEQ) == 0).  Turn off the multikey flag
	  and free the context chain in this case.  Fixes one bug reported
	  by Felix Yan <felixonmars@gmail.com> to bug-readline list
	- _rl_dispatch_callback: treat a return value of > 0 the same as 0
	  and return from the function, since only values < 0 cause us to
	  simulate recursion.  Rest of fix for bug tracked down by
	  Anatol Pomozov <anatol.pomozov@gmail.com>

				   3/11
				   ----

execute_cmd.c
	- execute_in_subshell: if a longjmp occurs, set result to
	  EXECUTION_FAILURE only if last_command_exit_value == EXECUTION_SUCCESS;
	  use value of last_command_exit_value otherwise.  Fixes cosmetic
	  issue reported by Dennis Lambe Jr. <malsyned@malsyned.net>

doc/bash.1
	- shell-kill-word and shell-backward-kill-word should be documented
	  as unbound by default.  Report from Oliver Hartley
	  <ohartley@talktalk.net>

trap.c
	- run_pending_traps: save value of $? before running trap commands in
	  trap_saved_exit_value, like run_exit_trap
	- _run_trap_internal: save value of $? before running trap commands in
	  trap_saved_exit_value, like run_exit_trap

builtins/common.c
	- get_exitstat: when running `return' in a trap action, and it is not
	  supplied an argument, use the saved exit status in
	  trap_saved_exit_value.  Fixes Posix problem reported by
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   3/13
				   ----
lib/sh/shquote.c
	- sh_contains_quotes: new function, returns true if a given string
	  contains any of the shell quote characters (single quote, double
	  quote, or backslash)

externs.h
	- sh_contains_quotes: new extern declaration

pcomplete.c
	- pcomp_filename_completion_function: more changes for the benefit of
	  bash-completion: if the argument is not the same as the original
	  argument passed to the programmable completion code (pcomp_curtxt),
	  and we are being run by compgen as part of a completion, dequote the
	  argument as bash-completion expects.  Fix for the complete-word-
	  with-quoted-special-chars problem with bash-completion

				   3/17
				   ----
execute_cmd.c
	- execute_intern_function: when in posix mode, make defining a function
	  with the same name as a special builtin a fatal error only when the
	  shell is not interactive. Interactive shells display an error
	  message and go on.  From a discussion with Doug McIlroy
	  <doug@cs.dartmouth.edu>

				   3/18
				   ----
arrayfunc.c
	- assign_compound_array_list: when using expand_assignment_string_to_string
	  to expand the value in a ( [x]=y ) compound assignment, make sure
	  that we convert 0x0 to "" when expanding [x]= so it doesn't appear as
	  if the index is unset.  Fixes bug reported by Geir Hauge
	  <geir.hauge@gmail.com>

builtins/common.c
	- get_exitstat: update fix of 3/11 to allow the DEBUG trap to use the
	  current value of $? instead of the value it had before the trap
	  action was run.  This is one reason the DEBUG trap exists, and
	  extended debug mode uses it.  Might want to do this only in Posix
	  mode

doc/{bash.1,bashref.texi}
	- return: add language cribbed from Posix saying what happens when
	  return is run without an argument from a trap, including the DEBUG
	  trap exception

				   3/19
				   ----
lib/glob/gmisc.c
	- extglob_pattern_p: make sure ?(patlist) is flagged as an extglob
	  pattern

lib/glob/glob.c
	- extglob_skipname: rewrite to handle patterns that begin but do not
	  end with an extglob pattern; change test for easy case and loop
	  through patterns accordingly.  Fixes problem with matching filenames
	  with a leading dot reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>
	- wextglob_skipname: make analogous changes

				   3/20
				   ----
Makefile.in
	- pass -DDEBUG down to builds in readline and history directories

lib/readline/util.c
	- _rl_trace and related functions are now only compiled in if DEBUG
	  is defined

lib/readline/Makefile.in
	- substitute @DEBUG@ and pass -DDEBUG, if necessary, to compilation
	  in LOCAL_CFLAGS

				   3/21
				   ----
parse.y
	- shell_getc: when checking whether or not to reallocate
	  shell_input_line to add trailing newline, don't try to subtract from
	  shell_input_line_size.  size_t is unsigned, so if its value is less
	  than 3 (like, say, 2), size-3 is a very large number and the string
	  will not be reallocated.  Use len+3 > size instead of len > size-3.
	  Fixes bug reported in
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1295467

				   3/27
				   ----
lib/readline/display.c
	- _rl_clean_up_for_exit: don't bother to call _rl_move_vert to whatever
	  readline thinks the last displayed line is if it's 0.  Two reasons: a
	  minor optimization, and it protects against unwanted moving if this
	  function is called twice, as it is when ^C is pressed.  Fixes bug
	  reported by Egmont Koblinger <egmont@gmail.com>

				   3/28
				   ----
bashline.c
	- invalid_completion: new function, used to identify attempts to
	  complete words that are syntax errors
	- attempt_shell_completion: if invalid_completion returns true for a
	  word in a command position, punt on all completions.  Fixes cosmetic
	  issue reported by Uwe Storbeck <uwe@ibr.ch>
	- attempt_shell_completion: add clause so that in_command_position
	  remains set to 1 for an empty word following a command separator like
	  (, &, or |

lib/readline/kill.c
	- rl_yank, rl_yank_nth_arg_internal: don't return -1 from bindable
	  functions, return 1 instead

lib/readline/text.c
	- rl_rubout, _rl_rubout_char, rl_delete, rl_change_case,
	  rl_transpose_chars, rl_transpose_words, _rl_set_mark_at_pos,
	  rl_exchange_point_and_mark, _rl_insert_next, _rl_char_search,
	  _rl_char_search_internal:
	  don't return -1 from bindable functions, return 1 instead

lib/readline/vi_mode.c
	- rl_vi_end_word, rl_vi_rubout, rl_vi_delete, rl_vi_char_search,
	  rl_vi_match, _rl_vi_set_mark, _rl_vi_goto_mark:
	  don't return -1 from bindable functions, return 1 instead

lib/readline/macro.c
	- rl_start_kbd_macro, rl_end_kbd_macro:
	  don't return -1 from bindable functions, return 1 instead

builtins/setattr.def
	- set_var_attribute: honor setting of no_invisible_vars when setting
	  att_invisible on a variable
	- include "../flags.h" for no_invisible_vars

builtins/declare.def
	- declare_internal: honor setting of no_invisible_vars when setting
	  att_invisible on a variable
	- include "../flags.h" for no_invisible_vars

Makefile.in,builtins/Makefile.in
	- make sure declare.o and setattr.o depend on flags.h

execute_cmd.c
	- decpoint: new function, returns locale's decimal point or `.' default
	- mkfmt: use decpoint() to get decimal point instead of unconditionally
	  using `.'.  Fixes bug reported by Andrey Tataranovich
	  <tataranovich@gmail.com> in debian bug 741669

				   4/10
				   ----
lib/readline/rltypedefs.h
	- add back old Function/VFunction/etc typedefs, since other packages
	  (python, samba) use them. Mark as deprecated using gcc and clang
	  attributes.  Report and fix from Max Horn <max@quendi.de>

				   4/14
				   ----
jobs.c
	- run_sigchld_trap: unwind-protect value of this_shell_builtin, since
	  it matters in some cases whether or not we are running `wait' or
	  `eval'.  Fixes bug reported by Eduardo A. Bustamante LÃ³pez
	  <dualbus@gmail.com>

				   4/18
				   ----
shell.h
	- sh_parser_state_t: add `need_here_doc' flags member, since
	  xparse_dolparen (via parse_command) sets it to 0

parse.y
	- gather_here_documents: make sure need_here_doc is > 0, since we
	  don't want to just decrement it forever if it ends up < 0. Partial
	  fix for bug reported by Jared Yanovich <slovichon@gmail.com>
	- {save,restore}_parser_state: save and restore need_here_doc flag.
	  Rest of fix for bug reported by Jared Yanovich <slovichon@gmail.com>

				   4/19
				   ----
subst.c
	- cond_expand_word: since we are not supposed to be performing word
	  splitting here, set expand_no_split_dollar_star to 1 in addition to
	  setting W_NOSPLIT2
	- expand_word_internal: if we have a case where we have an unquoted
	  $@ but we are in a case where we don't want to split (W_NOSPLIT2),
	  make sure we return a list consisting of a single word with the
	  arguments separated by spaces and don't do word splitting.  Fixes
	  bug reported by Greg Wooledge <wooledg@eeg.ccf.org> from an IRC
	  discussion

builtins/hash.def
	- print_portable_hash_info: single-quote pathnames and hashed filenames
	  that contain shell metacharacters.  Fixes bug reported by
	  <g1pi@libero.it> in debian bash bug #739853

				   4/20
				   ----
lib/readline/display.c
	- When using horizontal scrolling, the redisplay code erases too much
	  of the line containing successful results, so make sure we only
	  erase to the end of the line after making sure we move the cursor
	  to the end.  Fixes bug reported by <Trond.Endrestol@ximalas.info>

				   4/23
				   ----
{bashhist,bashline}.c
builtins{bind,help,type}.def
lib/glob/glob.c, lib/intl/{loadmsgcat,localealias}.c,lib/sh/mktime.c
	- fixes to memory leaks uncovered by coverity scan

				   4/24
				   ----
{bashhist,subst,redir,assoc,jobs,array,trap}.c
lib/intl/l10flist.c
builtins/complete.def
	- fixes to memory leaks and other resource usage problems uncovered by
	  coverity scan

redir.c
	- do_redirection_internal: if dup2 fails (presumably because of a
	  resource limit), close the file descriptor we opened before returning
	  error

				   4/25
				   ----
config-top.h
	- DEFAULT_BASHRC: new define with the name of the default shell
	  startup file

bashline.c
	- bash_directory_completion_matches: don't dequote the directory name.
	  If rl_completion_found_quote is non-zero, readline will dequote the
	  filename itself.  Fixes bug reported by Clark Wang
	  <dearvoid@gmail.com>

				   4/27
				   ----
subst.c
	- parameter_brace_expand_rhs: if parameter_brace_find_indir returns
	  NULL or "", or if it returns something that is not a valid identifier,
	  report an error and return &expand_wdesc_error so the error can
	  propagate up.  Fixes bug reported by Andre Holzhey
	  <andre.holzhey@gmx.de>

				   4/29
				   ----
subst.c
	- parameter_brace_substring: don't short-circuit right away if the
	  value is NULL but we are looking at the positional parameters.  Part
	  of fix for bug reported by Pierre Gaston <pierre.gaston@gmail.com>
	- pos_params: if there are no positional parameters, only short-circuit
	  if we are looking for $1 and above.  Rest of fix for bug reported
	  by Pierre Gaston <pierre.gaston@gmail.com>

subst.h
	- SD_NOPROCSUB: new flag for skip_to_delim, means to not allow any
	  process subsitutions (should not have overloaded SD_NOSKIPCMD)

subst.c
	- skip_to_delim: honor SD_NOPROCSUB flag

make_cmd.c
	- make_arith_for_expr: set W_NOPROCSUB flag in the created word
	- make_arith_for_command: set SD_NOPROCSUB in the flags argument to
	  skip_to_delim so we don't treat <( or >( as a process substitution
	  (we won't evaluate them in eval_arith_for_expr anyway).  Fixes
	  bug reported by Pierre Gaston <pierre.gaston@gmail.com>

				    5/1
				    ---
lib/glob/gmisc.c
	- glob_dirscan: new function, takes a pattern and a directory separator
	  argument and advances the pattern to the last occurrence of the
	  separator. Like strrchr, but understands extended glob patterns and
	  uses glob_patscan to skip over them

lib/glob/glob.c
	- extglob_skipname: if the extended globbing pattern is invalid, don't
	  skip the name
	- glob_filename: if there is a slash in the pattern to be matched, and
	  extglob is enabled, use glob_dirscan to find the real last occurrence
	  of `/' to avoid being confused by slashes in extglob patterns.  Fix
	  for bug reported by Pierre Gaston <pierre.gaston@gmail.com>

				    5/6
				    ---
variables.c
	- make_local_variable: only set the att_invisible attribute if
	  no_invisible_vars isn't set
	- find_variable_for_assignment: new function, intended to be called by
	  code that eventually wants to assign a value to the variable; will not
	  skip invisible variables; currently identical to find_variable
	- find_variable_no_invisible: new function, finds the first visible
	  instance of variable with a given name in the variable context chain;
	  eventually will be used to replace find_variable; separate right now
	  for testing

variables.h
	- find_variable_for_assignment: extern declaration
	- find_variable_no_invisible: extern declaration

				    5/7
				    ---
variables.c
	- make_local_variable: don't clear `invisible' attribute if we are
	  returning an existing local variable at the right context.  Let the
	  upper layers do that. Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

				    5/8
				    ---
lib/readline/input.c
	- rl_getc: call RL_CHECK_SIGNALS if a read(2) is interrupted (-1/EINTR)
	  by SIGALRM or SIGVTALRM (placeholder for non-keyboard-generated
	  signals of interest)

builtins/read.def
	- edit_line: call bashline_set_event_hook and
	  bashline_reset_event_hook around call to readline(), so the right
	  signal handling happens
	- read_builtin: make sure we add an unwind_protect call to
	  bashline_reset_event_hook.  These changes fix bug reported in
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1317476

bashline.c
	- bash_event_hook: make sure we clean up the readline state by calling
	  rl_cleanup_after_signal if sigalrm_seen is non-zero.  The read builtin
	  sets this when it times out

				   5/12
				   ----
doc/{bash.1,bashref.texi}
	- clarify language to make it clear that changing attributes of a
	  nameref variable (e.g., export), actually changes the attributes of
	  the referenced variable.  Fixes omission noted by Jeff Haemer
	  <jeffrey.haemer@gmail.com>

arrayfunc.c
	- bind_array_var_internal: make sure ENTRY no longer has invisible
	  attribute before returning.  Fixes bug reported by Geir Hauge
	  <geir.hauge@gmail.com>

				   5/22
				   ----
execute_cmd.c
	- shell_execve: if execve fails and we return 127 or 126, make sure to
	  set last_command_exit_value if a call to file_error or report_error
	  causes the shell to exit.  This ensures that the shell exits with
	  the right value.

				    6/6
				    ---
shell.c
	- drop_priv_mode: print an error message on setuid() failure, optionally
	  exit if errno == EAGAIN, as it can be on Linux when RLIMIT_NPROC for
	  the target user is exceeded.

config-top.h
	- EXIT_ON_SETUID_FAILURE: new settable define, will cause the shell to
	  exit if setuid fails with errno == EAGAIN

				   6/10
				   ----
parse.y
	- time_command_acceptable: fix so time is accepted everywhere the
	  grammar is looking for a `compound_list'.  Fixes bug reported by
	  Dale Worley <worley@alum.mit.edu>

				   6/12
				   ----
subst.c
	- clear_fifo_list: new function, clears FDs associated with open pipes
	  in current FIFO list without closing the file descriptors.  Can
	  possibly be used when shell_execve fails and the shell jumps back
	  to top_level and we don't want the shell to close the open FIFOs
	  each time through the read-execute loop.  Bug reported by Harald
	  Koenig <koenig@tat.physik.uni-tuebingen.de>


				   6/16
				   ----
builtins/shopt.def
	- compat42: make sure the `compat42' option sets the correct variable
	  for compatibility level.  Fixes bug reported by Ondrej Oprala
	  <ooprala@redhat.com>

support/bashbug.sh
	- fix typo when echoing $USAGE.  Report from Shantanu Kulkarni
	  <djbware@shantanukulkarni.org>

execute_cmd.c
	- shell_execve: before longjmp back to subshell_top_level, clear out the
	  FIFO fd list by calling clear_fifo_list so the FDs (which we inherited
	  from our parent) aren't closed every time through the read-eval loop.
	  Fix for bug reported by Harald Koenig <koenig@tat.physik.uni-tuebingen.de>

				   6/18
				   ----
subst.c
	- extract_process_subst: add additional argument: xflags, allow callers to
	  pass flags like extract_command_subst
	- extract_process_subst: call xparse_dolparen like command substitution
	  to avoid problems when parsing commands constructs with embedded open
	  parens.  Fixes bug reported by Tim Friske <me@timfriske.com>

subst.h
	- extract_process_subst: modified prototype for extern declaration

				   6/19
				   ----
execute_cmd.c
	- execute_pipeline: if running with lastpipe enabled, make sure that we
	  check whether or not the job id is valid using INVALID_JOB before
	  calling job_exit_status. the jobs list can get frozen and unfrozen in
	  the presence of nested pipelines and loops and wait_for can clear a
	  job table entry.  Fixes bug reported by <scorp.dev.null@gmail.com>

jobs.c
	- freeze_jobs_list: now returns old value of jobs_list_frozen; unused at
	  current time

jobs.h
	- freeze_jobs_list: change return value

				   6/20
				   ----
lib/glob/smatch.c
	- MEMCHR: single-byte and wide character defines (memchr/wmemchr)

lib/glob/sm_loop.c
	- GMATCH: when the wildcards are the last element of the pattern, make
	  sure they do not match a string containing a `/' if FNM_PATHNAME is
	  set in FLAGS
	- GMATCH: when recursively calling GMATCH after we see a `*', don't
	  try to consume the rest of the pattern with `*' if FNM_PATHNAME is
	  set in FLAGS, just consume up to the next slash and then see whether
	  or not the rest of the pattern matches.  Fixes bug reported by Ian
	  Kelling <ian@iankelling.org>
	- GMATCH: when processing `*' in the pattern, after skipping consecutive
	  wildcards, if we hit a literal `/' in the pattern and we're looking
	  for a pathname, skip characters in the string until we find a `/'
	  (no slash means the match fails), and try to match the rest of the
	  pattern against the portion of the string after the next `/'.  Picked
	  up from gnulib/glibc

pathexp.c
	- split_ignorespec: since split_ignorespec gets globbing patterns,
	  make sure we call skip_to_delim with the SD_GLOB flag so delimiters
	  that occur within bracket expressions don't delimit the pattern.
	  Fixes problem with [[:digit:]] in GLOBIGNORE reported by Ian Kelling
	  <ian@iankelling.org>

unwind_prot.c
	- unwind_protect_tag_on_stack: new function, returns 1 if unwind-protect
	  frame corresponding to `tag' argument is on unwind-protect stack

unwind_prot.h
	- unwind_protect_tag_on_stack: extern declaration

				   6/30
				   ----
lib/readline/misc.c
	- _rl_revert_all_lines: set entry->data to 0 after assigning it to
	  rl_undo_list to avoid pointer aliasing problems that would result
	  in entry->line being freed by an undo.  The subsequent free would
	  be a double free.  Report and fix from Jared Yanovich
	  <slovichon@gmail.com>

subst.c
	- command_substitute: other shells do not appear to inherit the -v
	  option when reading and executing command substitutions.  Reported
	  by Ondrej Oprala <ooprala@redhat.com>

				    7/1
				    ---
config-top.h
	- CHECKHASH_DEFAULT: new define that supplies the default value for
	  check_hashed_filenames (`checkhash' shopt option); still 0 by default

findcmd.c
	- check_hashed_filenames: initialize using CHECKHASH_DEFAULT

lib/readline/histexpand.c
	- history_expand: double quotes can inhibit recognition of the history
	  comment character if history_quotes_inhibit_expansion is non-zero

lib/readline/doc/{history.3,hstech.texi}
	- history_quotes_inhibit_expansion: expand definition to note that it
	  inhibits scanning for the history comment character as well; correct
	  typo to make it clear that it only works on double-quoted strings

lib/sh/zgetline.c
	- add new fourth argument: DELIM, allows delimiter to be something
	  other than newline (if DELIM != '\n', UNBUFFERED_READ should be
	  non-zero)
	- UNBUFFERED_READ is now fifth argument
	- check character against DELIM rather than strictly newline

externs.h
	- zgetline: change function prototype for extern declaration

builtins/mapfile.def
	- mapfile: change calling sequence for zgetline calls
	- mapfile_builtin: new -d option: DELIM, like in read builtin
	- mapfile_builtin: pass `delim' to mapfile() as new argument; default
	  to '\n' unless -d option supplied
	- mapfile: take new DELIM argument, pass to zgetline
	- mapfile: if DELIM != '\n', set unbuffered_read to 1

doc/{bash.1,bashref.texi}
	- mapfile: document new `-d DELIM' option

				    7/5
				    ---
lib/readline/histfile.c
	- history_truncate_file: if there is an error writing the truncated
	  history list back to the history file, use the same strategy as
	  history_do_write: create a backup file, rename the history file to
	  the backup file, and restore the original history file from the
	  backup file name if the write or the close fails.  Suggestion from
	  Chen Gang <gang.chen.5i5j@gmail.com> to bug-readline

execute_cmd.c
	- evalnest, evalnest_max: new variables establishing maximum number of
	  recursive `eval' calls; current max is 4096
	- execute_builtin: unwind-protect value of evalnest around calls to
	  eval builtin. Suggested by Oliver Morais <oliver.morais@gmail.com>
	- {initialize_subshell,execute_subshell_builtin_or_function}: reset
	  evalnest to 0 in a subshell

builtins/setattr.def
	- show_name_attributes: show a variable's attributes even if it's
	  invisible (don't show any value since it has none). This means that
	  declare -p var will display VAR's attributes even when var marked
	  as invisible.  Feature request from Peggy Russell
	  <prusselltechgroup@gmail.com>
	- show_var_attributes: don't print assignment if array or assoc
	  attribute is set but variable marked as invisible

tests/array.right
	- special note: changed all declare -a output tests because the shell
	  will no longer print out values for invisible array variables. This
	  is a change, but one for correctness:

		declare -a foo='()'
	  and
		declare -a foo
	  are not equivalent

				   7/22
				   ----
subst.c
	- parameter_brace_expand: after calling parameter_brace_expand_indir,
	  turn off the W_ARRAYIND flag in the word it returns, because there
	  is no way for it to return the index that should be used, and the
	  rest of the function assumes that IND is valid if W_ARRAYIND is set.
	  Fixes bug reported by Corentin Peuvrel <cpeuvrel@pom-monitoring.com>

				    8/2
				    ---
parse.y
	- read_token_word: if we read a character that will end a command
	  substitution, don't skip over quoted newlines when we read an
	  additional character to figure out whether it's a two-character
	  token. This lets the higher layers deal with quoted newlines after
	  the command substitution. Fixes bug reported by EmanueL Czirai
	  <amanual@riseup.net>

				   8/11
				   ----
execute_cmd.c
	- execute_pipeline: check whether lastpipe_jid corresponds to a valid
	  job before calling append_process, for the same reason as fix from
	  6/19.  Fixes bug reported by <lolilolicon@gmail.com>

				   8/12
				   ----
lib/sh/unicode.c
	- stub_charset: use strncpy instead of strcpy because we are copying
	  into a local fixed-length buffer.  Fixes vulnerability reported by
	  <romerox.adrian@gmail.com>

execute_cmd.c
	- execute_pipeline: if we don't call append_process, call
	  wait_for_single_pid to get the status of `lastpid', since that will
	  check the status of already-reaped processes.  Fixes spurious error
	  message about non-existent process from fix of 8/11

				   8/15
				   ----
jobs.c
	- running_in_background: new variable, keeps track of whether or not we
	  are running in the background (not perfect yet)
	- initialize_job_control: even if we are not turning on job control,
	  get the terminal pgrp so we can use it later
	- {set_job_control,initialize_job_control}: set running_in_background
	  to 1 if terminal pgrp != shell pgrp
	- {stop_pipeline,make_child,wait_for}: if we are running in the
	  background, don't mess with the terminal's process group; assume that
	  the parent shell will do that.  Fixes bug reported by Greg Wooledge
	  <wooledg@eeg.ccf.org>

shell.c
	- shell_reinitialize: reset running_in_background back to 0

				   8/24
				   ----
execute_cmd.c
	- {execute_connection,execute_command_internal}: make sure that
	  asynchronous commands always set $? to 0 and are not affected by the
	  command's exit status being inverted using `!'.  Fixes bug reported
	  by Vincent Lefevre <vincent@vinc17.net>

lib/readline/display.c
	- rl_message: call vsnprintf with full msg_bufsiz, since it counts 
	  one fewer than the buffer length passed as an argument.  Bug report
	  and fix from Dylan Cali <calid1984@gmail.com>

				   8/26
				   ----
builtins/evalstring.c
	- evalstring: if CURRENT_TOKEN == yacc_EOF, reset it to newline.  This
	  is instead of calling reset_parser(); that might still be needed.
	  Fixes bug with eval and a subsequent statement ending with EOF
	  reported by <jim.avera@gmail.org>

pcomplete.c
	- filter_stringlist: when extglob is on, a leading ! in the filter
	  pattern should be left alone when it introduces a !(pat) pattern;
	  otherwise it messes up the pattern.  Fixes bug reported by David
	  Korn <dgkorn@gmail.com>

				   8/27
				   ----
doc/{bash.1,bashref.texi}
	- clarify the behavior of bash when given the -c option, since $0 is
	  technically not a positional parameter.  Bug reported by Stephane
	  Chazelas <stephane.chazelas@gmail.com>

				   8/28
				   ----
lib/readline/history.c
	- add_history: use history_max_entries (if history is stifled) or
	  DEFAULT_HISTORY_INITIAL_SIZE if not (new define, defaults to 502)
	  to size the initial allocation of the history array.  Assumption
	  is that this will reduce the number of allocations

				   8/29
				   ----
execute_command.c:
	- sourcenest, sourcenest_max: new variables used to track level of
	  sourced files and (maybe) one day catch infinite source recursion
	- execute_builtin: if current source level exceeds sourcenest_max,
	  trigger an error and jump back to the top level
	- {initialize_subshell,execute_subshell_builtin_or_function}: reset
	  sourcenest to 0 in a subshell

				    9/2
				    ---
variables.c
	- bind_variable: if a nameref expands to an array reference, make
	  sure that assign_array_element gets called (maybe even
	  recursively) instead of bind_variable_internal, so invalid variable
	  names (like arr[0]) don't get created.  Fixes bug reported by
	  <lolilolicon@gmail.com>

				    9/3
				    ---
execute_cmd.c
	- evalnest_max,sourcenest_max: initialize from EVALNEST_MAX and
	  SOURCENEST_MAX, respectively.  Feature suggested by
	  <bogun.dmitriy@gmail.com>

config-top.h
	- define EVALNEST_MAX and SOURCENEST_MAX to 0

				    9/6
				    ---
bashline.c
	- find_cmd_start: fix to (crudely) deal with >| token; even though
	  skip_to_delim finds `|' as a delimiter, we call it again and use
	  what the second call finds.  Fixes bug reported by Dan Jacobson
	  <jidanni@jidanni.org>

findcmd.c
	- find_in_path_element: if in posix mode, do not expand a literal
	  tilde in a $PATH element

doc/bashref.texi
	- add change to tilde expansion in $PATH elements to posix mode
	  description

builtins/common.h
	- ISHELP: new define for builtins that do their own option parsing
	  and don't use internal_getopt(); checks whether argument is --help
	- CHECK_HELPOPT: convenience define to help builtins that do their
	  own option parsing to check for --help with one line of code
	- CASE_HELPOPT: convenience define to help builtins that use
	  internal_getopt() check for --help with one line of code

builtins/help.def
	- builtin_help: new function, prints out --help output for current
	  builtin

builtins/{kill,let,pushd}.def
	- add CHECK_HELPOPT to builtins that use ISOPTION; call builtin_help
	  and return EX_USAGE (kill/let/pushd/popd/dirs)

builtins/{caller,fg_bg}.def
	- use CHECK_HELPOPT to recognize --help, since these builtins perform
	  checks that can cause them to return before calling no_options
	  (caller/fg/bg)

builtins/{exit,return}.def
	- use CHECK_HELPOPT to recognize --help before calling get_exitstat()
	  (return/exit/logout)

builtins/{break,shift}.def
	- use CHECK_HELPOPT to recognize --help before any other checks
	  (break/continue/shift)

builtins/bashgetopt.h
	- GETOPT_EOF: convenience define
	- GETOPT_HELP: new define, to indicate internal_getopt saw --help

builtins/bashgetopt.c
	- internal_getopt: return GETOPT_HELP for --help

builtins/common.c
	- no_options: recognize --help, call builtin_help and return 2
	  (builtin/eval/source/./times)

builtins/command.def
	- use CASE_HELPOPT() to handle --help after calling internal_getopt()
	  (command)

builtins/{colon,echo,test}.def
	- do not recognize --help (:/true/false/echo/test)

				    9/8
				    ---
sig.c
	- termsig_sighandler: if readline is active now, set the bashline event
	  hook. Old code just set it for interactive shells.  Part of fix for
	  bug reported by <mickael9@gmail.com>

bashline.c
	- bash_event_hook: call rl_cleanup_after_signal if terminating_signal
	  is non-zero, since check_signals_and_traps() will cause the shell to
	  exit if it is and we want to clean up the readline state first.  Rest
	  of fix for bug reported by <mickael9@gmail.com>

				    9/9
				    ---
jobs.c
	- waitchld: when running the wait builtin in posix mode, with a trap set
	  on SIGCHLD, use queue_sigchld_trap instead of trap_handler (SIGCHLD),
	  otherwise you will lose SIGCHLDs when children_exited > 1.  Fixes bug
	  reported by <crispusfairbairn@gmail.com>

builtins/read.def
	- read_builtin: if we are changing the tty settings, call
	  initialize_terminating_signals so we have a chance to catch all
	  terminating signals and potentially clean up the terminal before
	  exiting
	- read_builtin: tty_modified: new variable, set to 1 if we change the
	  terminal attributes and have to call ttyrestore() to restore them
	- if one of the `reads' returns -1/EINTR due to a terminating signal,
	  and we have modified the terminal, call ttyrestore before calling
	  CHECK_TERMSIG
	- ttyrestore: set tty_modified to 0 when called

				   9/10
				   ----
builtins/read.def
	- termsave: now global to file so other functions can use it
	- read_tty_cleanup: if tty_modified is non-zero, call ttycleanup to
	  restore old terminal settings and turn off tty_modified

sig.c
	- termsig_handler: call read_tty_cleanup if currently executing read
	  builtin; it does the right thing.  Final piece of fix for bug reported
	  by Jan Rome <jan.rome@gmail.com>

				   9/11
				   ----
general.c
	- printable_filename: general function to return a printable
	  representation of a string (presumed to be a filename)

general.h
	- extern declaration for printable_filename

execute_cmd.c
	- execute_disk_command: use printable_filename

builtins/{bind,cd,enable,hash,source}.def
	- use printable_filename as appropriate when printing error messages.
	  From a suggestion by Vincent Lefevre <vincent@vinc17.net>

builtins/bind.def
	- use CASE_HELPOPT() to handle --help after calling internal_getopt()
	  (bind)

				   9/12
				   ----
builtins/common.h
	- SEVAL_FUNCDEF: new flag for parse_and_execute; it means that we only
	  accept a single function definition command, as when we are importing
	  functions from the environment
	- SEVAL_ONECMD: new flag for parse_and_execute; for future use

builtins/evalstring.c
	- parse_and_execute: if the SEVAL_FUNCDEF flag is set, disallow anything
	  but a function definition command

variables.c
	- initialize_shell_variables: don't allow functions with invalid names
	  to be imported from the environment, even though we still allow them
	  to be defined
	- initialize_shell_variables: when importing function definitions from
	  the environment, call parse_and_execute with the SEVAL_FUNCDEF flag
	  to force the command to be just a function definition

subst.c
	- param_expand: when expanding a $name variable expansion, make sure that
	  the variable is visible and set before following the nameref chain
	- param_expand: when expanding a $name variable expansion and following the
	  nameref chain, make sure the resulting variable is visible and set
	  before using it

				   9/13
				   ----
variables.c
	- initialize_shell_variables: when importing function definitions from
	  environment, use SEVAL_ONECMD flag for parse_and_execute.  Part of
	  CVE-2014-6271

builtins/evalstring.c
	- parse_and_execute: if SEVAL_ONECMD flag set, return immediately after
	  calling execute_command_internal.  Final piece for fix for bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>.  Part of
	  CVE-2014-6271

				   9/24
				   ----
parse.y
	- reset_parser: reset eol_ungetc_lookahead to 0 here, since we don't want
	  shell_getc returning it on the next call.  Fixes problem reported by
	  Tavis Ormandy <taviso@cmpxchg8b.com> and Michal Zalewski
	  <lcamtuf@coredump.cx>.  Potentially part of CVE-2014-6271; fix for
	  CVE-2014-7169

				   9/25
				   ----
parse.y
	- push_heredoc: new function, pushes a here-doc redirection onto
	  redir_stack handling overflow of redir_stack. Exits on overflow.
	  Original fix from Florian Weimer <fweimer@redhat.com>.  Fix for
	  CVE-2014-7186
	- change straight assignments to redir_stack to call push_redir
	- add one to size of word_lineno stack to avoid off-by-one error
	  below in read_token_word. Overflow just results in line numbers
	  being wrong.  Fix for CVE-2014-7187

				   9/27
				   ----
{execute_cmd,trap}.c
	- changes to make minimal-config builds work again, mostly missing
	  #ifdefs for optional features

builtins/common.c
	- builtin_help: dummy version to be included if HELP_BUILTIN not
	  defined, for minimal-config builds

variables.c
	- initialize_shell_variables: incorporated patches from Florian
	  Weimer <fweimer@redhat.com> to change the strings bash looks
	  for when importing shell functions from the environment.  It
	  adds a prefix (BASH_FUNC_) and a suffix (%%) to the name to
	  mark it as having been created by bash as an exported function.
	  Fix for remote attacks part of CVE-2014-6271 and CVE-2014-7169
	- mk_env_string: takes new argument, indicating whether we are
	  constructing a function
	- mk_env_string: encodes function names as described above, so
	  initialize_shell_variables can find them

				   9/28
				   ----
copy_cmd.c
	- copy_redirects: before calling savestring on here_doc_eof, make
	  sure it's not NULL (it could have been the result of a here
	  document delimited by EOF or EOS).  Fixes bug reported by
	  Michal Zalewski <lcamtuf@coredump.cx>.  Fix for CVE-2014-6277

make_cmd.c
	- make_redirection: initialize here_doc_eof member to NULL.  Rest of
	  fix for CVE-2014-6277

				   9/29
				   ----
parse.y
	- current_input_line_state: return a sh_input_line_state_t containing
	  the current shell_input_line and its index and size variables

shell.h
	- current_input_line_state: extern declaration

builtins/evalstring.c
	- parse_and_execute: call reset_parser() before returning if
	  SEVAL_ONECMD set.  Fixes bug reported by Michal Zalewski
	  <lcamtuf@coredump.cx> and designated CVE-2014-6278
	- parse_and_execute: if we parse a function definition when
	  SEVAL_FUNCDEF is set, but don't consume the entire passed string,
	  throw an error, reset the parser, and return.  Part of fix for
	  CVE-2014-6278
	- parse_and_execute: if parsing the shell function definition when
	  SEVAL_FUNCDEF is set transforms the function name (e.g., if it
	  begins with a newline or begins or ends with whitespace), throw
	  an error, reset the parser, and return.  Fixes bug reported by
	  Eric Kobrin <ekobrin@akamai.com>

				   10/2
				   ----
jobs.c
	- bgp_prune: don't do anything if bgpids.npid == 0 or
	  bgpids.list == NULL.  This can happen if something gets run before
	  the job control framework is initialized.  Bug report from
	  <mancha1@zoho.com>

				   10/3
				   ----
parse.y
	- xparse_dolparen: don't set token_to_read to newline after calling
	  parse_string() and cleaning up when the shell is not interactive.  This
	  makes the parser think it's ok to read new commands even if it's not in
	  a state where that should be possible.  Underlying fix for bug reported
	  by Michal Zalewski <lcamtuf@coredump.cx> and designated CVE-6278
	- parser_remaining_input: new function, returns the portion of
	  shell_input_line that hasn't yet been read
	- current_input_line_state: removed

shell.h
	- parser_remaining_input: extern declaration
	- current_input_line_state: removed

builtins/evalstring.c
	- parse_and_execute: change code that checks whether parse_command has
	  consumed the entire passed string when SEVAL_FUNCDEF is used to use
	  parser_remaining_input instead of messing around with (new)
	  current_input_line_state.  Part of fix for CVE-2014-6278

variables.c
	- initialize_shell_variables: if we don't call parse_and_execute, free
	  the temporary string, since parse_and_execute won't.  Report and fix
	  from Eric Kobrin <ekobrin@akamai.com>

				   10/4
				   ----
print_cmd.c
	- print_function_def: when in posix mode, print shell function
	  definitions as posix specifies them, without the leading
	  `function' keyword

general.c
	- exportable_function_name: return 1 if the passed string can be
	  added to the environment as an exported function name.  Currently
	  prohibits function names containing  `/' and `=' from being
	  exported

general.h
	- exportable_function_name: extern declaration

builtins/setattr.def
	- set_or_show_attributes: if exporting a function with export -f,
	  call exportable_function_name to determine whether the function
	  should be exported; don't export function if it returns 0

				   10/7
				   ----
builtins/setattr.def
	- set_or_show_attributes: don't show identifiers that are invisible
	  and imported from the environment, since that combination of
	  attributes means that the imported variable is not a valid shell
	  identifier.  Report from Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   10/8
				   ----
shell.c
	- shell_initialize: set new variable should_be_restricted, which
	  says whether or not the shell will be a restricted one based on the
	  shell name; use in calls to initialize_shell_variables (to inhibit
	  importing shell functions) and initialize_shell_options (to inhibit
	  parsing $SHELLOPTS) and initialize_bashopts (to inhibit parsing
	  $BASHOPTS).  Report from <paulfm@umn.edu>

				   10/12
				   -----
execute_cmd.c
	- execute_function: unwind-protect loop_level, set loop_level to 0
	  when entering a function so break and continue in functions don't
	  break loops running outside of the function. Fix picked up from
	  dash via Herbert Xu <herbert@gnodor.apana.org.au>

				   10/13
				   -----
doc/Makefile.in
	- bashref.pdf: create using texi2dvi --pdf rather than postprocessing
	  the dvi file, so we have PDF bookmarks and links.  Fix from
	  Siep Kroonenberg <siepo@cybercomm.nl>

				   10/14
				   -----
subst.h
	- Q_ARITH: new quoting flag. Semantics are per Posix's spec for
	  arithmetic expansion: act as if string is quoted, but don't treat
	  double quotes specially (in this case, they will be removed by quote
	  removal)
	- Q_ARRAYSUB: new quoting flag, indicates we are expanding an indexed
	  array subscript

subst.c
	- expand_arith_string: if we are not expanding the string, but we saw
	  a quote with Q_ARITH specified as one of quoting flags, perform
	  quote removal even if Q_DOUBLE_QUOTES is specified
	- param_expand: change calls to expand_arith_string for $[ and $((
	  cases to specify Q_ARITH.  Now $(( "$x" )) and $(( "x" )) work if x
	  has a value that evaluates to a valid number, as Posix specifies
	- expand_word_internal: add test for quoted&Q_ARITH to the tilde case,
	  so we continue to perform tilde expansion in arithmetic contexts
	- expand_word_internal: if quoted&Q_ARITH, continue processing when we
	  see a `"', acting as if the double quote isn't present (already
	  Q_DOUBLE_QUOTED)

arrayfunc.c
	- array_expand_index: pass Q_DOUBLE_QUOTED|Q_ARITH|Q_ARRAYSUB as quoted
	  argument in call to expand_arith_string.  This inhibits word
	  splitting (Q_DOUBLE_QUOTED) while discarding double quotes (Q_ARITH),
	  identical to the quote flags passed while expanding $(( )) and $[ ].
	  Q_ARRAYSUB reserved for future use.  Fixes problem reported by
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/16
				   -----
subst.c
	- parameter_brace_expand_word: if the PF_ASSIGNRHS flag is set and we
	  are expanding what looks like an array subscripted with @ or *,
	  make sure the variable we're expanding is actually an array before
	  we add Q_DOUBLE_QUOTES to the flags.  If we don't, things like
	  scalar[@] will remain quoted.  Fixes ubuntu bug 1381567
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1381567

				   10/17
				   -----
{jobs,nojobs}.c
	- get_original_tty_job_signals: get original signal dispostions for
	  SIGTSTP, SIGTTIN, SIGTTOU before we start manipulating them in
	  make_child
	- default_tty_job_signals: make sure we set SIGTSTP, SIGTTIN, or
	  SIGTTOU to SIG_IGN if they were ignored at shell startup instead of
	  unconditionally setting them to SIG_DFL.  Fixes bug reported by
	  idallen@idallen.ca

jobs.h
	- get_original_tty_job_signals: extern declaration

trap.c
	- initialize_traps: add call to get_original_tty_job_signals

				   10/22
				   -----
subst.c
	- expand_string_for_rhs: when expanding in this context (rhs of a word
	  expansion or pattern removal), we don't perform word splitting, so
	  we don't want to split $* if IFS is empty.  Fixes bug reported by
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/23
				   -----
subst.c
	- param_expand: when expanding $* in a pattern context where the
	  expansion is quoted (Q_PATQUOTE), don't quote the expansion --
	  the outer quotes don't make the characters in the expansion of
	  $* special.  Posix interp 221.  Reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   10/28
				   -----
lib/readline/bind.c
	- enable-bracketed-paste: new bindable variable, enables support for
	  a terminal's `bracketed paste mode'.  Code contributed by
	  Daniel Colascione <dancol@dancol.org>

doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
	- enable-bracketed-paste: add description

lib/readline/{readline.c,rlprivate.h}
	- _rl_enable_bracketed_paste: declarations
	- #defines for use by bracketed paste implementation

lib/readline/rltty.c
	- rl_prep_terminal: send BRACK_PASTE_INIT string to terminal if we
	  are supposed to enable bracketed-paste mode; change terminal_prepped
	  to indicate we sent that string and need to clean up
	- rl_deprep_terminal: if terminal_prepped indicates we sent the
	  bracketed-paste mode init string to the terminal, send the cleanup
	  string before restoring the terminal modes

lib/readline/kill.c
	- rl_bracketed_paste_begin: function to read bracketed paste until
	  BRACK_PASTE_SUFF; discard the suffix, and insert the rest of the
	  paste as a single (undoable) object.  Bound to BRACK_PASTE_PREF

lib/readline/funmap.c
	- bracketed-paste-begin: new bindable command, executes
	  rl_bracketed_paste_begin

lib/readline/readline.c
	- bind_bracketed_paste_prefix: new function, sets up to recognize
	  the bracketed paste prefix sequence (BRACK_PASTE_PREF) in emacs
	  keymap and vi insertion keymap
	- readline_initialize_everything: call bind_bracketed_paste_prefix

				   11/1
				   ----
builtins/ulimit.def
	- RLIMIT_POSIXLOCKS: now synonym for RLIMIT_LOCKS
	- -k: new option: RLIMIT_KQUEUES, max kqueues allocated for this
	  process
	- -P: new option: RLIMIT_NPTS, max number of pseudoterminals available
	  to this process

doc/{bash.1,bashref.texi}
	- document `ulimit -k' option
	- document `ulimit -P' option

parse.y
	- `timespec list_terminator' production: if the list terminator is `;'
	  set last_read_token to `;' to allow things like `time ; command' to
	  time null commands and not throw a syntax error.  Patch from
	  Piotr Grzybowski <narsil.pl@gmail.com>
	- `BANG list_terminator' production: do the same thing

variables.c
	- sv_optind: use find_shell_variable and get_variable_value so we can
	  have the variable's context in the case we need to do something
	  when we are restoring a previous variable context's value

builtins/getopt.h
	- sh_getopt_state_t: struct to save sh_getopt's internal state so we
	  can restore it around function calls in the event that we have a
	  local copy of OPTIND

builtins/getopt.[ch]
	- sh_getopt_{save,restore}_istate: new functions to save and restore
	  getopt's internal state
	- sh_getopt_{alloc,dispose}_istate: new functions to allocate and
	  deallocate sh_getopt_istate_t objects

execute_cmd.c
	- maybe_restore_getopt_state: restore sh_getopt state after executing
	  function body iff the funtion declared a local copy of OPTIND
	- execute_function: save sh_getopt state before executing function body
	- execute_function: note in getopt_state->flags whether or not the
	  function declared a local copy of OPTIND; used by
	  maybe_restore_getopt_state
	- execute_function: maybe restore sh_getopt state before returning via
	  call to maybe_restore_getopt_state.  Fixes bugs with getopts and
	  state between calls reported in 2011 by Bernd Eggink
	  <monoped@sudrala.de> and in 2014 by Oyvind Hvidsten
	  <oyvind.hvidsten@dampir.no>

configure.ac
	- enable-function-import: new option, controls whether function imports
	  are included.  Enabled by default.  Patch from David Galos
	  <davegalos@google.com>

config.h.in
	- FUNCTION_IMPORT: define controlled by enable-function-import above

variables.c
	- initialize_shell_variables: include code to import function
	  definitions from the environment if FUNCTION_IMPORT is defined

doc/bashref.texi
	- --enable_function-import: document new configuration option

				   11/5
				   ----
lib/readline/history.c
	- history_lines_read_from_file: new variable, set by read_history and
	  read_history_range to the actual number of lines read from the
	  history file.  The value is valid immediately after a call to one
	  of those functions
	- history_lines_written_to_file: new variable, set by write_history,
	  history_do_write, and history_truncate_file to the actual number of
	  lines written to the history file.  The value is valid immediately
	  after a call to one of those functions

variables.c
	- sv_histsize: set history_lines_in_file after history_truncate_file()
	  only if hmax < history_lines_in_file (lines we've already read); a
	  cosmetic change only

bashhist.c
	- load_history: set history_lines_in_file after read_history() from
	  history_lines_read_from_file, since read_history reads all of the
	  lines from the history file even if it's more than $HISTSIZE
	- maybe_save_shell_history: after calling write_history(), set
	  history_lines_in_file to history_lines_written_to_file, since we
	  can assume that we read everyhing we just wrote

builtins/history.def
	- history_builtin: after calling read_history (history -r), set the
	  new value of history_lines_in_file, for the same reason as above
	- history_builtin: after calling read_history_range (history -n), set
	  history_lines_in_file from history_lines_read_from_file

				   11/6
				   ----
lib/readline/histfile.c
	- history_truncate_file: since we move the old file to a backup copy
	  before truncating, make sure the new file is owned by the same uid
	  as the old
	- history_do_write: use chown in the same way as history_truncate_file

				   11/12
				   -----
lib/readline/display.c
	- expand_prompt: takes a new `flags' argument; only one flag defined
	  so far: PMT_MULTILINE
	- expand_prompt: changed all callers to add new flags argument
	- rl_expand_prompt, redraw_prompt: make sure to set PMT_MULTILINE in
	  FLAGS argument to expand_prompt if expanding parts of a prompt
	  containing embedded newlines
	- expand_prompt: only add mode char to last line of a prompt with
	  embedded newlines, so mode indicator doesn't get lost and gets
	  updated properly.  Fixes problem reported by Renlin Li
	  <lirenlin@gmail.com>

				   11/13
				   -----

lib/readline/display.c
	- prompt_modestr: changed prompt_modechar to return a string denoting
	  the editing mode; default strings for emacs and both vi modes are
	  #defines in this file.  prompt_modestr takes an argument in which
	  it returns the length of the mode string
	- expand_prompt: if expanding mode strings in the prompt, get the
	  mode string to use and add it at the beginning of the prompt string,
	  before expanding it.  This will allow future work allowing the mode
	  string to contain invisible characters

				   11/15
				   -----
lib/readline/rlprivate.h
	- _rl_{emacs,vi_cmd,vi_ins}_mode_str: extern declarations for
	  variables to hold current values of user-settable mode strings;
	  variables to hold lengths 

lib/readline/rlconf.h
	- defines for default values of the mode strings for each editing mode
	  and keymap

lib/readline/display.c
	- _rl_{emacs,vi_cmd,vi_ins}_mode_str: new variables to hold values of
	  user-settable mode strings
	- _rl_{emacs,vi_cmd,vi_ins}_modestr_len: new variables to hold lengths
	  of corresponding mode string variables
	- prompt_modestr: return appropriate user-settable mode string
	  variables

lib/readline/bind.c
	- {emacs,vi-ins,vi-cmd}-mode-string: new user-settable mode string
	  variables
	- sv_{emacs,viins,vicmd}_modestr: variable handling functions for user-
	  settable mode string variables. Non-null values are run through
	  rl_translate_keyseq so users can include invisible character
	  sequences in the mode strings; null values restore the default
	- _rl_get_string_variable_value: handle values for new user-settable
	  mode string variables. Original code contributed by Dylan Cali
	  <calid1984@gmail.com>

lib/readline/doc/rluser.texi
	- {emacs,vi-ins,vi-cmd}-mode-string: document, including the fact that
	  you can use \1 and \2 to bracket sequences of non-printing
	  characters

				   11/16
				   -----
lib/readline/history.c
	- add_history: replace loop that copies history list down one item
	  with call to memmove to take advantage of whatever efficiencies
	  libc can offer.  Won't be any slower than current loop

lib/readline/display.c
	- rl_redraw_prompt_last_line: new function, calls redraw_prompt if
	  the prompt contains multiple lines; calls rl_forced_update_display
	  if not

lib/readline/readline.h
	- rl_redraw_prompt_last_line: extern declaration, undocumented in
	  texinfo manual until I get it a little more work

bashline.c
	- bash_execute_unix_command: instead of unconditionally calling
	  rl_forced_update_display, call rl_redraw_prompt_last_line if we
	  cleared the last line before executing the command.  This keeps
	  commands that don't display any other output but just manipulate
	  the contents of the line buffer from redisplaying the prompt lines
	  before the last newline multiple times.  Fixes bug reported by
	  Jesper Nygards <jesper.nygards@gmail.com> and Rob Foehl
	  <rwf@loonybin.net>.  This means that commands that display output
	  will *only* display the final line of the prompt
	- bash_execute_unix_command: if the command returns 124, we redraw
	  the line unconditionally, including all lines of the prompt

				   11/18
				   -----
builtins/mapfile.def
	- mapfile_builtin: don't allow a valid array reference through to
	  mapfile(), since it will just create a shell variable with that name.
	  Bug and fix from Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   11/19
				   -----
lib/readline/complete.c
	- _rl_colored_completion_prefix: new variable, if non-zero, and color
	  support is compiled in, and the $LS_COLORS variable exists and
	  contains color definitions, display any common prefix of a set of
	  completions in blue when displaying all the possible completions.
	  Doesn't work with menu-complete, which inserts possible completions
	  inline
	- colored_prefix_start(), colored_prefix_end(): new functions, used to
	  bracket colored completion prefixes
	- fnprint: if prefix_bytes is non-zero, and _rl_colored_completion_prefix
	  is > 0, display the first PREFIX_BYTES bytes of the word bracketed
	  by calls to colored_prefix_start and colored_prefix_end
	- print_filename: if _rl_colored_completion_prefix is > 0, compute the
	  length in bytes of the common prefix and pass that to fnprint

lib/readline/readline.c
	- readline_initialize_everything: initialize the colors from $LS_COLORS
	  if _rl_colored_completion_prefix is non-zero

lib/readline/colors.c
	- _rl_print_prefix_color: new function, changes text color to that
	  defined for the common prefix of a set of possible completions
	  (currently cyan, same as directories); currently uses C_PREFIX,
	  defined in colors.h as C_DIR

lib/readline/colors.h
	- _rl_print_prefix_color: new extern declaration

lib/readline/bind.c
	- colored-completion-prefix: new bindable variable, if set, common
	  prefix of a set of possible completions is displayed in color.
	  Feature requested by several, most recently by Richard Neill
	  <rn214@richardneill.org> (in a slightly different form) and
	  Duy Nguyen <pclouds@gmail.com>

				   11/20
				   -----
builtins/printf.def
	- printf_builtin: allow null (empty) format strings supplied with
	  -v var to set `var' to the empty string.  That is, printf -v var ""
	  is now the same as var="".  Change suggested by Mike Frysinger
	  <vapier@gentoo.org>

pathexp.h
	- FNMATCH_NOCASEGLOB: macro to decide whether or not to pass
	  FNM_CASEFOLD flag to strmatch depending on whether glob_ignore_case
	  is set; analogout to FNMATCH_IGNCASE

pathexp.c
	- glob_name_is_acceptable: use FNMATCH_NOCASEMATCH to determine flags
	  passed to strmatch; if nocaseglob is used to generate glob matches,
	  it should be used to generate ignored matches

				   11/21
				   -----
pcomplete.c
	- filter_stringlist: the call to strmatch now honors the setting of
	  nocasematch.  Feature request from Ville Skytta <ville.skytta@iki.fi>
	  back in 2010

doc/bash.1,lib/readline/doc/rluser.texi
	- complete -X: document that filtering the list of possible completions
	  honors the nocasematch option when performing matching

lib/glob/gmisc.c
	- include chartypes.h and strmatch.h for new defines
	- match_pattern_{wchar,char}: now take new third FLAGS argument, flags
	  have same meanings as strmatch(); intent is to handle case
	  insensitive comparisons under same conditions as strmatch
	- FOLD: imported case-folding define from sm_loop.c; wide and single-
	  byte character versions
	- match_pattern_{wchar,char}: use FOLD when comparing characters to
	  honor FNM_CASEFOLD if set in FLAGS argument

externs.h
	- match_pattern_{wchar,char}: updated extern declarations

subst.c
	- match_{upattern,wpattern}: update strmatch/wcsmatch calls to include
	  FNMATCH_IGNCASE in flags argument
	- match_{upattern,wpattern}: update match_pattern_{char,wchar} calls
	  to include FNMATCH_IGNCASE in flags argument (consistent with calls
	  to strmatch).  This makes pattern substitution word expansion honor
	  nocasematch shell option.  Feature requested by Davide Baldini
	  <baldiniebaldini@gmail.com>
	- match_wpattern: make sure to fold case if necessary when doing simple
	  matching

doc/{bash.1,bashref.texi}
	- pattern substitution: updated description to include honoring setting
	  of nocasematch when performing matching

subst.c
	- expand_word_internal: optimize handling of "$@" idiom by calling
	  list_rest_of_args() and quote_list() directly at the top of the
	  function instead of going through normal code path
	- cached_quoted_dollar_at: WORD_LIST of quoted positional parameters,
	  used by same code above that optimizes "$@"; if non-null we just
	  return a copy of the list; if null, we save a copy of the list we
	  create
	- invalidate_cached_quoted_dollar_at: convenience function to allow
	  other parts of the shell (e.g., remember_args()) to destroy the
	  cached list of quoted positional parameter when the positional
	  parameters change

builtins/common.c
	- remember_args: call invalidate_cached_quoted_dollar_at()

builtins/shift.def
	- shift_builtin: call invalidate_cached_quoted_dollar_at after modifying
	  dollar_vars[]

builtins/source.def
	- maybe_pop_dollar_vars: call invalidate_cached_quoted_dollar_at just
	  to be safe

				   11/23
				   -----
builtins/evalfile.c
	- _evalfile: return -1 if errno == ENOENT and the flags don't include
	  FEVAL_ENOENTOK.  If we print an error message we should return an
	  error
	- force_execute_file: new function, reads and executes commands from
	  a file but returns an error if file  doesn't exist

builtins/common.h
	- force_execute_file: new extern declaration

shell.c
	- main: call start_debugger even if dollar_vars[1] == 0 if the shell
	  isn't interactive (interactive_shell == 0)
	- start_debugger: call force_execute_file instead of maybe_execute_file;
	  turn off debugging mode if it returns value < 0

				   11/24
				   -----
hashlib.h
	- DEFAULT_HASH_BUCKETS: doubled to 128, cost in memory use is small but
	  changes traversal order when not sorting results

				   11/25
				   -----
doc/{bash.1,bashref.texi}
	- make it clearer, by breaking it out into a separate paragraph, that
	  referencing an array without a subscript is equivalent to referencing
	  it with subscript 0
	- add text saying that referencing any variable using a valid subscript
	  is OK

				   11/28
				   -----

arrayfunc.c
	- bind_array_variable, bind_assoc_variable: allow binding value to a
	  readonly variable if the ASS_FORCE flag is set in the FLAGS
	  argument

subst.h
	- ASS_FORCE: new assignment flag; means to allow assignment even if
	  variable is marked readonly

builtins/declare.def
	- when assigning a value to an array or assoc variable using
	  something like `declare -r foo=bar' where foo is an existing array
	  variable, pass the ASS_FORCE to assign_array_var_from_string so
	  the assignment is allowed.  Fixes debian bug 765759
	  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765759

builtins/setattr.def
	- var_attribute_string: new function to return (as argument) a char
	  array with attribute flag values for a given variable; returns the
	  length of the array

lib/sh/shquote.c
	- sh_quote_reusable: function returning a version of its string
	  argument that is quoted for reuse

externs.h
	- sh_quote_reusable: extern declaration

builtins/common.h
	- MAX_ATTRIBUTES: define used to size arrays for attribute flag
	  characters
	- var_attribute_string: new extern function declaration

subst.c
	- array_remove_pattern: fixed a bug where `var' instead of `v' was
	  tested for invisible attribute
	- get_var_and_type: fill in a valid *VARP if returning VT_VARIABLE
	  because callers may need to use it
	- parameter_brace_transform: family of functions to implement the new
	  mksh-inspired ${param@spec} transformation word expansions.  Some
	  of the operators transform the (expanded) value of the parameter,
	  the rest expand to information about the parameter itself
	  (array_transform, parameter_list_transform, list_transform,
	  string_transform, pos_params_assignment, array_var_assignment,
	  string_var_assignment)
	- parameter_brace_expand: changes to parse the new `@' word expansion
	  operator and call parameter_brace_transform appropriately
	- parameter_brace_expand: make sure we handle ${#@} as we have before
	  even in the presence of the new `@' operator

variables.c
	- push_temp_var: make sure to call bind_variable_internal with the
	  ASS_FORCE flag so we override readonly variables created with
	  something like `tempvar=foo declare -r foo'.
	- bind_variable_internal: honor ASS_FORCE flag to allow binding even
	  if a variable is readonly

execute_cmd.c
	- struct func_array_state: new state to save state of BASH_LINENO,
	  BASH_SOURCE, and FUNCNAME during function execution so it can be
	  restored on a jump to top level
	- restore_funcarray_state: new function to restore func_array_state
	- execute_function: fill in func_array_state variable, add unwind-
	  protect to restore it on jump to top level, call explicitly at
	  end of function if subshell != 0 (may not be necessary, but safe
	  for now).  Fixes bug with local assignments to FUNCNAME reported
	  by Arfrever Frehtes Taifersar Arahesis <arfrever.fta@gmail.com>

				   11/29
				   -----
arrayfunc.c
	- assign_compound_array_list: turn off ASS_APPEND flag when processing
	  each individual assignment inside the parens in var+=(...).  The
	  outer += should not affect assignments to existing subscripts;
	  those should be treated like usual assignments unless += supplied
	  inside the parens.  Bug report from Maarten Billemont
	  <lhunath@lyndir.com>, fix from Eduardo A. Bustamante LÃ³pez
	  <dualbus@gmail.com>

config.h.in
	- HAVE_PSELECT: define if pselect(2) available

configure.ac
	- check for pselect(2), define HAVE_PSELECT if found

lib/readline/input.c
	- rl_getc: use pselect(2) to wait for input ready on readline's
	  input fd or for a signal to arrive, will handle SIGWINCH (which
	  does not interrupt read(2)) and thus allow resize to happen without
	  having to wait to read more input.  Only works if pselect available
	  and returns -1/EINTR on a signal even if the signal was installed
	  with SA_RESTART.  From a suggestion from Egmont Koblinger
	  <egmont@gmail.com>

				   12/3
				   ----
variables.c
	- flush_temporary_env: new function, disposes all temp variables in
	  temporary_env hash table
	- bind_variable: only try to update a temporary variable's value in the
	  temporary env if the value argument is not null.  Fixes bug reported
	  by <tangqinghao@360.cn>

variables.h
	- flush_temporary_env: new extern declaration

subst.c
	- command_substitute: if running command substitution as part of
	  expanding a redirection (expanding_redir == 1), flush any temporary
	  environment we've inherited as part of this command, since we are not
	  supposed to have access to the temporary environment.  Since
	  expanding_redir only controls access to the temporary environment for
	  variable lookup and binding, we can turn it off in the subshell

				   12/4
				   ----
builtins/printf.def
	- printstr: make sure a missing precision specifier after a `.' is
	  treated as 0, as printf(3) specifies.  Fixes ubuntu bash bug
	  1399087 (https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1399087)

				   12/5
				   ----
subst.c
	- skip_to_delim: if scanning past process substitution (skipcmd == 1,
	  noprocsub == 0), use extract_delimited_string instead of
	  extract_process_subst, which was changed a while back (bash-4.3.23)
	  to use xparse_dolparen.  xparse_dolparen complains if the command
	  or process substitution is unterminated, since it runs the parser,
	  which is not what we want here.  Command substitution does the same
	  thing.  Fixes bug reported by  Daniel Kahn Gillmor
	  <dkg@fifthhorseman.net> as Debian bash bug 771968
	  (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=771968)

				   12/6
				   ----
subst.c
	- command_substitute: short-circuit without forking on a command string
	  that consists entirely of <blank>s and newlines

jobs.c
	- make_child: changes to allow interrupts through if fork fails and
	  we are sleeping for `forksleep' seconds
	- waitchld: make things a little more resilient if CHILD ends up NULL

				   12/12
				   -----
lib/readline/complete.c
	- rl_display_match_list: when calculating common prefix to display in
	  color, make sure we correctly handle a common prefix with a trailing
	  `/' as we do when checking whether or not to add an ellipis.
	  printable_part() doesn't return the whole pathname if it ends in a
	  slash, to avoid printing null strings, so we have to make sure we
	  have the entire prefix

lib/readline/complete.c
	- _rl_complete_display_matches_interrupt: new variable, set to 1 by
	  _rl_complete_sigcleanup to let rl_display_match_list know it has
	  freed the match list
	- display_matches: check for signals during the printing loops with
	  RL_SIG_RECEIVED(), return immediately if there is a pending signal
	  (might not want to do this if it's SIGWINCH -- CHECK)
	- rl_complete_internal: if _rl_complete_display_matches_interrupt
	  set after calling display_matches, just null out `matches' since
	  it's already been freed and call any application-set signal hook

				   12/14
				   -----
parse.y
	- time_command_acceptable: if the token before a newline is `|',
	  return 0, since it's not really valid to time inside a pipeline.
	  Only handles a single newline but allows things like
		echo a |
		 time cat
	  to invoke /usr/bin/time, which is probably enough to catch the
	  stray carriage return.  Fixes bug reported by Andre Majorel
	  <aym-ung@teaser.fr>

builtins/declare.def
	- declare_internal: don't try to perform compound assignments unless
	  the WORD_DESC has flags including W_COMPASSIGN (maybe should check
	  W_ASSIGNMENT as well), avoiding unexpected evaluation if a word
	  is of the form (word) and is assigned to an array variable like so:
	  declare -x var=$value.  Bug reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>. Will eventually be contingent on
	  compatibility level > 43, but not there yet. TENTATIVE

				   12/15
				   -----
lib/sh/Makefile.in
	- add missing dependencies for shmatch.o.  Pointed out by Sergey
	  Mikhailov <sergey.mikhailov@gmail.com>

				   12/16
				   -----
{execute_cmd,subst}.c
	- W_ASSIGNINT: remove, not used any more

execute_cmd.c
	- fix_assignment_words: don't look for `-i' option and set W_ASSIGNINT
	  flag any more; doing things a different way
	- shell_expand_word_list: instead of using W_ASSIGNINT flag, since it
	  doesn't take into account all options that can transform values on
	  assignment (-l/-u/-c can also), go through option arguments looking
	  for options that need special handling and add them to the `opts'
	  array for make_internal_declare to use.  Fixes bug with constructs
	  like `declare -al foo=(UPONE UPTWO UPTHREE)' not being lowercased on
	  assignment reported by Linda Walsh <bash@tlinx.org>



				   12/18
				   -----
lib/readline/readline.c
	- rl_internal_char: when we read EOF on a non-empty line, check for
	  signals and invoke any readline signal handling and any application-
	  installed signal hook

				   12/20
				   -----
lib/readline/readline.c
	- rl_internal_char: if we read EOF on a non-empty line, set c to
	  _rl_eof_char the first time through.  If we read EOF the next time,
	  return EOF from readline().  If callbacks are defined, this returns
	  EOF immediately, since lastc isn't available.  Fix for problem
	  most recently identified by Jiri Kukacka <jiri.kukacka@orcle.com>,
	  it has come up in the past

				   12/21
				   -----
builtins/declare.def
	- declare_internal: keep track of whether or not an assignment statement
	  argument to declare is an array subscript assignment; need to
	  differentiate assignments from straight declarations (declare a[4])
	  which are accepted for backwards compatibility
	- assignment statements like declare a[2]=foo are now treated as
	  straight subscript assignment statements if a already exists as an
	  array variable
	- declare foo='(1 2 3)' is treated as an assignment to foo[0] if foo
	  exists and is an array, just as it would be if it were an assignment
	  statement and `declare' was not present.  All this from a proposal
	  by Stephane Chazelas <stephane.chazelas@gmail.com>

				   12/22
				   -----
builtins/read.def
	- read_tty_modified: function to tell the rest of the shell if the
	  read builtin has modified the tty
	- read_builtin: make sure to initialize terminating signals before
	  installing a SIGALRM signal handler in case we modify the tty as
	  well as ask for a timeout; the subsequent call to
	  initialize_terminating_signals would overwrite the read-builtin-
	  local SIGALRM handler

builtins/common.h
	- read_tty_modified: new extern declaration

shell.c
	- exit_shell: if read_tty_modified() returns true, call read_tty_cleanup
	  to undo the terminal modifications. Extension of previous fixes;
	  fixes bug with read -s reported by Richard W. Marsden
	  <richard@marsden.nu>


				   12/23
				   -----
builtins/setattr.def
	- show_var_attributes: call print_array_assignment and print_assoc_assignment
	  with a `not quoted' flag so the assignment statements are not
	  surrounded by single quotes.  Caused changes to a lot of test output

				   12/29
				   -----
lib/readline/complete.c
	- stat_char: Windows doesn't handle X_OK flag to access(2); use file
	  extensions to determine whether or not a file is executable.  Bug
	  report and fix from Eli Zaretskii <eliz@gnu.org>

configure.ac
	- changed version to bash-4.4-devel

lib/readline/readline.h
	- changed version to readline-6.4

				   12/30
				   -----
readline.h
	- struct readline_state: fix types of `ignorefunc' and `attemptfunc'
	  members

lib/sh/shquote.c,externs.h
	- sh_contains_shell_metas, sh_contains_quotes: now take `const char *'
	  as parameter

stringlib.c,externs.h
	- strcreplace: `text' argument now `const char *'

pathexp.[ch]
	- quote_globbing_chars: `string' argument now `const char *', accompanying
	  changes to function local variables

pcomplete.c
	- preproc_filterpat: `text' argument now `const char *'
	- filter_stringlist: `text' argument now `const char *'

				   12/31
				   -----
builtins/evalstring.c
	- should_suppress_fork: new function, broke code that decides whether
	  to turn on CMD_NO_FORK flag out of parse_and_execute into a separate
	  function

execute_cmd.c
	- execute_command_internal: AND_AND, OR_OR: call should_suppress_fork
	  for the RHS of && and ||, make `make' invocations marginally more
	  efficient

flags.c
	- get_current_flags: returns a bitmap of all single-letter shell
	  options with a non-zero value meaning option is enabled
	- set_current_flags: set current single-letter options from a passed
	  bitmap, which has presumably been initialized with get_current_flags

flags.h
	- {get,set}_current_flags: new extern declarations

builtins/declare.def
	- declare_internal: if invoked as `local', interpret name argument of
	  `-' to mean to save (and restore at shell return) single-letter
	  shell options

variables.c
	- push_func_var: if we encounter `-' as the name of a local variable,
	  take the value and call set_current_flags on it to restore old
	  flag settings

builtins/set.def
	- get_current_options: returns a bitmap of all shell options settable
	  with `set', with a non-zero value meaning option is enabled
	- set_current_options: set current shell options from a passed
	  bitmap, which has presumably been initialized with get_current_options


				 1/1/2015
				 --------
lib/readline/parens.c
	- _rl_blink_matching_paren: initialize to 0 whether or not select(2) is
	  available.  Inconsistency reported by Mark Karpov
	  <markkarpov@opmbx.org>

builtins/declare.def
	- declare_internal: use get_current_options instead of
	  get_current_flags, so `local -' can be generalized

variables.c
	- push_func_var: use set_current_options instead of set_current_flags
	  so `local -' can be generalized

doc/{bash.1,bashref.texi}
	- document new `local -' feature; originally inspired by Robert Elz
	  <kre@munnari.oz.au> describing feature in NetBSD sh

				    1/3
				    ---
lib/readline/{complete,funmap,kill,histfile,util}
lib/readline/readline.h
lib/tilde/tilde.c
	- fixes for filename- and evironment-related issues on Windows.  Fixes
	  from Eli Zaretskii <eliz@gnu.org>
	- Windows can paste to the console from the clipboard like Cygwin
	- Windows uses $APPDATA as a pseudo-$HOME

lib/readline/input.c
	- rl_getc: use _getch on Windows to avoid being overridden by a getch
	  ncurses function
	- win32_isatty: replace Windows isatty(3) with a function that does
	  additional checks, sinces Windows isatty returns non-zero for
	  every character device.  From Eli Zaretskii <eliz@gnu.org>

lib/readline/display.c
	- delete_chars: if compiled with ncurses on Windows, this code can
	  work, so build it in if NCURSES_VERSION defined
	- open_some_spaces: ditto

				    1/6
				    ---
doc/{bash.1,bashref.texi}
	- minor grammar and typo corrections from TonyMc <afmcc@btinternet.com>

				    1/8
				    ---
sig.c
	- throw_to_top_level: only attempt to run the interrupt trap if SIGINT
	  is trapped -- minor optimization
	- throw_to_top_level: if we are running a trap, call run_trap_cleanup
	  to turn off the sigmodes flags

trap.c
	- _run_trap_internal: temporarily suppress pending SIGINTs while running
	  one of the traps the shell handles internally (e.g., ERR).  Fixes bug
	  reported by Keith Thompson <keithsthompson@gmail.com>

				   1/10
				   ----
bashhist.c
	- bash_history_inhibit_expansion: use skip_to_delim with the history
	  expansion character to see whether or not the instance of the
	  history expansion character should be skipped because, for instance,
	  it is in a command substitution.  Fixes issue reported by
	  Zigmund.Ozean@zig-home.localdomain

				   1/14
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: if we are in a multibyte locale, make sure to
	  use _rl_find_prev_mbchar when trying to delete characters from the
	  search string, instead of just chopping off the previous byte.
	  Fixes bug reported by Kyrylo Shpytsya <kshpitsa@gmail.com>

lib/readline/complete.c
	- rl_filename_completion_function: if we tilde-expand `dirname', make
	  sure we use the expanded result instead of throwing it away for the
	  quote-removed `users_dirname', which still has any leading tilde.
	  Fixes bug reported by Dave Rutherford <dave@evilpettingzoo.com>

execute_cmd.c
	- select_query: if the read builtin doesn't return anything in REPLY,
	  return NULL (failure). Fixes bug reported by Etherial Raine
	  <osirisgothra@hotmail.com>

builtins/read.def
	- read_builtin: if REPLY has the readonly or noassign attribute, return
	  failure

				   1/16
				   ----
redir.c
	- redir_open: if open() returns -1/EINTR, check traps as well as
	  using QUIT to handle signals

				   1/18
				   ----
jobs.c
	- wait_for: make sure queue_sigchld is set to 1 before unblocking
	  SIGCHLD if MUST_UNBLOCK_CHLD is defined

				   1/19
				   ----
pcomplete.h
	- new progcomp option: COPT_NOSORT, means to not sort list of possible
	  completions

pcomplete.c
	- pcomp_set_readline_variables: if COPT_NOSORT set in compspec flags,
	  set rl_sort_completion_duplicates to 0

builtins/complete.def
	- _compopt: new option value: -o nosort, sets COPT_NOSORT in compspec
	  option flags. Provides new -o nosort option for complete and compgen

bashline.c
	- attempt_shell_completion: make sure rl_sort_completion_matches is
	  set to 1 before completion is attempted; allow a compspec to turn
	  it off

lib/readline/kill.c
	- rl_vi_yank_pop: new function, vi-mode version of yank-pop.  Original
	  code from Ian Kelling <ian@iankelling.org>

lib/readline/funmap.c
	- `vi-yank-pop': bindable name mapped to rl_vi_yank_pop

lib/readline/readline.h
	- rl_vi_yank_pop: extern declaration

				   1/21
				   ----
lib/sh/shquote.c
	- sh_backslash_quote: change to understand and handle multibyte
	  characters, using is_basic, COPY_CHAR_P.  See
	  https://bugzilla.redhat.com/show_bug.cgi?id=1184320 for original
	  report

				   1/23
				   ----
include/posixjmp.h
	- use setjmp_sigs instead of redefined setjmp, it fails on Cygwin.
	  Report from Eric Blake <eblake@redhat.com>

builtins/wait.def,shell.c
	- use setjmp_sigs instead of setjmp call, since setjmp no longer
	  redefined to something known

include/chartypes.h, lib/readline/chardefs.h
	- make sure all ctype.h macros are called with unsigned char args,
	  casting to make sure

lib/sh/casemod.c
	- sh_modcase: don't assume that the upper and lower case versions of a
	  character are the same width, so don't try to do the conversion in
	  place: convert and copy the converted characters one or more at a
	  time to the returned string
	- sh_modcase: since upper and lower case versions of same character
	  may have different widths in some locales, don't shortcut and assume
	  that we can do single-byte case modification (toupper) with a
	  single-byte input character (e.g., `i').  Fix for problem reported
	  by Stephane Chazelas <stephane.chazelas@gmail.com>

				   1/31
				   ----
lib/readline/histfile.c
	- history_truncate_file, history_do_write: if the first rename(2)
	  of the history file to the backup file fails, set the backup file
	  name to NULL to prevent any later attempts to restore the
	  original.  Report from Jonathan Hankins <jhankins@homewood.k12.al.us>
	- history_do_write: don't attempt to back up non-regular files.
	  Report from Jonathan Hankins <jhankins@homewood.k12.al.us>

				    2/2
				    ---
trap.c
	- run_interrupt_trap: now takes an argument indicating whether or not
	  it was called just before a longjmp to top_level; change callers
	- run_interrupt_trap: if running a trap and we are being called before
	  a longjmp to top_level, call run_trap_cleanup on running trap so
	  a QUIT call while running a DEBUG trap, for instance, doesn't leave
	  sigmodes[DEBUG_TRAP] including SIG_INPROGRESS.  Fixes bug reported
	  by Chih-Chieh Chou <ccchou@gmail.com>

sig.c
	- throw_to_top_level: change call to run_interrupt_trap to pass arg 1
	- termsig_handler: change call to run_interrupt_trap

trap.h
	- run_interrupt_trap: update extern prototype declaration

				    2/4
				    ---
lib/readline/histfile.c
	- histfile_backup, histfile_restore: new functions to back up and restore
	  history file to `filename-', following (one level of) symlinks through
	  so we don't rename the symlink itself.  From a suggestion by
	  Jonathan Hankins <jhankins@homewood.k12.al.us>

assoc.c
	- assoc_to_assign: if an index happens to be `@' or `*', make sure it's
	  double-quoted.  Bug report from Greg Wooledge <wooledg@eeg.ccf.org>

				    2/5
				    ---
lib/readline/bind.c
	- rl_bind_key: if we are rebinding a key that is not bound to a
	  function or a macro, construct a key sequence and pass it to
	  rl_bind_keyseq.  Make sure that '\' when it is used as a key is
	  changed to "\\" so it can survive rl_translate_keyseq.  Fixes
	  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=776743

				    2/8
				    ---
include/posixjmp.h
	- _rl_longjmp, sh_longjmp: new defines, expand to siglongjmp or longjmp
	  depending on autoconf results, used to avoid redefining longjmp,
	  remove _OPENNT conditional code.  Report from Eric Blake
	  <eblake@redhat.com>

{bashjmp,quit}.h,{execute_cmd,expr,jobs,sig,trap}.c,builtins/{evalstring.c,return.def}
	- change calls to longjmp to use sh_longjmp

lib/readline/util.c
	- change calls to longjmp to use _rl_longjmp

				   2/18
				   ----
variables.c
	- bind_int_variable: make sure `v' is non-null before making it visible

				   2/19
				   ----
arrayfunc.c
	- assign_array_var_from_word_list: after assignment, mark variable as no
	  longer invisible
	- assign_array_var_from_string: after assignment, mark variable as no
	  longer invisible

builtins/declare.def
	- declare_internal: add warning if an attempt is made to use a quoted
	  compound assignment as an argument to declare (declare -a foo='( 1 2 )');
	  backwards compatible with bash-4.3. Still a tentative change

				   2/20
				   ----
lib/glob/smatch.c
	- is_wcclass: check malloc() return value, return -1 if it fails
	  Report from Tobias Stoeckmann <tobias@stoeckmann.org>

lib/sh/shmatch.c
	- sh_regmatch: check malloc() return value, handle NULL value if it
	  fails.  Report from Tobias Stoeckmann <tobias@stoeckmann.org>

				   2/22
				   ----
lib/readline/doc/rltech.texi
	- rl_callback_handler_install: note that the handler function should
	  free the line it receives, as with readline.  Suggested by
	  Ulf Magnusson <ulfalizer@gmail.com>
	- Readline Signal Handling: note that application needs to clean up
	  readline's terminal state if it wants to handle a signal before
	  the line handler restores it.  Suggested by Ulf Magnusson
	  <ulfalizer@gmail.com>

				   2/24
				   ----
lib/readline/histfile.c
	- history_do_write,history_truncate_file: if the write fails, make sure
	  to set history_lines_written_to_file to 0 so we don't lose those
	  history entries

				   2/27
				   ----
execute_cmd.c
	- execute_function: unwind-protect the value of line_number_for_err_trap,
	  so a function that returns a non-zero value and triggers an ERR trap
	  has the right value for LINENO. Any simple command in the function
	  body can change it.  Bug report from Paul Donohue <gnu@paulsd.com>

				    3/5
				    ---
lib/sh/shquote.c
	- sh_backslash_quote: cast `c' to `unsigned char' before using as
	  index into backslash_table.  Report and fix from
	  alexeyv.90@gmail.com

arrayfunc.[ch]
	- valid_array_reference: added second `flags' argument for future use;
	  currently unused

parse.y,{redir,subst,variables,test}.c
builtins/{declare,printf,read,set}.def
	- valid_array_reference: changed callers

				    3/7
				    ---
lib/readline/signals.c
	- _rl_handle_signal: if readline gets a SIGTSTP or SIGTTIN, block
	  SIGTTOU so a backgrounded readline can reset the terminal settings
	  appropriately, otherwise the terminal state and readline's idea
	  of it can get messed up.  Original report from Dave Wysochanski
	  <dwysocha@redhat.com> and Dave Anderson <anderson@redhat.com>

trap.c
	- run_pending_traps: don't allow recursive SIGWINCH trap invocations;
	  they're wasteful and trying to handle a stream of signals while a
	  user resizes the terminal can lead to malloc errors trying to save
	  and restore the_pipeline multiple times.  Problem reported most
	  recently by Martin M. S. Pederson (Fedora bash bug 1197768
	  https://bugzilla.redhat.com/show_bug.cgi?id=1197768)
	- reset_or_restore_signal_handlers: set pending_traps to 0 for all
	  signals when forking a child. TENTATIVE fix

jobs.c
	- {save,restore}_pipeline: block SIGCHLD while manipulating the_pipeline
	  like cleanup_the_pipeline does. XXX - may not be necessary

lib/readline/display.c
	- rl_redisplay: fixed case where multibyte character in the prompt
	  (e.g., \u03bb) in the last screen column causes problems with line
	  wrapping because the newline marker is put in the middle of the
	  multibyte char.  Most recently reported on Ubuntu by
	  <sterpe@gmail.com>

pathexp.c
	- quote_string_for_globbing: if a bracket expression doesn't have a
	  closing right bracket, rescan it from just after the opening
	  bracket without treating it as a bracket expression.  Bug report
	  from Stephane Chazelas <stephane.chazelas@gmail.com>

				    3/9
				    ---
subst.c
	- process_substitute: keep the last pipeline created to run a process
	  substitution in LAST_PROCSUB_CHILD; discard it when another one is
	  created

jobs.[ch]
	- discard_pipeline: now global, so process_substitute can call it

jobs.c
	- last_procsub_child: new variable, set and modified only by the process
	  substitution code
	- find_pipeline: if the requested pid is in LAST_PROCSUB_CHILD, return
	  it; analogous to the way this code handles the_pipeline
	- waitchld: if we find a child via find_pipeline that is a part of the
	  last process substitution child, mark that child appropriately.  If
	  the child is dead, add it to the bgp list.  This and the previous
	  change allow waiting for the most recent process substitution (the
	  one corresponding to $!).  Original report from Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   3/10
				   ----
arrayfunc.c
	- unbind_array_element: make sure skipsubscript() doesn't try to parse
	  embedded quotes in the subscript, since this has already been through
	  one round of word expansion before calling the unset builtin.  (This
	  function is only called by the unset builtin).  Fixes bug reported by
	  <vampyrebat@gmail.com>

				   3/17
				   ----
jobs.c
	- waitchld: move code that adds the last process substitution pid to
	  the bgpids array from waitchld (where it can call malloc in a signal
	  handler context) to cleanup_dead_jobs

				   3/19
				   ----
subst.c
	- parameter_brace_expand: if expanding an array in a context where word
	  splitting will not take place (W_ASSIGNRHS only for now), make sure
	  to pass the double-quoted flag to chk_atstar so we don't get the
	  unquoted $* behavior, which will cause unwanted word splitting.
	  Fixes bug reported by isabella parakiss <izaberina@gmail.com>

arrayfunc.c
	- unbind_array_element: don't assume that caller will check and pass
	  only array variables; don't allow non-array variables to be unset
	  using the `@' or `*' subscripts and don't allow any subscripts other
	  than 0; return -2 in those cases
	- unbind_array_element: unset a non-array variable if passed a subscript
	  of `0' (e.g., `unbind "scalar[0]"').  This is new functionality that
	  parallels the ${scalar[0]} expansion

builtins/set.def
	- unset_builtin: don't check whether a variable is an array if it's
	  referenced using array syntax (scalar[0]); pass it to
	  unbind_array_element anyway and check the result.  This means that
	  `unset scalar' and `unset scalar[0]' are equivalent

				   3/20
				   ----
builtins/set.def
	- set_builtin: make `-i' an invalid option, unconditionally for now.
	  From a bug-bash discussion started by Peng Yu <pengyu.ut@gmail.com>

				   3/21
				   ----
lib/readline/colors.c
	- _rl_print_color_indicator: handle dangling symlinks (C_ORPHAN) and
	  the `target' specifier for links (dereference S_ISLNK if the target
	  exists).  Bug report and fix from andreas@stapelspeicher.org

{arrayfunc,subst}.c
	- add code to save and restore this_command_name in places that set
	  this_command_name to NULL to prevent error messages from arithmetic
	  evaluation.  Fixes bug reported by brian.carpenter@gmail.com

builtins/mapfile.def
	- do_chop: remove a new DELIM argument from the line, instead of
	  unconditionally removing newline
	- mapfile: if -d delim is supplied and we are breaking fields at DELIM,
	  remove DELIM if the -t option is supplied by passing DELIM to do_chop().
	  Suggested by Geir Hauge <geir.hauge@gmail.com>

doc/{bash.1,bashref.texi}
	- mapfile: document new -t option behavior, defaults are the same

builtins/alias.def
	- print_alias: if the first character of an alias name is `-', add a
	  `-- ' after `alias' to avoid option errors when trying to reuse the
	  output.  Bug report and fix on savannah from Pasha Bolokhov
	  <pasha.bolokhov@gmail.com>

				   3/22
				   ----
builtins/declare.def
	- declare_internal: if creating a variable does not return a valid
	  variable in VAR, check for null variable before dereferencing it.
	  This happens with nameref variables referencing variables set to
	  the empty string.
	  Fixes bug reported by Arthur200000 <arthur200126@163.com> 

				   3/23
				   ----
doc/{bash.1,bashref.texi}
	- INVOCATION: add language to make it clear that non-interactive login
	  shells execute ~/.bash_logout if they run the `exit' builtin.  From a
	  question from Christoph Anton Mitterer <calestyo@scientia.net>

				    4/6
				    ---
subst.c
	- process_substitute: increment and decrement subshell_level around
	  calls to parse_and_execute, as in command substitution, so
	  $BASH_SUBSHELL gets new values in the subshell.  Fixes inconsistency
	  pointed out by Peng Yu <pengyu.ut@gmail.com>

doc/{bash.1,bashref.texi}
	- read: add clarifying text to note that the -N option does not split
	  on $IFS, but does retain backslash as an escape character subject
	  to -r.  Report from isabella parakiss <izaberina@gmail.com>

builtins/declare.def
	- declare_internal: unless it's the last statement in a {...} block,
	  NEXT_VARIABLE must be protected by braces.  Bug introduced in patch
	  from 3/22, reported by Eduardo A. Bustamante LÃ³pez
	  <dualbus@gmail.com>

				    4/7
				    ---
parse.y
	- shell_getc: if bash is reading input from a string that ends with an
	  unquoted backslash, add another backslash instead of a newline, since
	  the backslash and newline will disappear in normal processing.  Fixes
	  bug with `bash -c 'eval \\; echo y' ' skipping the eval command and
	  setting incorrect exit status, and `bash -ic 'eval \\; echo y' '
	  seeing EOF on empty line and exiting before the echo.  Keep track of
	  backslash state with last_was_backslash; set in char reading loop.
	  Fixes bug reported by Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				    4/8
				    ---
shell.c
	- main: check for $INSIDE_EMACS as well as $EMACS when deciding whether
	  or not bash is being run in a GNU emacs shell window.  Don't bother
	  checking whether $TERM is unset because variable initialization sets
	  it to `dumb' if unset.  Fixes from Paul Eggert <eggert@CS.UCLA.EDU>

parse.y
	- push_token: new function, rotates current_token through last_read_token,
	  saving old values like yylex() does, sets current_token to argument

evalfile.c
	- _evalfile: if current_token is yacc_EOF, push a newline as the value
	  of current_token instead, using push_token().  yacc_EOF can result if
	  sourced file doesn't end with a newline but does end with an unescaped
	  backslash.  Fixes bug reported by Pedro Gimeno
	  <pgwr-842@personal.formauri.es>

lib/readline/histfile.c
	- use PARAMS(x) instead of __P(x).  Bug reported by Evan Gates
	  <evan.gates@gmail.com>

				    4/9
				    ---
execute_cmd.c
	- execute_simple_command: if we haven't already forked, and we have
	  created FIFOs, turn off the no-fork optimization in the simple
	  command's flags. Originally reported to savannah by Kuang-che Wu as
	  https://savannah.gnu.org/support/index.php?108732

				   4/10
				   ----
trap.c
	- trap_if_untrapped: new function, sets a trap on a signal if that
	  signal is not already trapped
	- maybe_set_debug_trap: new function, sets DEBUG trap to command string
	  argument only if it's not already trapped

trap.h
	- maybe_set_debug_trap: new extern declaration


builtins/source.def
	- source_builtin: if the -T option isn't set, use maybe_set_debug_trap
	  in the unwind-protect instead of unconditionally restoring the old
	  trap string. That means if the sourced file changes the DEBUG trap,
	  that new trap will persist instead of being undone when the old
	  value is restored. Fixes bug reported by Scott Bronson
	  <bronson@rinspin.com>

builtins/evalstring.c
	- parse_string: before we jump to top_level, if we are at the `bottom'
	  of the parse_and_execute stack (parse_and_execute_level == 0), call
	  top_level_cleanup() before jumping so the right cleanup happens (e.g.,
	  cleaning up redirections and other state).  Fixes bug reported by
	  Sam Liddicott <sam@liddicott.com>

				   4/15
				   ----
jobs.c
	- delete_job: only add J_ASYNC (and not J_FOREGROUND) jobs to the
	  bgpids array, since Posix says shells only need to save the status
	  of async jobs.  Report and fix from John Fremlin <john@fb.com>

				   4/17
				   ----
pcomplib.c
	- COMPLETE_HASH_BUCKETS: increase to 256 since bash-completion is
	  over 300 completions by now

variables.c
	- VARIABLES_HASH_BUCKETS: constant used to size shell variables hash
	  table instead of relying on hash library default.  Used in calls
	  to hash_create in create_variable_tables(), push_temp_var(), and
	  push_func_var().  Currently set to 1024 because why not?  From a
	  discussion starting at
	  https://lists.gnu.org/archive/html/bug-bash/2015-04/msg00089.html
	- initialize_shell_variables: if FUNCTION_IMPORT is not defined, the
	  nested conditional compilation causes syntax errors.  Bug and fix
	  from Eric Blake <eblake@redhat.com>

configure.ac
	- function-import: fix typo, assign to correct variable.  Found as the
	  result of a report by Eric Blake <eblake@redhat.com>

shell.c
	- open_shell_script: check whether or not file argument is a
	  directory before opening; Posix says that implementations may open
	  a directory with O_RDONLY.  Bug report from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   4/19
				   ----
ulimit.def
	- fix typo in limits[] declaration of `k'

				   4/20
				   ----
configure.ac
	- add template definitions set by AC_USE_SYSTEM_EXTENSIONS from a report
	  from Andreas Schwab <schwab@linux-m68k.org>

variables.c
	- FUNCTIONS_HASH_BUCKETS: constant used to size the hash tables used for
	  shell functions and the text of shell function definitions.  Initially
	  set to 512, even though it's a really rare case that someone has more
	  than around 150 functions, even with bash-completion

				   4/21
				   ----
shell.c
	- main: malloc_set_register: change arg to 0 to disable keeping track of
	  allocations and frees in table; change to 1 for malloc debugging on
	  demand.  Table is too small to keep effective track of allocations on
	  a modern system, need to use something like valgrind

				   4/22
				   ----
shell.c
	- main: move cmd_init() (initialize word desc and word list object
	  caches) after startup files are read so the cache doesn't get filled
	  up with semi-permanent storage for shell functions and variables

execute_cmd.c
	- execute_function: use maybe_set_debug_trap in the same way as source
	  builtin change from 4/10 to allow functions to reset a DEBUG trap
	  when set -T not in effect.  From a report by Peng Yu
	  <pengyu.ut@gmail.com>

				   4/23
				   ----
execute_cmd.c
	- execute_disk_command: don't overwrite value of subshell_environment
	  by assigning SUBSHELL_FORK; just OR in SUBSHELL_FORK so something
	  like SUBSHELL_ASYNC or SUBSHELL_PIPE is preserved

jobs.c
	- wait_for: don't call give_terminal_to if running in a subshell
	  environment, not just if running_in_background is set; don't want
	  shell functions waiting for a process to complete in a pipeline to
	  give the terminal to the wrong process group.  Part of fix for bug
	  reported by Valentin Bajrami <valentin.bajrami@gmail.com>
	- make_child: child process should not try to give the terminal to the
	  pipeline_pgrp if running as part of a pipeline (SUBSHELL_PIPE in
	  subshell_environment); functions in execute_cmd.c don't set that
	  flag until after make_child returns and the child process is running.
	  Rest of fix for bug reported by Valentin Bajrami
	  <valentin.bajrami@gmail.com>

				   4/24
				   ----
redir.c
	- redirection_error: if the redirection involves {varname}, only use
	  `varname' in the error message if the error code is < 0 (one of the
	  internal redirection errors, like ambiguous or bad variable name);
	  otherwise the issue is probably with the filename and should be treated
	  as usual.  Fixes problem reported by Dr. David Alan Gilbert
	  <dgilbert@redhat.com>

configure.ac,config.h.in
	- sys/ioctl.h: add check in AC_CHECK_HEADERS macro, define HAVE_SYS_IOCTL_H

lib/readline/{rltty,terminal}.c
	- sys/ioctl.h: include unconditionally for ioctl declaration, avoid
	  issues with `implicit declaration' warnings.  Issue originally
	  raised on gdb list by Chen Gang <xili_gchen_5257@hotmail.com>

				   4/27
				   ----
lib/malloc/table.c
	- mem_table: now a circular buffer showing the state of the last
	  REG_TABLE_SIZE allocations rather than a hash table that quickly
	  fills up

builtins/declare.def
	- typeset_builtin: add -n to list of supported options.  Omission
	  reported by Valentin Bajrami <valentin.bajrami@gmail.com>

unwind_prot.c
	- use object caches instead of malloc/free to allocate and deallocate
	  unwind-protect elements
	- uwp_init: initialize unwind-protect element object cache

unwind_prot.h
	- uwp_init: extern declaration

shell.c
	- main: call uwp_init right after calling cmd_init -- initialize all the
	  object caches at the same place

lib/malloc/table.[ch]
	- mlocation_table: new table to keep track of allocation locations by
	  file and line, functions to initialize table, record an allocation,
	  and dump the table to stderr
	- mregister_alloc: call mlocation_register_alloc to record the location
	  (source file/line) for each allocation to pinpoint malloc hot spots
	  by number of calls.  More detail than gprof

parse.y
	- set_line_mbstate: replace free/xmalloc pair with xrealloc call
	- read_token_word: call alloc_word_desc instead of xmalloc so we can take
	  advantage of the WORD_DESC cache

				   4/28
				   ----
execute_cmd.c
	- execute_simple_command: if command execution fails because the command
	  is a directory, and the `autocd' option is set, add a `--' argument
	  to the constructed `cd' command to protect against command names with
	  the same name as options to `cd'.  Report and fix from
	  isabella parakiss <izaberina@gmail.com>

				   4/30
				   ----
jobs.c
	- printable_job_status, j_strsignal: change calls to strcpy and sprintf
	  that write to retcode_name_buffer to use strncpy and snprintf to
	  avoid buffer overflows caused by malicious translations.  Bug and fix
	  from Trammell Hudson <Trammell.Hudson@twosigma.com>

				    5/1
				    ---
strtrans.c
	- ansicstr: make sure the buffer is at least 12 bytes to ensure enough
	  space for any eventual call to u32cesc for one multibyte char

				    5/4
				    ---
jobs.c
	- wait_for: if an interactive shell is running a loop and waiting for
	  a non-builtin command to exit, and the command exits due to SIGINT,
	  act as if the shell received the SIGINT as well and break the loop.
	  This matches the behavior when the shell is running a builtin command
	  in a loop, and when running a non-builtin command outside a loop, and
	  seems more broadly useful than running the trap handler over and over
	  again.  Report originally from Kaz Kylheku <kkylheku@gnu.org>

builtins/set.def
	- unset_builtin: use different variables for keeping the state of the
	  -f and -v options than the loop uses to decide whether or not to
	  treat a name as a function or a variable.  Fixes problem with
	  unset_function setting `sticking' after you unset a function when
	  invoked with no options.  Bug report from Dreamcat4
	  <dreamcat4@gmail.com>

shell.c
	- open_shell_script: set running_shell_script to 1, set to 0 in every
	  other case (new variable)
	- main: when checking whether or not to call start_debugger, test
	  running_shell_script instead of dollar_vars[1].  The goal is to not
	  invoke the debugger for interactive shells but allow it to run for
	  things like `bash --debugger -i /tmp/script'.  Problem reported by
	  Rocky Bernstein <rocky@gnu.org>

lib/readline/histexpand.c
	- history_event_delimiter_chars: new (as yet undocumented) variable
	  containing by default characters that can delimit a history event
	  specifier without requiring a `:': "^$*%-" as the documentation has
	  always said.  Fixes bug reported by Anders Granlund
	  <anders.granlund.0@gmail.com>

				   5/10
				   ----
lib/glob/gmisc.c
	- match_pattern_char, match_pattern_wchar: if passed an empty string,
	  return a match if the first character of the pattern is `*'

subst.c
	- pat_subst: change to allow empty strings to be replaced as long as
	  pattern matches empty string.  Report and fix from isabella parakiss
	  <izaberina@gmail.com>

				   5/12
				   ----
lib/sh/strtrans.c
	- ansic_wshouldquote: make behavior consistent in the event of an
	  invalid multibyte sequence: return 1 to the caller so the string
	  will be $'...' quoted

builtins/cd.def
	- cd_builtin: print the right error message even if printable_filename
	  changes errno (e.g., EILSEQ)

lib/sh/shquote.c
	- sh_backslash_quote: in multibyte locales, even if is_basic does not
	  return true, backslash-quote an ASCII character that backslash_table
	  says should be quoted.  Part of fix for bug reported by Igor
	  Bogomazov <ygrex@ygrex.ru>

bashline.c
	- directory_exists: new function, dequotes the string argument, removes
	  any trailing slash, and returns true if the result is a valid
	  existing filename
	- bash_filename_stat_hook,bash_directory_completion_hook: use
	  directory_exists instead of calling lstat/stat on the quoted
	  directory name.  Rest of fix for bug reported by Igor Bogomazov
	  <ygrex@ygrex.ru>

				   5/15
				   ----
aclocal.m4
	- BASH_CHECK_MULTIBYTE: when checking for locale_charset, add $LIBINTL
	  to $LIBS.  If we're using the included lib/intl/libintl.a, it will
	  include a version of locale_charset

				   5/17
				   ----
lib/readline/bind.c
	- sv_isrchterm: make sure we check for v[end] == 0 while in the loop
	  looking for whitespace.  Bug report and fix from Sergio Durigan
	  Junior <sergiodj@sergiodj.net>

lib/sh/shmbchar.c
	- mbstrlen,mbsmbchar: move calculation of MB_CUR_MAX out of loop;
	  calculate it once at beginning

lib/sh/mbscmp.c
	- mbscmp: move calculation of MB_CUR_MAX out of loop; calculate it once
	  at beginning

lib/sh/mbscasecmp.c
	- mbscasecmp: move calculation of MB_CUR_MAX out of loop; calculate it
	  once at beginning

lib/sh/shquote.c
	- sh_backslash_quote: move calculation of MB_CUR_MAX out of loop;
	  calculate it once at beginning

lib/sh/casemod.c
	- sh_modcase: move calculation of MB_CUR_MAX out of loop; calculate it
	  once at beginning

subst.c
	- expand_word_internal: move calculation of MB_CUR_MAX out of loops;
	  calculate it once at beginning of function (XXX should use
	  locale_mb_cur_max)

				   5/22
				   ----
lib/readline/rlmbutil.h
	- _rl_wcwidth: new function, short-circuits wcwidth calls for ASCII
	  printable characters, returns 1 for those
	- WCWIDTH: call _rl_wcwidth instead of wcwidth

lib/readline/display.c
	- rl_redisplay: move calculation of MB_CUR_MAX out of loop; calculate
	  it once at beginning.  Report and patch from Ole Laursen
	  <ole.laursen@gmail.com>

				   5/24
				   ----
lib/readline/text.c
	- rl_insert: change to attempt to batch-insert pending typeahead (not
	  pushed input or input from a macro) that maps to rl_insert.  An
	  attempt to suppress redisplay until readline reads all typeahead --
	  pasted input, for instance.  Inspired by report from Ole Laursen
	  <ole.laursen@gmail.com>.  XXX - need to make this a bindable
	  variable; already controlled by _rl_optimize_typeahead

lib/readline/rlprivate.h
	- _rl_optimize_typeahead: extern declaration

lib/readline/doc/{hstech.texi,history.3}
	- next_history: clarify under what circumstances the history offset is
	  incremented; suggestion from Glenn Golden <gdg@zplane.com>

print_cmd.c
	- print_arith_command: should be compiled in if either DPAREN_ARITHMETIC
	  or ARITH_FOR_COMMAND is defined.  Report from Flavio Medeiros
	  <flaviomotamederios@gmail.com>

flags.c
	- change_flag: new variable verbose_flag, set when `v' flag modified;
	  sets value of echo_input_at_read correspondingly

flags.h
	- verbose_flag: new extern declaration

shell.c
	- long_options: --verbose now sets verbose_flag
	- main: set echo_input_at_read from verbose_flag after parsing any
	  long options

builtins/fc.def
	- fc_builtin: don't unwind-protect echo_input_at_read directly; set it
	  to 1 before calling fc_execute_file as before, and reset it to value
	  of global verbose_flag using set_verbose_flag called from an
	  unwind_protect.  Report from isabella parakiss <izaberina@gmail.com>

builtins/shopt.def
	- shopt_set_debug_mode: new function, called when the extdebug shell
	  option changes.  Right now, it sets function_trace_mode when extdebug
	  is enabled, and turns off when extdebug is disabled.  The
	  documentation has always said that shopt does this.  Report from
	  Peng Yu <pengyu.ut@gmail.com>

				   5/27
				   ----
findcmd.[ch]
	- add support for EXECIGNORE shell variable, list of extglob patterns
	  that prevent matching filenames from being identified as executable
	  files

variables.c
	- EXECIGNORE: arrange for findcmd.c:setup_exec_ignore to be called when
	  $EXECIGNORE changes

variables.h
	- sv_execignore: extern declaration

doc/{bash.1,bashref.texi}
	- document EXECIGNORE variable

				   5/28
				   ----
lib/readline/callback.c
	- rl_callback_sigcleanup: new function, cleans up and unsets any state
	  rl_callback_read_char uses.  Intended to be used after a signal

lib/readline/signals.c
	- _rl_handle_signal: call rl_callback_sigcleanup on SIGINT.  Fixes bug
	  reported to python group by Martin Panter <vadmium+floss@gmail.com>

lib/readline/isearch.c
	- _rl_isearch_cleanup: now a public function so rl_callback_cleanup can
	  call it

lib/readline/search.c
	- _rl_nsearch_cleanup: now a public function so rl_callback_cleanup can
	  call it

lib/readline/rlprivate.h
	- _rl_[in]search_cleanup: extern declarations

lib/readline/readline.h
	- rl_callback_sigcleanup: new extern declaration

lib/readline/doc/rltech.texi
	- rl_callback_sigcleanup: documented

lib/readline/readline.h
	- bump readline version to 7.0 due to addition of rl_callback_sigcleanup

				   5/29
				   ----
builtins/declare.def
	- declare_internal: if we are trying to change attributes or value for
	  a nameref variable whose value points to an unset variable, make
	  sure we create a new variable whose name is the value of the nameref
	  variable. That is,

		declare -n foo=bar
		unset foo	# unsets bar
		declare -i foo

	  should create a (invisible) variable named `bar' with the integer
	  attribute.  Fixes problem reported by Greg Wooledge
	  <wooledg@eeg.ccf.org>

builtins/set.def
	- unset_builtin: if we find a nameref variable when we look it up with
	  find_variable (the returned variable has a name different from what
	  we looked up), make sure we use that new name for the rest of the
	  function rather than rely on unbind_variable to do the same thing as
	  find_variable.  Fixes problem reported by Greg Wooledge
	  <wooledg@eeg.ccf.org>
	- unset_builtin: if we try to unset a nameref variable whose value is
	  not a set variable, make sure we don't try to unset the nameref
	  itself, but rather the variable it points to.  This ensures that the
	  following always works as it should

		declare -n foo=bar
		unset foo	# unsets bar and leaves foo unchanged

lib/readline/funmap.c
	- vi-insertion-mode: make sure it maps to rl_vi_insert_mode, which is
	  actually what the `i' keybinding in vi_movement_keymap maps to.
	  Cosmetic fix from isabella parakiss <izaberina@gmail.com>

				    6/2
				    ---
general.c
	- conf_standard_path: moved get_standard_path here from command.def; made
	  public function

general.h
	- conf_standard_path: extern declaration


				    6/3
				    ---
parse.y
	- parse_matched_pair: make sure that command substitution constructs
	  within ${...} expansions are parsed as such using parse_comsub, so
	  the P_FIRSTCLOSE flag doesn't stop parsing if a right brace appears
	  within the comsub.  Report from Christos Zoulas <christos@zoulas.com>

findcmd.c
	- search_for_command: take two new flags for FLAGS arg: CMDSRCH_STDPATH,
	  which means use the command -p path, and CMDSRCH_TEMPENV, currently
	  unused.  Existing flag value of 1 now CMDSRCH_HASH
	- search_for_command: don't set `path' to NULL if it wasn't found in
	  the temporary environment; we can use it later
	- search_for_command: look for the hashed file if temp_path == 0, not
	  if we set path back to 0 (or path lookup failed)
	- search_for_command: just call find_user_command_in_path with a
	  pathlist argument that's set depending on the flags passed
	- find_in_path: new function, just calls find_user_command_in_path at 
	  this point
	- search_for_command: don't put non-existent files into the hash table

findcmd.h
	- CMDSRCH_*: new flags for search_for_command
	- find_in_path: extern declaration

execute_cmd.c
	- execute_disk_command: check for CMD_STDPATH and call search_for_command
	  with CMDSRCH_STDPATH if it's set

builtins/command.def
	- command_builtin: if -p given without -v or -V, set the CMD_STDPATH
	  flag in the simple command we construct from the rest of the
	  argument list.  This fixes the command -p cmd issue with changing
	  $PATH for the duration  of `cmd's execution reported by
	  <sdowdy@rap.ucar.edu>

builtins/common.h
	- CDESC_STDPATH: new flag for describe_command; means to use standard
	  path for command -pv or -pV

builtins/command.def
	- command_builtin: if -p given with -v or -V, pass the CDESC_STDPATH
	  flag to describe_command

builtins/type.def
	- describe_command: if given the CDESC_STDPATH flag, use find_in_path
	  with the conf_standard_path() result. Since `all' will never be on
	  with this flag, at least not yet, we can allocate and free the path
	  list.  Fixes the bug of a temporary environment value for PATH
	  preceding a `command -pv' or `command -pV' persisting when the
	  command finishes and means we use fewer unwind-protects

				    6/4
				    ---
Makefile.in (plus other Makefile.ins)
	- VPATH: remove `.' from VPATH value.  It's not needed any more and it
	  trips a GNU make 4.1 bug on Cygwin.  Report and fix from Eric Blake
	  <eblake@redhat.com>

lib/readline/histfile.c
	- history_tempfile: new function, takes history file name as template
	  and creates a temp file name including the PID
	- history_truncate_file, history_do_write: instead of creating backup
	  and restoring it on failure, use history_tempfile to create a temp
	  file name, write to it, then rename to original history filename
	  (handling symlinks using history_restore()).  Original report and
	  patch from Russell Stuart <russell-savannah@stuart.id.au>

doc/{bash.1,bashref.texi}
	- ulimit: clarify that -c and -f are in increments of 512 bytes when
	  in posix mode.  Fix from Robin Johnson <robbat2@gentoo.org> via
	  <vapier@gentoo.org>

				    6/9
				    ---
execute_cmd.c
	- execute_in_subshell: don't call restore_default_signal for the exit
	  trap, reset_signal_handlers already does the right thing and keeps
	  the trap string around; no need to kill trap string.  Bug report
	  from Miroslav Koskar <mk@mkoskar.com>

				   6/11
				   ----
nojobs.c
	- find_proc_slot: now takes pid as an argument to avoid finding old
	  procs when pids wrap around
	- add_pid: pass pid to find_proc_slot to avoid multiple instances of
	  the same pid in the list when pids wrap around.  Fixes bug reported
	  by Roy Keene <rkeene@rkeene.org>

execute_cmd.c
	- REAP: test for job_control == 0 also to determine whether or not
	  to call reap_dead_jobs, since shells without job control enabled
	  don't report on background process status

doc/bash.1,lib/readline/doc/hsuser.texi
	- history: clarify documentation of -a option to note that it will not
	  append the same line to the history file more than once.  Fixes
	  problem reported by Reuben Thomas <rrt@sc3d.org>

				   6/12
				   ----
execute_cmd.c
	- execute_in_subshell: don't bother decrementing subshell_level before
	  this returns; the caller will just exit.  This means that
	  $BASH_SUBSHELL will have consistent values in the subshell and any
	  subsequent exit trap.  Fixes bug reported by Miroslav Koskar
	  <mk@mkoskar.com>
	- shell_execve: before longjmp to subshell_top_level, call reset_parser
	  to free up any input line and stack of pushed strings

parse.y
	- mk_alexpansion: if the last character of the alias is a shell
	  metacharacter, don't add a space to the string following the alias
	  value, since that will change the meaning of the command.  THIS IS
	  NOT BACKWARDS COMPATIBLE AND MAY REQUIRE REVERTING. Inspired by an
	  email message from Jilles Tjoelker <jilles@stack.nl> to austin
	  group

				   6/13
				   ----
subst.c
	- dequote_string: don't turn strings consisting of a single CTLESC
	  into empty strings; return them unmodified.  The idea is that there
	  is nothing to quote.  This means that something like
		c=$'\001'
		x=$c
	  results in x containing '\001' when IFS=$'\001'.  See if this will
	  cause problems by adding a debugging statement in the code

				   6/15
				   ----
parse.y
	- CHECK_FOR_RESERVED_WORD: don't return ESAC when you read `esac'
	  after a `|' while in a case pattern list (parser_state & PST_CASEPAT).
	  This is Posix grammar rule 4
	  (http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_10_02)

				   6/16
				   ----
jobs.c
	- wait_for: make sure we queue SIGCHLD signals if a SIGCHLD trap
	  handler is running (signal_in_progress or IMPOSSIBLE_TRAP_HANDLER),
	  since we allow recursive trap invocations now
	- wait_for: make sure we treat SIGCHLD as trapped if the trap handler
	  is set to IMPOSSIBLE_TRAP_HANDLER so we don't miss signals during
	  calls to run_sigchld_trap()

trap.c
	- run_pending_traps: since we allow recursive trap handler invocations,
	  make sure we set pending_traps[SIGCHLD] to 0 while we mark the
	  signal handler in progress (SIG_INPROGRESS) and don't reset it to 0
	  after run_sigchld_trap returns in case more SIGCHLDs have been
	  queued while it's running

				   6/22
				   ----
lib/readline/readline.c
	- _rl_dispatch_subseq: if we shadowed any function, not just self-
	  insert, bind that function to the key we shadowed and dispatch on it.
	  This preserves and dispatches off the original key, not ANYOTHERKEY,
	  and makes sure we are dispatching from a keymap with the right key
	  binding.  Fixes bug reported by Carlos Pita
	  <carlosjosepita@gmail.com>

				   6/23
				   ----
bashline.c
	- attempt_shell_completion: don't read past the end of rl_line_buffer
	  while skipping assignment statements before command names.  Fix for
	  bug reported by Hanno BÃ¶ck <hanno@hboeck.de>

lib/readline/parens.c
	- _rl_enable_paren_matching: make paren matching work in vi insert
	  mode. Really, this time.  Bug report from Carlos Pita
	  <carlosjosepita@gmail.com>

				   6/29
				   ----
parse.y
	- parse_comsub: when starting to parse a word, make sure that we set
	  lex_rwlen to 0 along with lex_wlen if we are in a position where we
	  can read a reserved word.  Fixes bug reported by  Nathan Neulinger
	  <nneul@neulinger.org>

				   6/30
				   ----
sig.h
	- include <signal.h> unconditionally and rely on guards in sig.h to
	  keep from including it more than once.  Irix 6.5 defines SIG_DFL
	  in other files and defeats the test of SIG_DFL.  Fixes bug
	  reported by Klaus Ziegler <klausz@haus-gisela.de>

alias.c
	- ALIAS_HASH_BUCKETS: table size increased to 64

				    7/7
				    ---

{jobs,nojobs}.c
	- wait_sigint_cleanup: new function, to be called by longjmp targets
	  for wait_intr_buf. Performs any necessary cleanup of internal waitchld
	  state before going back to top level

jobs.h
	- wait_sigint_cleanup: new extern declaration

builtins/wait.def
	- wait_builtin: call wait_sigint_cleanup after longjmp back to
	  wait_intr_buf on interrupt

[bash-4.4-alpha frozen]

				    7/7
				    ---
bashline.c
	- attempt_shell_completion: when skipping assignment statements, don't
	  skip past rl_point to find the word on which to perform programmable
	  completion.  Fixes bug reported by Hanno BÃ¶ck <hanno@hboeck.de>

				   7/10
				   ----

pcomplib.c
	- compspec_copy: set the refcount on the copy to 1, since it's a freshly
	  allocated copy and there are no other pointers to it.  Fixes memory
	  leak from gen_progcomp_completions

lib/readline/complete.c
	- printable_part: if the pathname passed is just `/', just return it
	  instead of potentially reading before the `/'.  Fixes bug reported
	  by Hanno BÃ¶ck <hanno@hboeck.de>

				   7/11
				   ----
support/man2html.c
	- change calls to malloc to use xmalloc; provide standard xmalloc
	  definition.  Report from Bill Parker <wp02855@gmail.com>

builtins/wait.def
	- wait_intr_flag: set to denote validity of wait_intr_buf as target
	  for longjmp; reset by WAIT_RETURN macro; should always be 0 when
	  wait_builtin returns

quit.h
	- CHECK_WAIT_INTR: now also checks wait_intr_flag to ensure valid state
	  of wait_intr_buf before sh_longjmp

{jobs,nojobs}.c
	- wait_intr_flag: extern declaration for use by CHECK_WAIT_INTR

sig.c
	- wait_intr_flag: set back to 0 every place the shell resets state after
	  a jump to top_level
	- sigint_sighandler: only set wait_signal_received if wait_intr_flag
	  indicates that the wait builtin has correctly set wait_intr_buf.
	  Final fix for bug reported by Ondrej Oprala <ooprala@redhat.com>

subst.c
	- parameter_brace_expand: fix so that ${!vvv@} is not interpreted as
	  introducing a `@' operator, but instead retains its meaning as all
	  variables whose name begins with vvv.  Fixes bug reported by
	  konsolebox <konsolebox@gmail.com>

				   7/14
				   ----
execute_cmd.c
	- execute_connection: remove the fork optimization from and AND_AND
	  and OR_OR cases; it has trouble with `a && b && c', since the `&&'
	  is left-associative.  Putting that code here can result in unwanted
	  fork optimizations since the `b' will end up as `second' on a
	  recursive call to execute_command.  Bug reported by Mike Frysinger
	  <vapier@gentoo.org>

builtins/evalstring.c
	- optimize_fork: moved code from execute_connection to here; checks
	  whether the RHS of a && or || passes the suppress_fork() tests and
	  turns on the NO_FORK bit if so
	- parse_and_execute: if suppress_fork() tests fail, check whether the
	  command to be executed is a connection and attempt to optimize the
	  fork for the right side using optimize_fork().  The key is dealing
	  with the entire command passed to `bash -c' or `eval'

builtins/common.h
	- optimize_fork: new extern declaration

execute_cmd.c
	- execute_command_internal: enable code put in to undo redirections
	  before exiting the shell due to `set -e' in the case of a shell
	  function that gets command-not-found or a syntax error.  Reported
	  back in May, 2014 by Mark Ferrell <major@homeonderanged.org>

bashhist.c
	- bash_history_inhibit_expansion: enable change from 1/10 that skips
	  over history expansion character in command and process
	  substitution

				   7/15
				   ----
lib/readline/{history,undo}.c
	- replace_history_data now _hs_replace_history_data

				   7/16
				   ----
lib/readline/readline.c
	- make sure _rl_to_lower doesn't ever get characters that are outside
	  of its valid range by casting arg to unsigned char

lib/readline/colors.h
	- change completion prefix color (C_PREFIX) to be the same as C_SOCK,
	  which is less likely to collide with file type colorings (magenta)

lib/readline/complete.c
	- fnprint: now takes an additional argument: the full, expanded pathname
	  corresponding to the `toprint' argument
	- fnprint: don't zero out prefix_bytes if we're not printing the
	  ellipisis but we still want to use prefix_bytes for displaying
	  the common prefix in a color
	- print_filename: move colored-stats display responsibility into fnprint
	- fnprint: change so colored-prefix and colored-stats can cooperate
	  and display filenames with multiple colors: one for the prefix and
	  one for the file type.  The prefix is displayed in the prefix color
	  and the remainder of the pathname, if any, is displayed in the color
	  corresponding to the file type.  Report and suggestion from Mike
	  Frysinger <vapier@gentoo.org>

				   7/17
				   ----
lib/readline/readline.[ch]
	- rl_readline_state: now unsigned long, prepare for more than 32 states


				   7/18
				   ----
lib/readline/history.h
	- history_offset: now declared here, was always a global variable
	- copy_history_entry: now declared here, part of the public interface
	- alloc_history_entry: now declared here, part of the public interface

				   7/20
				   ----
lib/readline/readline.h
	- RL_STATE_CHARSEARCH: new state, for vi mode character search.  Was
	  previously handled by simply setting _rl_callback_func

lib/readline/vi_mode.c
	- rl_domove_motion_callback: split into two functions, remaining code
	  after _rl_dispatch call goes into new function
	  _rl_vi_domove_motion_cleanup
	- rl_vi_char_search: set RL_STATE_CHARSEARCH
	- rl_vi_char_search: sets `i2' member of callback data to the key used
	  to invoke the char search
	- _rl_vi_callback_char_search: unset RL_STATE_CHARSEARCH after reading
	  the character to find
	- _rl_vi_domove_motion_cleanup: make sure RL_STATE_VIMOTION is unset in
	  all cases where this function returns
	- _rl_vi_domove_motion_cleanup: use `end' member of vi motion context
	  as value of rl_end to restore after adding blank at end of line in
	  rl_domove_motion_callback; avoids need to keep `old_end' and somehow
	  pass it between the two functions

lib/readline/rlprivate.h
	- _rl_vi_domove_motion_cleanup: new extern declaration

lib/readline/callback.c
	- rl_callback_read_char: handle RL_STATE_CHARSEARCH, including case
	  where char search is vi motion command for d/c/y/m and RL_STATE_VIMOTION
	  is set when this is called.  Last of set of fixes for bug reported
	  by Carlos Pita <carlosjosepita@gmail.com> with vi-mode `dty' command
	  in callback mode

				   7/21
				   ----
subst.c
	- command_substitute, process_substitute: add QUIT call in the child
	  after restoring original signal handlers to catch post-fork SIGINT
	  or terminating signal

jobs.c,nojobs.c
	- make_child: after forking, clear interrupt_state in child
	  before restoring signal mask so children get their own set of
	  interrupts

				   7/22
				   ----
lib/sh/shquote.c
	- sh_double_quote: since all uses of the return value from this function
	  are for display and not subject to subsequent expansion, we don't
	  need to protect CTLESC and CTLNUL with CTLESC.  Bug report and fix
	  from isabella parakiss <izaberina@gmail.com>

parse.y
	- decode_prompt_string: need to protect literal instances of CTLESC
	  and CTLNUL with CTLESC, even if they are not coming out of one of
	  the backslash-expansions

subst.c
	- make_internal_declare: fixed memory leak; make_internal_declare should
	  free the memory it allocates to construct the word list.  From Red
	  Hat bug 1245233; https://bugzilla.redhat.com/show_bug.cgi?id=1245233

lib/readline/readline.c
	- _rl_dispatch_subseq: when checking whether an ESC in vi insert mode
	  should be treated as part of a key sequence or as a single char,
	  make sure we are getting input from the keyboard before we check
	  _rl_input_queued().  If we are getting input from a macro, this
	  causes a needless delay.  Report from Carlos Pita
	  <carlosjosepita@gmail.com>

				   7/23
				   ----
input.c
	- save_bash_input: before checking to see whether or not a new fd has a
	  stale associated buffer, make sure that the new fd is within bounds.
	  Bug report and fix from Alexey Makhalov <makhaloff@gmail.com>


				   7/24
				   ----
doc/{bash.1,bashref.texi}
	- note that the `return' builtin accepts arguments beginning with `-'
	  without requiring `--'

				   7/27
				   ----
examples/loadables/Makefile.in
	- add variables and targets to support `make install'; installs
	  supported builtins in $(libdir)/bash

				   7/28
				   ----
lib/readline/{readline,rlprivate}.h, lib/readline/display.c
	- rearrange some structure members for better alignment and to reduce
	  padding.  Fix from <git-dpa@aegee.org>

tests/run-*
	- use BASH_TSTOUT instead of hardcoded /tmp/xx as output file

trap.[ch]
	- maybe_set_error_trap: set a trap for the ERR trap if it is not already
	  trapped; similar to maybe_set_debug_trap back from 4/10

lib/malloc/malloc.c
	- internal_free: make sure `ubytes' is initialized if MALLOC_WATCH is
	  defined and we'll be passing it to _malloc_ckwatch.  Report from
	  Flavio Medeiros <flaviomotamederios@gmail.com>

execute_cmd.c
	- execute_function: use maybe_set_error_trap in the same way as
	  maybe_set_debug_trap.  Fixes bug reported by David Waddell
	  <David.Waddell@owmobility.com>

				   7/29
				   ----
jobs.c
	- wait_for: no longer need to call job_signal_status when checking
	  whether a comsub shell reaped a child that died due to SIGINT; code
	  now uses child_caught_sigint

				   7/30
				   ----
builtins/exec.def
	- exec_builtin: after call to restore_original_signals, need to call
	  default_tty_job_signals to undo changes done by initialize_job_signals.
	  Fix for problem reported by Andreas Schwab <schwab@suse.de>

doc/{bash.1,bashref.texi}
	- clarify definition of metacharacter to explicitly include newline;
	  prompted by report from George Gallo <georgeggallo@gmail.com>

				    8/3
				    ---
lib/readline/search.c
	- _rl_free_history_entry: should be void, not int.  Report from
	  Dilyan Palauzov <dilyan.palauzov@aegee.org>

general.h
	- sh_load_func_t, sh_unload_func_t: new function pointer types, used by
	  enable for load and unload hook functions

builtins/enable.def
	- dyn_load_builtin: attempt to execute a function named
	  BUILTIN_builtin_load, where BUILTIN is the name of the command being
	  loaded.  If that function returns 0, the load fails
	- dyn_unload_builtin: attempt to execute a function named
	  BUILTIN_builtin_unload, where BUILTIN is the name of the command
	  being unloaded.  It offers a dynamic builtin a way to clean up after
	  itself.  Inspired by suggestion from Piotr Grzybowski
	  <narsil.pl@gmail.com> in response to a bug report from isabella
	  parakiss <izaberina@gmail.com>

				    8/6
				    ---
lib/readline/colors.[ch]
	- _rl_print_color_indicator: now takes `const char *' argument

lib/readline/complete.c
	- colored_stat_start: now takes `const char *' argument

lib/malloc/table.h
	- ma_table_t: `file' member is now `const char *'

lib/malloc/table.c
	- mlocation_register_alloc: make sure variable assigned to `file' in
	  ma_table_t is of type `const char *'.  Fixes from Dilyan Palauzov
	  <dilyan.palauzov@aegee.org>

lib/termcap/termcap.[ch]
	- tputs: should return int instead of void

lib/readline/readline.h
	- RL_STATE_DONE: correct value, avoid collision

lib/readline/vi_mode.c
	- _rl_vi_redoing: now global, added _rl_ prefix to `vi_redoing'

lib/readline/readline.c
	- _rl_subseq_result: call _rl_dispatch_subseq instead of rl_dispatch to
	  avoid changing _rl_dispatching_keymap
	- _rl_subseq_result: in the -2 case, set _rl_dispatching_keymap to the
	  map passed as an argument.  Without this, vi mode doesn't call
	  rl_vi_set_last when it should
	- _rl_dispatch_subseq: if redoing a vi mode command with `.'
	  (_rl_vi_redoing != 0) in callback mode and we're indirecting into
	  another keymap that has shadowed the key corresponding to the command
	  we are redoing, just call _rl_subseq_result immediately: vi redo
	  doesn't need to read any additional input, and rl_vi_redo assumes
	  that a single call to rl_dispatch is sufficient.  Fixes bug reported
	  by Carlos Pita <carlosjosepita@gmail.com>

				    8/7
				    ---
subst.c
	- parameter_brace_expand: if a substitution (parameter expansion) error
	  occurs, and shell_compatibility_level is <= 43, return expansion error
	  as in all previous versions.  If shell_compatibility_level is > 43,
	  a posix-mode non-interactive shell will consider this a fatal error.
	  Problem reported by Christian Neukirchen <chneukirchen@gmail.com>

doc/bashref.texi
	- documented that word expansion errors cause fatal errors in posix mode
	  non-interactive shells

				    8/8
				    ---
subst.h
	- SD_COMPLETE: skip_to_delim being called as part of word completion
	- SX_COMPLETE: one of the string_extract functions being called as
	  part of word completion

bashline.c
	- find_cmd_start,find_cmd_end,find_cmd_name: call skip_to_delim with
	  SD_COMPLETE flag

subst.c
	- skip_double_quoted: takes new flags argument; changed callers
	- skip_double_quoted: if flags argument includes SX_COMPLETE, pass it
	  to extract_command_subst
	- extract_command_subst: if flags&SX_COMPLETE, call
	  extract_delimited_string instead of xparse_dolparen, since completion
	  may call this for unterminated command substitutions.  Fixes
	  (imperfectly) bug reported by Ingo Ruhnke <grumbel@gmail.com>
	- skip_to_delim: if passed the SD_COMPLETE flag, pass the SX_COMPLETE
	  flag to skip_double_quoted 
	- char_is_quoted: pass SX_COMPLETE flag to skip_double_quoted
	- unclosed_pair: pass SX_COMPLETE flag to skip_double_quoted

				    8/9
				    ---
execute_cmd.c
	- time_command: catch longjmps to top_level and print command timing
	  statistics even after a jump to top_level.  Fixes issue reported by
	  Sam Watkins <sam@nipl.net>

				   8/10
				   ----
config-top.h
	- OPENLOG_OPTS: if SYSLOG_HISTORY is defined, define to LOG_PID, so
	  each message is tagged with the pid

bashhist.h
	- bash_syslog_history: the first time it's called, call openlog with
	  OPENLOG_OPTS and SYSLOG_FACILITY

				   8/11
				   ----
doc/{bash.1,bashref.texi}
	- GROUPS,FUNCNAME: change description to note that assignments are
	  silently ignored, but do not return an error (which would constitute
	  an assignment error and cause posix mode shells to abort).  Problem
	  pointed out by Grzegorz Bajson <gbajson@gmail.com>

				   8/12
				   ----
subst.c
	- parameter_brace_expand_indir: if the value of the indirectly expanded
	  variable isn't something that the shell would expand if it were inside
	  ${}, error out right away before calling parameter_brace_expand_word.
	  Fixes problem reported by isabella parakiss <izaberina@gmail.com>
	- parameter_brace_expand: handle returning &expand_wdesc_error or
	  &expand_wdesc_fatal from parameter_brace_expand_indir in case it does
	  that someday

				   8/13
				   ----
jobs.c
	- {save,restore}_pipeline: saved_pipeline now a linked list of pipelines,
	  new ones allocated in save_pipeline and freed in restore_pipeline.
	  This allow multiple nested calls to save_pipeline (e.g., in traps
	  and then in process substitution).  Fix for bug reported by isabella
	  parakiss <izaberina@gmail.com>

print_cmd.c
	- named_function_string: if printing a function with the same name as a
	  reserved word, add the `function ' keyword before the name to avoid
	  parsing problems when trying to reuse it as input.  Fix for bug
	  reported by isabella parakiss <izaberina@gmail.com>

				   8/14
				   ----
lib/readline/text.c
	- rl_insert: when optimizing typeahead, make sure we set rl_last_func
	  ourselves if we set pending input, since the mainline code path
	  won't set rl_last_func if input is pending.  Fixes bug reported by
	  Hiroo Hayashi <hiroo.hayashi@computer.org>

				   8/15
				   ----
builtins/type.def
	- describe_command: if using the short description (CDESC_SHORTDESC) in
	  posix mode, describe posix special builtins as such.  Requested by
	  Stephane Chazelas <stephane.chazelas@gmail.com>

builtins/enable.def
	- BASH_LOADABLES_PATH: a colon-separated list of directories where bash
	  looks for loadable builtins specified as arguments to `enable -f'

doc/{bash.1,bashref.texi}
	- BASH_LOADABLES_PATH: document new shell variable

configure.ac,Makefile.in,builtins/Makefile.in
	- loadablesdir: set in configure, substitute into Makefiles.  Reserved
	  for future use

				   8/18
				   ----
subst.c
	- shell_expand_word_list: if make_internal_declare fails, make sure to
	  propagate that error return back and make the assignment statement
	  fail. Fixes seg fault reported by Sergey Tselikh <stselikh@gmail.com>

				   8/20
				   ----
builtins/declare.def
	- declare_internal: made a slight tweak to the warning message about
	  quoted compound assignments by printing it only if the array (indexed
	  or assoc) does not already exist

				   8/21
				   ----
braces.c
	- mkseq: call strvec_dispose before throw_to_top_level if we saw SIGINT
	  to avoid a memory leak

trap.c
	- maybe_set_return_trap: set the RETURN trap to string if it's not
	  already trapped, in the same way as the debug and error traps

execute_cmd.c
	- execute_function: use maybe_set_return_trap to allow functions to set
	  return traps that persist across calls even if function tracing is
	  enabled

lib/readline/input.c
	- rl_gather_tyi: make sure errno reset to 0 after select call, for
	  ioctl and read
	- rl_gather_tyi: if read returns -1/EIO, return -1
	- rl_read_key: if rl_gather_tyi returns -1/EIO, return READERR if in
	  RL_STATE_READCMD (reading command in readline_internal_char), EOF
	  if not (like rl_getc). Continue to return '\n' on other errors;
	  rl_done = 1 in any case.  Fix for issue reported by
	  Lubomir Rintel <lkundrak@v3.sk>

lib/readline/{misc,text,vi_mode}.c
	- fix return values from rl_read_key to handle < 0

				   8/22
				   ----

parse.y
	- parsing_redirection: macro that expands to true if the last read
	  token (always passed as an argument) is a redirection token that
	  will leave us reading a word that's the target of the redirection
	- command_token_position: make sure that even if the parser state
	  indicates we are reading a simple command (PST_REDIRLIST), we do
	  not perform alias expansion on a WORD that is part of a redirection,
	  using parsing_redirection() to do so.  Fixes but reported to Red Hat
	  by Robert Alm Nilsson <rorialni@gmail.com>
	  https://bugzilla.redhat.com/show_bug.cgi?id=795795

builtins/declare.def
	- declare_internal: only print the warning now if the variable is not
	  already an array or if we are not creating an array with -a or -A,
	  cuts down the spurious warnings
	- declare_internal: even if the rhs of the assignment looks like a
	  compound array, if we're not assigning to an existing array or we're
	  not creating an array, make it an array subscript assignment.  This
	  means things like declare a[1]='(foo)' and a[1]='(foo)' behave
	  identically

builtins/help.def
	- wdispcolumn: change use of displen and add new dispchars variable to
	  deal with locales where each wide character does not take up one
	  column position.  Fix for bug reported by Mingye (Arthur) Wang
	  <arthur200126@hotmail.com>

				   8/23
				   ----
sig.c
	- sigint_sighandler: if we get a SIGINT while this_shell_builtin ==
	  wait_builtin, perform the special handling only if wait_intr_flag
	  is non-zero, don't just use it to set wait_sigint_received.  This
	  makes sure we run bashline_set_event_hook.  Fixes bug reported by
	  isabella parakiss <izaberina@gmail.com>

				   8/25
				   ----
subst.h
	- SD_HISTEXP: new flag for skip_to_delim, indicates we are looking for
	  the history expansion character (special double quote handling)
	- skip_to_delim: handle SD_HISTEXP flag, changes double quote handling
	  to be similar to history library: don't call skip_double_quote, make
	  sure single quotes aren't special in double quotes, but continue to
	  skip over $(), ${}, and other similar constructs

				   8/27
				   ----
support/bash.pc.in
	- new file, pkgconfig template for bash, installed to support nascent
	  loadable builtins dev environment

examples/loadables/Makefile.inc
	- new file, example Makefile with correct definitions for loadable
	  builtin development

configure.ac
	- headersdir: directory where headers get installed to support loadable
	  builtin development
	- examples/loadables/Makefile.inc, support/bash.pc: create 

Makefile.in
	- INSTALLED_HEADERS, INSTALLED_BUILTINS_HEADERS, INSTALLED_INCFILES,
	  CREATED_HEADERS: new variables holding names of include files to
	  install into $(headersdir) for loadable builtin development
	- install-headers,install-headers-dirs: new targets to support
	  installing headers into $(headersdir) and subdirectories for loadable
	  builtin development
	- uninstall-headers: target to uninistall headers in $(headersdir)
	- uninstall: call uninstall-headers whether or not install-headers
	  was done; add uninstall in examples/loadables
	- install: add install in examples/loadables
	- clean: add clean in examples/loadables

examples/loadables/Makefile.in
	- install-supported, install-unsupported: new targets, make install
	  chooses one based on $(SHOBJ_STATUS)
	- install-supported: now cds to the top level build directory and
	  installs the header files
	- install-supported: now installs Makefile.inc to $(loadablesdir) as
	  an example
	- uninstall-supported,uninistall-unsupported: uninstall targets,
	  make uninstall chooses one based on $(SHOBJ_STATUS)

				   8/31
				   ----
lib/glob/Makefile.in
	- CPPFLAGS: move after ${INCLUDES} so library-specific include paths
	  take precedence.  This is what the other parts of the shell do.
	  Report from Poor Yorick <org.gnu.lists.bug-bash@pooryorick.com>

builtins/read.def
	- reset_alarm: cancel alarm before restoring signal handler to avoid
	  possible race condition.  Report and fix from Oleg Popov
	  <dev-random@mail.ru>

subst.c
	- string_extract_verbatim: if SEPARATORS is "'", don't short-circuit
	  to string_extract_single_quoted unless the SX_NOCTLESC flag is set.
	  Callers expect this function to honor CTLESC, even to quote a single
	  quote.  Fixes bug reported by isabella parakiss <izaberina@gmail.com>
	  and several others

				    9/2
				    ---
include/chartypes.h
	- TOCTRL: handle '?' by special-casing it to 0x7f.  Fixes a problem
	  with $'\c?' reported by Helmut Karlowski <helmut.karlowski@ish.de>

redir.c
	- write_here_string: don't word-split the here string document.  The
	  bash documentation has always said this doesn't happen, even though
	  bash has done so for years, and other shells that implement here-
	  strings don't perform any word splitting.  The practical effect is
	  that sequences of IFS characters are collapsed to spaces.  Fixes
	  bug reported by Clint Hepner <clint.hepner@gmail.com>

				    9/3
				    ---
doc/{bash.1,bashref.texi}
	- add \? to the list of backslash escapes expanded by $'...' ANSI-C
	  quoting.  It was expanded but not documented

lib/readline/util.c
	- _rl_audit_tty: updated from Red Hat patch

lib/readline/readline.c
	- HAVE_DECL_AUDIT_USER_TTY: correct #define check

				   9/13
				   ----
shell.c
	- read_from_stdin: make sure value set to 1 appropriately if the shell
	  is reading from standard input, as Posix seems to specify (?)

lib/readline/kill.c
	- _rl_copy_to_kill_ring: don't assume that rl_kill_ring has been
	  allocated if _rl_last_command_was_kill is non-zero; make sure it's
	  non-null before indexing into it

				   9/15
				   ----
variables.c
	- initialize_shell_variables: cope with a NULL env pointer.  Fixes bug
	  reported by ziyunfei <446240525@qq.com>

				   9/16
				   ----
builtins/exec.def
	- exec_builtin: if -c is supplied, pass an empty array instead of a NULL
	  pointer to shell_execve

variables.c
	- set_pwd: only believe $PWD if it begins with a slash; try to
	  canonicalize it and set it to physical path if canonicalization fails.
	  Reported by ziyunfei <446240525@qq.com>

				   9/17
				   ----
subst.c
	- do_compound_assignment: make sure to dispose of word list generated
	  by expand_compound_array_assignment; fixes memory leak reported in
	  https://bugzilla.redhat.com/show_bug.cgi?id=1264101

variables.c
	- adjust_shell_level: clamp the value of shell_level at 1000 and reset
	  there, instead of > 1000, since the itos replacement code doesn't
	  handle the value 1000.  Fixes bug reported by ziyunfei
	  <446240525@qq.com>

shell.h,parse.y
	- save_parser_state,restore_parser_state: now save and restore
	  redir_stack, short-circuiting if need_here_doc == 0.  If we save a
	  non-zero value for need_here_doc, we have to make sure there is
	  something valid for gather_here_documents to work on.  Fixes bug
	  reported by Brian Carpenter <brian.carpenter@gmail.com>

				   9/18
				   ----
array.c
	- array_to_assign: use ansic_shouldquote to check whether each element
	  value contains non-printable characters and use ansic_quote to
	  generate the value instead of using sh_double_quote unconditionally

assoc.c
	- assoc_to_assign: if either the key or the value of an associative
	  array element contains non-printable characters (ansic_shouldquote
	  returns true), use ansic_quote to quote them instead of using double
	  quotes unconditionally

				   9/19
				   ----
subst.c
	- pat_subst: handle REP being NULL.  Fixes bug reported by Brian
	  Carpenter <brian.carpenter@gmail.com>

builtins/evalstring.c
	- parse_string: if we get a longjmp to top_level with DISCARD as the
	  code (in which case we are going to go on), return -DISCARD to our
	  caller (always xparse_dolparen) after doing our own cleanup instead
	  of calling jump_to_top_level

parse.y
	- xparse_dolparen: if parse_string returns < 0, do the appropriate
	  cleanup and then jump_to_top_level with the negative of the return
	  value.  This allows us to do the appropriate parser cleanup in
	  case we're not going to exit the shell.  Fixes bug reported by Brian
	  Carpenter <brian.carpenter@gmail.com>

subst.c
	- extract_delimited_string: if a recursive call to one of the extract_
	  functions or a call to ADVANCE_CHAR leaves i past the end of the
	  string, cut the loop off at the end of the string.  Fixes bug
	  reported by Brian Carpenter <brian.carpenter@gmail.com>

				   9/20
				   ----
subst.c
	- get_var_and_type: return appropriate values if variable indirection
	  results in a NULL variable.  Fixes bug reported by Brian Carpenter
	  <brian.carpenter@gmail.com>

lib/readline/history.c
	- history_get_time: handle strtol overflows caused by malicious
	  modifications to timestamps in the history file.  Fixes issue
	  reported by rens@endoria.net

				   9/21
				   ----
lib/readline/rlconf.h
	- ENABLE_AUDIT_TTY_SUPPORT: now undefined (off) by default

				   9/24
				   ----
jobs.c
	- waitchld: if we get a SIGINT while waiting for a child to exit, but
	  the kernel doesn't interrupt the waitpid(2) call, assume the child
	  caught SIGINT if it exited for some reason other than SIGINT.  Fix
	  suggested by Stephane Chazelas <stephane.chazelas@gmail.com>

input.c
	- make_buffered_stream: use B_TEXT in buffered stream flags instead
	  of (typo) O_TEXT.  Report and fix from Eric Blake <eblake@redhat.com>

				   9/27
				   ----
execute_cmd.c
	- shell_execve: call reset_parser before calling initialize_subshell,
	  which calls delete_all_aliases.  reset_parser wants to free the
	  pushed string list, which has pointers back into the alias table
	  (use after free)
	- execute_simple_command: if we fork for an async command, make sure
	  the child process increments shell_level before performing any
	  word expansions, so $BASH_SUBSHELL is incremented.  Fixes issue
	  reported by ziyunfei <446240525@qq.com>

				   10/1
				   ----
builtins/kill.def
	- kill_builtin: make -L equivalent to -l for compatibility with other
	  (Linux) versions of kill

doc/{bash.1,bashref.texi}
	- kill: document new `-L' option

				   10/2
				   ----
[bash-4.4-beta frozen]

				   10/5
				   ----
doc/{bash.1,bashref.texi}
	- LC_TIME: document that the shell recognizes it and calls setlocale
	  when it changes; and that the shell uses it for time formatting

				   10/6
				   ----
subst.c
	- skip_single_quoted: now takes an additional `flags' argument, like
	  skip_double_quoted; changed callers
	- skip_single_quoted: now pays attention to SX_COMPLETE flag, allows
	  backslash to escape single quote, like $'...' allows
	- skip_to_delim: added case where we are completing and we are
	  skipping over a $'...' string to call skip_single_quoted with
	  SX_COMPLETE flag to allow backslash to quote single quote.  Fixes
	  bug reported by Daniel Colascione <dancol@dancol.org>
	- char_is_quoted: make analogous changes to handle $'...' so we can
	  accommodate $'ab \' cd'

				   10/11
				   -----
subst.c,bashjmp.h
	- no_longjmp_on_fatal_error: now global so other parts of the shell can
	  use it

arrayfunc.c
	- expand_array_index: if no_longjmp_on_fatal_error is non-zero, don't
	  longjmp to top_level, just return 0.  Fixes bug reported by
	  isabella parakiss <izaberina@gmail.com>

subst.c
	- CQ_RETURN: restore old value of no_longjmp_on_fatal_error (oldjmp);
	  make sure all callers (skip_matched_pair, skip_to_delim,
	  char_is_quoted) save no_longjmp_on_fatal_error to oldjmp before
	  setting it to 1

expr.c
	- expr_streval: if longjmping after an unbound variable error, jump
	  back to expr toplevel (evalbuf) if no_longjmp_on_fatal_error is set
	  in an interactive shell

variables.c
	- push_func_var: if pushing an array variable, such as when a variable
	  in the temporary environment is promoted to an array by mapfile when
	  the shell is in posix mode (so variable assignments preceding special
	  builtins or shell functions persist in the shell environment after
	  the builtin returns), make sure to copy the array or hash table so
	  the variable is duplicated correctly.  Fixes seg fault reported by
	  Linda Walsh <bash@tlinx.org>

				   10/13
				   -----
variables.c
	- initialize_shell_variables: add call to sv_shcompat, so BASH_COMPAT
	  can be set in the initial environment

execute_cmd.c
	- execute_function: set loop_level to 0 only if shell_compatibility_level
	  is greater than bash-4.3; this was kind of an incompatible change.
	  Report from Carlos Pita <carolosjosepita@gmail.com>

COMPAT,doc/{bash.1,bashref.texi}
	- compat43: added loop_level changes to description

				   10/15
				   -----
lib/sh/casemod.c,lib/readline/display.c
	- make sure mb_cur_max variable is defined outside of HANDLE_MULTIBYTE
	  if it's used outside HANDLE_MULTIBYTE.  Fixes from Greg Wooledge
	  <wooledg@eeg.ccf.org>

support/Makefile.in
	- bash.pc: remove as part of distclean, not clean.  Report from Andreas
	  Schwab <schwab@linux-m68k.org>

				   10/17
				   -----
subst.c
	- array_var_assignment: make sure to call quote_string or quote_escapes
	  on the assignment string, so spaces in the assignment survive word
	  splitting.  Fixes bug reported by isabella parakiss
	  <izaberina@gmail.com>

				   10/20
				   -----
doc/{bash.1,bashref.texi}
	- word splitting: make sure that newline is listed as one of the IFS
	  whitespace characters.  Fixes omission reported by ziyunfei
	  <446240525@qq.com>

lib/readline/histfile.c
	- history_do_write: make sure that we only create and use the tempfile
	  if the history file exists and is a regular file.  Reported several
	  times, most recent check the result of a report from
	  <marko.teiste@gmail.com>

				   10/22
				   -----
jobs.c
	- delete_all_jobs: if running_only == 0, we are eventually going to
	  clear the bgpids list, so don't bother to add pids to it in
	  delete_job (call with DEL_NOBGPID flag if running_only == 0)

				   10/24
				   -----
jobs.[ch]
	- bgpids: new implementation from a patch from John Fremlin
	  <john@fb.com>, uses an array for the list of the last CHILD_MAX
	  terminated background pids, and a separate hash table to search it.
	  The storage can be freed as a unit, and the size of the hash table
	  (currently 4096) is independent of the size of the bgpids table

subst.c
	- inherit_errexit: new variable to control whether or not command
	  substitution inherits the -e (errexit) option.  Disabled by default

general.c
	- posix_initialize: set inherit_errexit = 1 when Posix mode is enabled

builtins/shopt.def
	- inherit_errexit: new shell option, tracks value of inherit_errexit,
	  allows command substitution to inherit the setting of errexit without
	  posix mode.  From a request and patch submitted by Christoph Gysin
	  <christoph.gysin@gmail.com>

{version,version2}.c
	- use #if HAVE_SNPRINTF instead of #if defined in case configure
	  decides to #define it to 0.  Fixes problem reported by Klaus Ziegler
	  <klausz@haus-gisela.de>

configure.ac
	- when checking for sys/resource.h, make sure to include <sys/time.h>
	  for the benefit of both old systems that require it and new versions
 	  of autoconf that require a header file to compile to report its
	  presence.  Reported by Klaus Ziegler <klausz@haus-gisela.de>

				   10/26
				   -----
subst.h
	- SD_ARITHEXP: new flag value for skip_to_delim, supports parsing
	  arithmetic expressions in parameter expansions

subst.c
	- skip_to_delim: handle SD_ARITHEXP flag by skipping parentheses for
	  subexpressions and allowing ?: expression to not terminate an
	  arithmetic expression delimited by `:'
	- skiparith: just call skip_to_delim with the SD_ARITHEXP option and
	  the right delimiter string and return the right result.  Fixes bug
	  reported by <grishalevit@gmail.com>

include/shmbchar.h
	- strip out everything except what is needed to support is_basic and
	  similar functions, since the mbchar_t typedef apparently conflicts
	  with some AIX-specific type definition.  Problem reported by
	  Michael Felt <aixtools@gmail.com>

				   10/27
				   -----
builtins/{set,ulimit}.def
	- {set,ulimit}_builtin: make sure that --help is treated the same as
	  -? and prints a message and returns.  Fixes bug reported by ziyunfei
	  <446240525@qq.com>

builtins/*.def
	- make sure to consistently use builtin_help() instead of mix of that
	  function and builtin_usage()

				   10/29
				   -----
doc/{bash.1,bashref.texi}
	- BASH_CMDS, BASH_ALIASES: note that removing elements from these
	  array variables is not currently reflected in the command hash
	  table and alias list, respectively.  Reported by isabella parakiss
	  <izaberina@gmail.com>

				   10/30
				   -----
eval.c
	- reader_loop: if PS0 is set in an interactive shell, expand and
	  display it after reading a (complete) command but before executing
	  it.  This differs from the DEBUG trap because the DEBUG trap is
	  executed once for each simple command (and some others, like each
	  time through a for loop).  From a patch submitted by Dan Stromberg
	  <dstromberglists@gmail.com>

parse.y
	- prompt_again: set ps0_prompt from $PS0 in an interactive shell

doc/{bash.1,bashref.texi}
	- PS0: document new prompt string

				   11/3
				   ----
subst.c
	- cond_expand_node: if special > 0, remove quoted nulls from the word
	  list, since no word splitting takes place.  Fixes bug reported by
	  Corentin Peuvrel <cpeuvrel@pom-monitoring.com>

				   11/4
				   ----
doc/{bash.1,builtins.texi}
	- inherit_errexit: add to shopt description; modify Posix mode
	  description

				   11/9
				   ----
lib/readline/util.c
	- rl_tilde_expand: fix out-of-bounds read caused when this function
	  is invoked with rl_point == 0.  Bug reported by Hanno BÃ¶ck
	  <hanno@hboeck.de>

				   11/11
				   -----
{nojobs,jobs}.c
	- get_original_tty_job_signals: force the original signal disposition
	  for SIGTSTP/SIGTTIN/SIGTTOU to SIG_DFL in interactive shells.  This
	  will force child processes to get SIG_DFL even if the shell is
	  started with those signals ignored.  From a bug report from
	  Keith Thompson <keithsthompson@gmail.com>

				   11/13
				   -----
make_cmd.c
	- make_function_def: if a function is being defined without a source
	  file, and the shell has not been initialized, assume that the
	  function is being imported from the environment and set the
	  source_file struct member to "environment".  Set to "main" if the
	  shell has been initialized.  Fixes bug reported on savannah by
	  Arno-Can Uestuensoez
	  https://savannah.gnu.org/support/index.php?108903

subst.c
	- skip_to_delim: if the shell is in posix mode (posixly_correct != 0)
	  and performing history expansion ((flags & SD_HISTEXP) != 0), allow
	  double quotes to quote the history expansion character.  TENTATIVE
	  CHANGE, inspired by
	  https://savannah.gnu.org/support/index.php?108491

				   11/14
				   -----
jobs.c
	- wait_for: modify change from 4/23 to only give the terminal to
	  shell_pgrp if not running in the background and subshell_environment
	  indicates we're not in a pipeline and not an async command.  Fixes
	  bug reported by konsolebox <konsolebox@gmail.com>

				   11/16
				   -----
doc/{bash.1,bashref.texi}
	- document new posix-mode behavior of not giving ! special meaning
	  within double quotes, even if histexpand is enabled

				   11/17
				   -----
builtins/evalfile.c
	- fc_execute_file: pass FEVAL_BUILTIN flag to _evalfile so it returns
	  the value of parse_and_execute after executing the commands in the
	  file.  Fixes bug reported by Chris Marusich <cmmarusich@gmail.com>

				   11/20
				   -----
subst.c
	- process_substitute: don't unconditionally set pipeline_pgrp to
	  shell_pgrp; do that only if pipeline_pgrp == 0 (we haven't forked
	  yet) or if we know we haven't forked for a command, a pipeline,
	  or an async command.  Fixes bug reported by
	  <gnu.20.drkshadow@spamgourmet.com>
	  as https://savannah.gnu.org/support/index.php?108593

				   11/24
				   -----
variables.c
	- set_pwd: inherit the value of OLDPWD from the initial environment
	  if it names a directory.  From a report from John Wiersba
	  <jrw32982@yahoo.com>

builtins/set.def
	- -T: fix help text to note that the DEBUG and RETURN traps are both
	  inherited if this is set.  Report from Grisha Levin
	  <grishalevit@gmail.com>

doc/{bash.1,bashref.texi}
	- HISTIGNORE,GLOBIGNORE: note that the pattern matching is subject to
	  the setting of the `extglob' variable.  Clarification raised by
	  Aharon Robbins <arnold@skeeve.com>

builtins/jobs.def,doc/{bash.1,bashref.texi}
	- disown: add text to synopsis making it clear that disown takes a
	  pid argument.  From a report from Matthew Stanfield
	  <matthew@i-dig.info>

findcmd.c,doc/{bash.1,bashref.texi}
	- EXECIGNORE: change pattern matching to use FNMATCH_EXTFLAG like other
	  IGNORE variables.  From a report from Aharon Robbins <arnold@skeeve.com>

trap.c
	- _run_trap_internal: make sure to catch and use return values supplied
	  as arguments to `return'; instead of just catching return, make sure
	  we use return_catch_value as well.  Fixes bug reported by
	  Grisha Levit <grishalevit@gmail.com>, affects RETURN, DEBUG, ERROR
	  traps

				   11/30
				   -----
lib/readline/display.c
	- rl_redisplay: fix code that deals with prompts that contain
	  multibyte characters whose physical length is longer than the screen
	  width (so the prompt line wraps) to deal with invisible characters
	  in the prompt and set the inv_lbreaks offsets correctly and set
	  lpos appropriately
	- _rl_move_cursor_relative: always called with either visible line or
	  invisible line. Decide whether we are being called with the invisible
	  line (or a portion thereof) as the DATA argument; make sure to account
	  for invisible characters in the last line of the prompt by offsetting
	  the desired buffer offset (NEW) by where DATA starts in invisible line
	  and checking whether that is past the last invisible character in
	  the prompt
	- _rl_move_cursor_relative: do the same for the visible line by using
	  the visible line lbreaks array instead of _rl_screenwidth, since
	  that fails in the presence of multibyte characters (buffer offset
	  vs. physical screen position).  These fix bug with prompts with
	  multibyte characters and invisible characters that are longer than
	  the screen width reported by Ryo Furue <ryofurue@gmail.com>

				   12/1
				   ----
parse.y,make_cmd.c
	- here_doc_first_line: new variable, set to non-zero to indicate the
	  first line of possibly multiple here documents associated with the
	  current command.  Set in parse.y:gather_here_documents() before
	  reading any here documents, set to 0 after reading the first line
	  of any here document in make_cmd.c:make_here_document().

parse.y
	- history_delimiting_chars: if parser_state indicates we are reading
	  a here document, don't use current_command_line_count to see whether
	  or not we're on the first line of a here document -- it can be fooled
	  by multi-line commands (or even backslash-escaped newlines).  Use
	  here_doc_first_line to check that directly.  Fixes bug reported by
	  Geoffrey Allott <geoffrey@allott.email>

shell.h,parse.y
	- save and restore here_doc_first_line as part of the shell's parser
	  state

lib/sh/tmpfile.c
	- use ANSI-C rand() interface if random() not available.  Fixes problem
	  with linking on (ancient) Solaris 2.4 reported by Klaus Ziegler
	  <klausz@haus-gisela.de>

				   12/2
				   ----
aclocal.m4
	- RL_LIB_READLINE_VERSION: if cross-compiling, assume current version
	  of readline if cross-compiling bash while using an external readline
	  library.  Fix from Barry Davis <barry_davis@stormagic.com>

execute_cmd.c
	- execute_builtin: save and restore value of builtin_ignoring_errexit
	  instead of assuming we can set it back to 0 -- the ignore-errexit
	  cases might be nested
	- execute_builtin: after a builtin executes and eval_unwind is set,
	  set exit_immediately_on_error to 0 if builtin_ignoring_errexit is
	  set, and back to the value of errexit otherwise, just like the
	  code that sets -e does.  Fixes short-circuiting bug reported by
	  Marcin Swigon <swigon.mar@gmail.com>

				   12/5
				   ----
builtins/setattr.def
	- set_or_show_attributes: instead of using a fixed string for the
	  options argument to `declare', which results in export adding the
	  readonly attribute, build the option string dynamically like in
	  subst.c:shell_expand_word_list()
	- set_or_show_attributes: don't add the -r option to declare if the
	  attribute passed as an argument doesn't include att_readonly; add
	  -x if the attribute includes att_exported
	- set_or_show_attributes: add the -g option to declare so readonly
	  and export in functions that go through this code path don't create
	  local variables.  Part of fix for bug reported by ziyunfei
	  <446240525@qq.com>

execute_cmd.c
	- make_internal_declare: if we have an assignment builtin that isn't
	  supposed to create local variables (export/readonly), make sure to
	  add the W_ASSNGLOBAL flag to each assignment statement word.
	  Part of fix for bug reported by ziyunfei <446240525@qq.com> where
	  readonly can create local variables when invoked with a compound
	  array assignment as an argument within a shell function

subst.c
	- make_internal_declare: added third argument: command name.  Not used
	  in any useful way yet
	- do_compound_assignment: handle attempted assignments to readonly
	  variables and print error messages, like bind_variable does and the
	  callers expect. This means that assignments to readonly array
	  variables can't go through a code path that allows them to fail
	  silently

doc/Makefile.in
	- uninstall: run install-info --delete after removing the installed
	  info file to update the directory file

execute_cmd.c
	- execute_disk_command: since we still (and have always) perform
	  redirections in child processes, we need to mark that state so
	  we know that we're in a child process.  subshell_performing_redirections
	  is the new variable; non-zero when executing do_redirections()

subst.c
	- process_substitute: if we are executing process substitution in a
	  redirection expansion context (expanding_redir == 1), the child
	  process should not have access to any temporary environment the
	  parent has.  Call flush_tempenv() in the child process to get rid
	  of it.  Fix for bug reported by Clint Hepner <clint.hepner@gmail.com>

				   12/9
				   ----
jobs.c
	- waitchld: if in posix mode and attempting to let SIGCHLD interrupt the
	  wait builtin, make sure wait_intr_flag is non-zero before trying to
	  longjmp to wait_intr_buf.  Fixes bug reported by Aharon Robbins
	  <arnold@skeeve.com>

				   12/10
				   -----
lib/readline/display.c
	- update_line: if a prompt containing invisible characters changes,
	  and the change is within the prompt string, we need to redraw the
	  entire prompt.  After that redraw, if the cursor position is after
	  the first index where the old and new lines differ, we can short-
	  circuit the update if the line length stays the same
	- update_line: if we redraw the entire prompt string because the prompt
	  contains invisible characters and the first difference is in the
	  middle of the prompt, we possibly need to adjust our idea of the
	  first differing character in the old and new lines.  We punt and do
	  a dumb update in this case.  Fixes bug with dynamic vi-mode mode
	  strings containing invisible characters reported by Dylan Cali
	  <calid1984@gmail.com>

				   12/11
				   -----
lib/readline/display.c
	- update_line: if we move up to a new screen line, we need to recompute
	  the number of invisible characters on the new current line
	  (visible_wrap_offset).  Fixes bug reported to bug-readline by
	  Per Bothner <per@bothner.com>
	- update_line: update code that attempts to compute where we are in
	  the new line buffer.  Fixes `vt100' bug reported to bug-readline by
	  Per Bothner <per@bothner.com>

				   12/18
				   -----
execute_cmd.c
	- execute_function: unwind-protect and restore BASH_ARGC and BASH_ARGV
	- restore_funcarray_state: now global

execute_cmd.h
	- make func_array_state type global, add extern function declaration
	  for restore_funcarray_state

builtins/evalfile.c
	- _evalfile: use restore_funcarray_state and pop_args as unwind-protects
	  to restore BASH_{SOURCE,LINENO,ARGC,ARGV} and FUNCNAME on interrupts.
	  Fixes bug reported back on 11/10 by Grisha Levit
	  <grishalevit@gmail.com>

				   12/20
				   -----
lib/readline/isearch.c
	- _rl_isearch_dispatch: after removing the only character from the
	  search string with DEL, leaving the search string empty, don't match
	  the previous line if we didn't have a match before

				   12/22
				   -----
bashhist.c
	- enable_history_list,remember_on_history: initialize to 0 instead of 1

shell.c
	- init_interactive,init_interactive_script: set enable_history_list and
	  remember_on_history to 1 (defaults)

				   12/23
				   -----
variables.c
	- initialize_shell_variables: don't inherit PS4 from the environment
	  if the shell is running with euid == 0; just reset it to `+ '.  This
	  is a known potential vulnerability, since PS4 expansion performs
	  command substitution in the root shell's context before displaying
	  it.  Discussion started by up201407890@alunos.dcc.fc.up.pt

bashhist.c
	- bash_history_reinit: initialize remember_on_history to the value of
	  enable_history_list (set -o history).  Fixes bug reported by
	  Stephane Chazelas <stephane.chazelas@gmail.com> with command-line
	  option `-o history' not having any effect

				   12/28
				   -----
lib/readline/{history.h,histfile.c}
	- history_file_version: new int variable, reserved for future use
	- history_multiline_entries: new int variable, can be set by the
	  calling application to enable reading multi-line history entries
	  from the history file (currently undocumented)

lib/readline/history.c
	- _hs_append_history_line: new function, append a line passed as an
	  argument to a specified history entry, used to create multi-line
	  history entries

lib/readline/histfile.c
	- read_history_range: implement a heuristic that temporarily sets the
	  history comment character if the first line read from the history
	  file looks like it has is a timestamp (#[:digit:]) so we can read
	  timestamps from the history file properly.  Originally reported
	  back in March 2015 by Christoph Anton Mitterer <calestyo@gmail.com>
	- read_history_range: make sure history_multiline_entries is non-zero
	  if the history file looks like it has timestamps
	- read_history_range: if we think we have a history file with timestamps
	  and we read more than one non-timestamp consecutive history lines,
	  assume they are part of a single multi-line history entry and paste
	  them together using _hs_append_history_line.  Feature most recently
	  requested by james harvey <jamespharvey20@gmail.com>, also suggested
	  by Christoph Anton Mitterer <calestyo@gmail.com>

examples/loadables/setpgid.c
	- setpgid: new loadable builtin, originally contributed by Jason
	  Vas Dias <jason.vas.dias@gmail.com>

				   12/29
				   -----
bashhist.c
	- bash_history_inhibit_expansion: fix cases where a history expansion
	  should be skipped because it's in a command or process substitution
	  but there is another history expansion preceding the substitution
	  on the command line.  Don't let the previous history expansion fool
	  the function into saying the command substitution history expansion
	  should be performed

builtins/evalstring.c
	- parse_prologue: always unwind-protect history_expansion_inhibited,
	  since history expansion can be enabled in non-interactive shells,
	  and calling eval once in a non-interactive shell inhibits history
	  expansion forever even if `set -o histexpand' was run before the
	  eval

builtins/common.h
	- SEVAL_NOHISTEXP: new flag for parse_and_execute/parse_string; means
	  to not perform history expansion (decouple from SEVAL_NOHIST, which
	  now means to not remember commands on history); changed all callers
	  that had SEVAL_NOHIST to have SEVAL_NOHIST|SEVAL_NOHISTEXP

builtins/evalstring.c
	- parse_prologue: instead of calling bash_history_disable, set
	  remember_on_history to 0 if SEVAL_NOHIST and history_expansion_inhibited
	  to 1 if SEVAL_NOHISTEXP

				   12/30
				   -----
subst.c
	- skip_to_histexp: new function, a stripped-down version of skip_to_delim.
	  Used to skip to the next unquoted instance of the history expansion
	  character, handles peculiar quoting and command/process substitution
	  requirements.  Better fix for bug reported by
	  Zigmund.Ozean@zig-home.localdomain back in January, prompted by report
	  from Keith Thompson <keithsthompson@gmail.com>

bashhist.c
	- bash_history_inhibit_expansion: use skip_to_histexp instead of
	  skip_to_delim

subst.c
	- parameter_brace_expand_rhs: if the rhs of an expansion is "$@" and
	  IFS is null, we need to separate the (quoted) positional parameters
	  in the returned word with a space, and mark the word as needing to
	  be split on spaces (W_SPLITSPACE).  Fix for issues reported back in
	  October 2014 as the result of an austin-group discussion, and just
	  re-reported by Martijn Dekker <martijn@inlv.org>

				 1/4/2016
				 --------
execute_cmd.c
	- execute_simple_command: if autocd is set, invoke a function named
	  `cd' if one exists, instead of the shell builtin.  Feature requested
	  by transl8czech@gmail.com

builtins/mkbuiltins.c
	- if a command's short description is the same as its name (e.g., `true'),
	  don't mark the short doc to be translated.  Report and fix from
	  Benno Schulenberg <bensberg@justemail.net>

				    1/6
				    ---
subst.c
	- command_substitute,process_substitute: before replacing the file
	  descriptor underlying stdout (fd 1), make sure to purge any pending
	  stdio output that hasn't been written successfully, even after a
	  call to fflush().  Fixes bug reported by cks@cs.toronto.edu

				    1/7
				    ---
builtins/{echo,printf}.def
	- echo_builtin,printf_builtin: don't use terminate_immediately; use
	  calls to QUIT in the body of the print loop after writes and flushes.
	  Fixes problem with running the signal handler and exit trap in a
	  signal context and other bug reported by cks@cs.toronto.edu

builtins/common.c
	- sh_chkwrite: put in calls to QUIT to catch signals that interrupt
	  writes

shell.c
	- get_current_user_info: protect endpwent() with #ifdef HAVE_GETPWENT.
	  Fixes bug reported by pb <p-bauer-schriesheim@t-online.de>

				    1/8
				    ---
lib/readline/bind.c
	- _rl_init_file_error: now a varargs function so it can take format
	  strings and arguments and pass them to vfprintf
	- rl_parse_and_bind: print a warning if we encounter a key binding
	  string with one or more hyphens but we don't find a valid modifier
	  (`control', `meta', etc.).  Prompted by a report from Andrew Kurn
	  <kurn@sfu.ca>
	- rl_parse_and_bind: improve several existing error messages now that
	  _rl_init_file_error takes a variable number of arguments
	- rl_variable_bind: print error message upon encountering unknown
	  variable

				   1/10
				   ----
lib/readline/bind.c
	- rl_parse_and_bind: if a `bare' keybinding is supplied without any
	  terminating `:' or whitespace separating it from the command to be
	  bound, signal an error

				   1/11
				   ----
subst.c
	- process_substitute: when compiled without job control (JOB_CONTROL not
	  defined), make sure we call stop_making_children like we do in the job
	  control code branch, so already_making_children is reset to 0.  This
	  is what command substitution does.  Fixes bug reported by Alastair
	  Hughes <hobbitalastair@yandex.com>

				   1/12
				   ----
execute_cmd.c
	- execute_in_subshell: if a user subshell (`(command)') or other shell
	  compound command has an input pipe, note for later by setting
	  stdin_redir.  This will inhibit the implicit redirection of standard
	  input from /dev/null for async commands executed as part of this
	  subshell.  Fixes bug reported by Martin D Kealey <martin@kurahaupo.gen.nz>
	- execute_simple_command: if the shell forks to execute this command
	  because it has an input pipe, set stdin_redir to inhibit later redirection
	  from /dev/null for async commands

				   1/13
				   ----
execute_cmd.c
	- HASH_BANG_BUFSIZE: use #define for size of buffer used in
	  READ_SAMPLE_BUF instead of straight constant 80
	- HASH_BANG_BUFSIZ: increase to 128 because Linux allows 128 chars in
	  exec header.  Reported by Ludovic CourtÃ¨s <ludo@gnu.org>

configure.ac
	- remove support for purify and purecoverage
	- change release level to `rc1'

				   1/15
				   ----
builtins/enable.def
	- dyn_load_builtin: fix missing argument to builtin_error if load function
	  returns an error.  Fix from Aharon Robbins <arnold@skeeve.com>

				   1/18
				   ----
builtins/history.def
	- histtime: display a better error message for invalid timestamps; use
	  existing `??' string for empty/missing timestamps or invalid history
	  entries.  Suggestion from Reuben Thomas <rrt@sc3d.org>

				   1/21
				   ----
lib/readline/text.c
	- rl_insert: when trying to optimize typeahead, make sure to reset the
	  key sequence and key sequence length when we read a character that is
	  not bound to self-insert.  Bug report from Geir Hauge
	  <geir.hauge@gmail.com>

				   1/25
				   ----
doc/{bash.1,bashref.texi}
	- word splitting: add example showing how -d'' is equivalent to -d
	  after word splitting and null argument removal

				   1/27
				   ----
doc/{bash.1,bashref.texi}
	- read: modify description to make it more clear that the line is split
	  using the same rules as word splitting, and use `delimiters' instead
	  of `separators', which people read the wrong way

				    2/2
				    ---
variables.c
	- initialize_shell_variables: allow FUNCNEST to set funcnest_max when
	  imported from the environment.  Inspired by
	  https://bugzilla.redhat.com/show_bug.cgi?id=1274553

				   2/11
				   ----
bashhist.c
	- bash_history_inhibit_expansion: function should be compiled in only if
	  BANG_HISTORY is defined.  Report from isabella parakiss
	  <izaberina@gmail.com>

[bash-4.4-rc1 frozen]

				   2/15
				   ----
lib/readline/text.c
	- rl_refresh_line: call rl_redraw_prompt_last_line instead of
	  rl_forced_update_display to avoid redrawing all lines of a multiline
	  prompt (overwriting the last line of the multiline prompt in the
	  process).  Report from Hugh Davenport <hugh@davenport.net.nz>

				   2/18
				   ----
subst.c
	- parameter_brace_expand: when processing ${!name[@]}, make sure to
	  free `name' before returning the list of keys to avoid a memory leak.
	  Fixes bug reported by Emilio PastorMira <Emilio.PastorMira@utimaco.com>

				   2/19
				   ----
trap.c
	- free_trap_strings: when freeing the `special' traps (NSIG to BASH_NSIG),
	  check whether or not the `signal' is trapped, as it would be if the
	  subshell inherited it (errtrace) and don't free the trap string in that
	  case.  Fixes bug reported by Jan KlÃ¶tzke <jan@kloetzke.net>

				   2/21
				   ----
lib/sh/netconn.c
	- isnetconn: return false if getpeername fails with errno == EBADF.
	  Bug and fix from Andrew Gregory <andrew.gregory.8@gmail.com>

builtins/shopt.def
	- parse_bashopts: when reading BASHOPTS from the environment, make
	  sure to call any set functions associated with a variable, instead
	  of just setting the value to 1.  Report and fix from
	  Vehlow, JÃ¶rg <Joerg.Vehlow@kratzer-automation.com>

				   2/22
				   ----
lib/readline/complete.c
	- rl_display_match_list: don't bother calling strrchr to check the
	  return value from printable_part() if rl_filename_completion_desired
	  is non-zero, since in that case printable_part just returns its
	  argument.  Fixes git completion issue reported by
	  Dilyan Palauzov <dilyan.palauzov@aegee.org>
	- _rl_colored_completion_prefix: default is now 0, testing is complete

				   2/23
				   ----
variables.c
	- assign_hashcmd: if the shell is restricted, reject attempts to add
	  pathnames containing slashes to the hash table, as the hash builtin
	  does.  Fixes bug reported to savannah by Sylvain Beucler as
	  https://savannah.gnu.org/support/?108969

				   2/24
				   ----
subst.c
	- NEED_FPURGE_DECL: need it before externs.h included, since fpurge
	  is now used in this file.  Fixes warning reported by Mike
	  Frysinger <vapier@gentoo.org>
	- skip_double_quoted: add missing argument to declaration

parse.y
	- shell_getc: in call to internal_warning, use %lu to print an argument
	  cast explicitly to unsigned long.  Fixes warning reported by Mike
	  Frysinger <vapier@gentoo.org>

				   2/27
				   ----
parse.y
	- decode_prompt_string: quote result of \s expansion in case shell has
	  been invoked with a pathname like '$(id)'.  Inspired by report from
	  Travis Garrell <travis.garrell@oracle.com>
	- decode_prompt_string: quote result of \h and \H expansions in the
	  (unlikely) case that the hostname has been changed to something
	  malicious including a command substitution.  From report from
	  Travis Garrell <travis.garrell@oracle.com>

builtins/getopts.def
	- getopts_unbind_variable: new static function, just calls unbind_variable
	  for now.  Placeholder for any future work to do something special if
	  OPTARG is readonly.  Based on discussion started by Robert Elz
	  <kre@munnari.oz.au>

lib/readline/vi_mode.c
	- rl_vi_unix_word_rubout: new function, implements ^W as Posix specifies
	  it for vi mode, using whitespace and punctuation characters as word
	  boundaries. Prompted by question from Carlos Pita
	  <carolosjosepita@gmail.com>

lib/readline/vi_keymap.c
	- bind rl_vi_unix_word_rubout to ^W by default in both insert and
	  command mode

lib/readline/rltty.c
	- _rl_bind_tty_special_chars: if in vi mode, bind the WERASE character
	  to rl_vi_unix_word_rubout

lib/readline/funmap.c
	- vi-unix-word-rubout is new bindable name for rl_vi_unix_word_rubout

lib/readline/readline.h
	- rl_vi_unix_word_rubout: new extern declaration

				   2/28
				   ----
doc/bash.1
	- document readline blink-matching-paren variable
	- document readline completion-display-width variable
	- document readline completion-map-case variable
	- note that the default value of history-size depends on the value of
	  the HISTSIZE variable.  All from a message from Branden Robinson
	  <g.branden.robinson@gmail.com>

doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
	- convert-meta: modify the description to note that readline will turn
	  the default to off if the locale contains eight-bit characters
	- input-meta: modify the description to note that readline will turn
	  the default to on if the locale contains eight-bit characters
	- output-meta: modify the description to note that readline will turn
	  the default to on if the locale contains eight-bit characters.  From
	  a message from Branden Robinson <g.branden.robinson@gmail.com>

				    3/6
				    ---
examples/loadables/Makefile.in
	- install-dev: make installdirs a prerequisite; don't rely on the
	  install-supported target to create it first.  Bug with parallel
	  install (`make -j 4 install') reported by Chris Staub
	  <cstaub67@gmail.com>

				   3/12
				   ----
lib/readline/display.c:
	- rl_clear_visible_line: clear all screen lines occupied by the current
	  visible readline line.  Inspired by report from Lauri Ranta
	  <lauri.ranta@gmail.com>

lib/readline/readline.h
	- rl_clear_visible_line: extern declaration

lib/readline/doc/rltech.texi
	- rl_clear_visible_line: add documentation

				   3/19
				   ----
findcmd.c
	- file_status: add inadvertently-dropped test for EXECIGNORE to the
	  `other' bits check.  The check was in the original patch
	- search_for_command: if the file should not be considered executable
	  because it's in the EXECIGNORE blacklist, don't set file_to_lose_on,
	  since the attempt to execute the last-ditch path will circumvent the
	  EXECIGNORE setting.  Fixes bug reported by Dennis Williamson
	  <dennistwilliamson@gmail.com>

				   3/28
				   ----
lib/readline/display.c
	- rl_redisplay: when computing where the cursor should go (and the
	  physical cursor position) after displaying the prompt, don't adjust
	  the cursor position by wadjust if there are no multibyte chars in
	  the prompt.  lpos is already a physical cursor position; _rl_screenwidth
	  is the physical screen width, and we're not calling _rl_col_width and
	  don't need to take invisible characters into account again.  Fixes
	  bug reported by Andreas Schwab <schwab@linux-m68k.org>

				    4/1
				    ---
parse.y
	- parse_comsub: when we read `esac' followed by a break character,
	  turn on the LEX_RESWDOK flag because we can now read another case
	  statement or other compound command.  Fixes bug reported by
	  Christian Franke <Christian.Franke@t-online.de>, original version
	  of patch from Piotr Grzybowski <narsil.pl@gmail.com>
	- parse_comsub: leave the reserved-word-ok flag set for four-char
	  reserved words (then/else/elif/done/time) that can be followed by
	  reserved words; set lex_rwlen to 0 so we know to start reading a
	  new one

				    4/7
				    ---
builtins/{alias,complete,jobs}.def
	- {alias,compopt,disown}: add missing `CASE_HELPOPT;' so --help option
	  prints help longdoc instead of builtin_usage()

				    4/8
				    ---
arrayfunc.c
	- assign_array_var_from_word_list: use bind_array_var_internal instead
	  of inline code, so value conversions happen on assignment (case
	  modification, arithmetic evaluation, etc).  Fixes bug reported by
	  Geir Hauge <geir.hauge@gmail.com>

				    4/9
				    ---
shell.c
	- main: change the logic that determines whether or not bash is running
	  under an emacs terminal emulator so it works with future versions of
	  emacs, which will change to use only $INSIDE_EMACS.  Report and fix
	  from Paul Eggert <eggert@cs.ucla.edu>

lib/glob/sm_loop.c
	- EXT: if we see ?(pat), we can match 0 or 1 times, so if we don't
	  match, we should consume the extglob pattern and go on to attempt
	  to match the rest of the pattern against the string.  Fixes bug
	  reported by Isabella Parakiss <izaberina@gmail.com>
	- GMATCH: in case `*', don't short-circuit and match anything if the
	  * is the last character in the pattern until after we check the
	  special cases for matching a `.'.  Fixes bugs reported back on 3/23
	  by Isabella Parakiss <izaberina@gmail.com>

				   4/13
				   ----
bashhist.c
	- hc_erasedups: fix memory leak by freeing history entry returned by
	  remove_history.  Bug and fix from Seiichi Ishitsuka
	  <ishitsuka.sc@ncos.nec.co.jp>

				   4/19
				   ----
config-top.h
	- CD_COMPLAINS: now settable in config-top.h; enables (fatal) error
	  messages if cd is given multiple directory arguments

				   4/20
				   ----
execute_cmd.c
	- coproc_setvars: refuse to create variables with names that are not
	  valid identifiers.  Suggestion from Piotr Grzybowski
	  <narsil.pl@gmail.com>

rltty.c
	- rl_tty_set_echoing: interface to set _rl_echoing_p, returning old
	  value.  Inspired by gdb use of _rl_echoing_p when switching
	  between terminal and curses modes described by Doug Evans
	  <dje@google.com>

bashline.c
	- bash_execute_unix_command: use rl_clear_visible_line instead of
	  erasing current line on the screen, inspired by same report from
	  3/12.  Still tentative change

configure.ac
	- update release status to rc2, may skip this and go directly to
	  release

				   4/21
				   ----
arrayfunc.c
	- convert_var_to_array: make sure that the newly-converted array
	  variable is not marked as being an associative array.  Fixes bug
	  reported by Grisha Levit <grishalevit@gmail.com>
	- convert_var_to_assoc: make sure that the newly-converted associative
	  array variable is not marked as being an indexed array

				   4/22
				   ----
builtins/evalstring.c
	- should_suppress_fork: don't suppress the fork if there are any traps
	  set, since that requires that we hang around to react to a signal or
	  collect the command's exit status and run something.  Fixes bug
	  reported by Brian Vandenberg <phantall@gmail.com>

histexpand.c
	- history_tokenize_word: handle >| as a single token.  Fix from
	  Piotr Grzybowski <narsil.pl@gmail.com> from a report from
	  idallen@idallen-fibe.dyndns.org

				   4/24
				   ----
execute_cmd.
	- coproc_setvars: don't overwrite readonly variables used as coproc
	  names.  From a report from Grisha Levit <grishalevit@gmail.com>

histexpand.c
	- history_tokenize_word: handle strings of digits before redirections
	  beginning with `<' or `>' as part of the redirection word; handle
	  strings of digits following `<&' or `>&' as part of the redirection
	  word.  Inspired by patch from  Piotr Grzybowski <narsil.pl@gmail.com>
	  from a report from idallen@idallen-fibe.dyndns.org

lib/readline/complete.c
	- rl_display_match_list: if the common prefix is longer than any of
	  the possible matches, set the length of the common prefix to 0 so
	  the entire match gets printed for each match
	- rl_display_match_list: make sure to output at least one space
	  between each displayed match, even if the displayed length is
	  longer than our computed max
	- fnprint: if the length of the prefix (prefix_bytes) is greater than
	  or equal to the length of the string to be printed (print_len), make
	  sure to set the prefix length to 0 so the entire string is printed.
	  From a report from Grisha Levit <grishalevit@gmail.com>

				   4/25
				   ----
subst.c
	- command_substitute: update the conditions under which we give the
	  terminal to pipeline_pgrp with give_terminal_to to the same ones
	  where wait_for uses to decide whether to give the terminal back to
	  shell_pgrp.  This code exists to undo the work wait_for does; it
	  has to give the terminal back to pipeline_pgrp only under those
	  conditions when wait_for gives it back to the shell pgrp.  Fix for
	  bug reported by Paulo Bardes <bardes0022@gmail.com>

				   4/26
				   ----
bashline.c
	- bash_filename_stat_hook: temporarily disable the `nounset' shell
	  option around calls to expand_prompt_string so we don't get error
	  messages during completion.  Fixes issue reported by Eric Pruitt
	  <eric.pruitt@gmail.com>

				   4/27
				   ----
doc/{bash.1,bashref.texi}
	- extdebug: clarify that having this option enabled at shell startup
	  acts identically to --debugger.  From a report from Grisha Levit
	  <grishalevit@gmail.com>

jobs.[ch]
	- wait_for_single_pid: now takes additional `int flags' argument

{jobs,execute_cmd}.c,builtins/wait.def
	- wait_for_single_pid: changed callers to add extra argument

jobs.c
	- wait_for_single_pid: if (flags & 1) == 0, don't print the error
	  message if PID isn't found; changed execute_pipeline call when
	  lastpipe is set

				   4/28
				   ----
general.c
	- bash_tilde_expand: try not setting interrupt_immediately or
	  terminate_immediately; see what happens with networked password
	  databases

				   4/29
				   ----
subst.c
	- parameter_brace_expand, parameter_brace_expand_rhs: now take an
	  additional `pflags' argument from its caller so we can pass
	  state
	- parameter_brace_expand_rhs: if expand_string_for_rhs returns a
	  quoted null, but l_hasdollat is set to 1, meaning we saw a quoted
	  "$@" of some form, we need to turn off special handling of "$@"
	  so something like "${@-${@-$@}}" expands to an empty string like
	  Posix says it should.  Fixes bug reported by Grisha Levit
	  <grishalevit@gmail.com>

				    5/1
				    ---
variables.c
	- bind_variable_internal: if we have a nameref variable with a valid
	  array reference that is invalid for assignment (e.g., a[*]), and
	  assign_array_element returns NULL, short-circuit and return NULL.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>

general.[ch]
	- valid_nameref_value: new function, return 1 if passed argument is
	  a valid variable name argument for a nameref variable: a valid
	  identifier, a valid array reference, or a valid positional
	  parameter.  Second argument indicates whether the value is to be
	  used for an assignment; in this case, return an error if the name
	  consists of all digits

builtins/declare.def
	- declare_internal: disallow values for nameref variables that don't
	  pass the tests in valid_nameref_value.  Part of fix for bug
	  reported by Grisha Levit <grishalevit@gmail.com>

variables.c
	- bind_variable_internal: if trying to assign a value to a nameref
	  variable, throw an error if valid_nameref_value fails (with a second
	  argument of 1).  More fixes for bug reported by Grisha Levit
	  <grishalevit@gmail.com>

				    5/2
				    ---
builtins/declare.def
	- declare_internal: don't allow nameref attribute to be applied to an
	  existing readonly variable; it can be used to circumvent readonly
	  value.  Fix for bug reported by Grisha Levit <grishalevit@gmail.com>

variables.[ch]
	- find_variable_last_nameref, find_global_variable_last_nameref: takes
	  a new flags argument.  If flags is non-zero, and we find a nameref
	  variable that is unset (has no value), return that variable instead
	  of NULL.

{variables,execute_cmd,arrayfunc,subst}.c,builtins/{declare,set}.def
	- find_variable_last_nameref, find_global_variable_last_nameref: change
	  callers to add flags argument (initially 0)

				    5/3
				    ---
variables.c
	- bind_variable_internal: make sure we run the value of a namref
	  variable through valid_nameref_value before doing the assignment.
	  This can go away if we stop allowing namerefs to refer to positional
	  parameters

execute_cmd.c
	- execute_select_command: if bind_variable returns NULL, handle it as
	  an error, as if attempting assignment to a readonly variable
	- execute_for_command: use 1 as second argument to
	  find_variable_last_nameref, so it will return an invisible nameref
	  to assign for each variable in the list
	- execute_for_command: if the current word in the list is an invalid
	  identifier and the loop variable is a nameref, handle it as an error,
	  as if attempting assignment to a readonly variable

				    5/4
				    ---
variables.c
	- bind_int_variable: add warning if assigning an int to a nameref
	  variable
	- assign_in_env: if assigning a variable in the temporary environment
	  that is a namref, throw an error if trying to assign an invalid
	  value
	- bind_variable_value: use valid_nameref_value instead of calls to
	  legal_identifier and valid_array_reference

execute_cmd.c
	- coproc_setvars: if we have a nameref variable as the coproc name, but
	  it can't be assigned to for some reason, remove the nameref attribute
	  and  issue a warning that we are doing so
	- coproc_setvars: don't allow assignment to a nameref variable with an
	  invalid variable name, using same code as find_or_make_array_variable

general.c
	- valid_nameref_value: disallow values consisting solely of digits,
	  like the positional parameters

builtins/declare.def
	- declare_internal: don't call valid_nameref_value on the existing value
	  of a variable that's being converted to a nameref -- that value is
	  going to be thrown away and we've already checked the new value
	- declare_internal: call bind_variable_value with the ASS_NAMEREF flag
	  if we're assigning to an existing nameref variable (for instance,
	  `declare -n x ; declare x=42')

				    5/5
				    ---
variables.c
	- make_local_variable: if we are being asked to create a local copy of
	  a nameref variable from a prior scope (checked by looking up
	  using find_variable_noref), use the nameref variable, not the variable
	  it references (which we find using find_variable).  Bug report from
	  Grisha Levit <grishalevit@gmail.com> ; fix by Piotr Grzybowski
	  <narsil.pl@gmail.com>

builtins/declare.def
	- declare_internal: if asked to do the same thing as above (difference
	  is declare -n r=foo in previous case; declare -n r in this one),
	  don't follow reference var from a previous context.  Create a new
	  local variable (using make_local_variable) and inherit attributes
	  from previous scope's nameref as above

				    5/6
				    ---
builtins/declare.def
	- declare_internal: if we are assigning a value to an existing
	  invisible nameref variable, validate value early so we don't end up
	  removing the variable after the assignment fails

builtins/shopt.def
	- toggle_shopts: don't call set_bashopts here unless $BASHOPTS exists,
	  since we don't want to set it up before it gets read from the
	  environment. Keeping BASHOPTS read-only should keep users from
	  unsetting it.  Fix from Grisha Levit <grishalevit@gmail.com>
	- shopt_set_debug_mode: make sure error_trace_mode reflects the setting
	  of extdebug.  This one is tentative.  Fix from Grisha Levit
	  <grishalevit@gmail.com>
	- shopt_set_debug_mode: call set_shellopts after setting error_trace_mode
	  or function_trace_mode.  Fix from Grisha Levit <grishalevit@gmail.com>

shell.c
	- start_debugger: make sure that function_trace_mode and error_trace_mode
	  reflect the value of debugging_mode, so they are both disabled if we
	  disable debugging mode because we can't find the debugger start file.
	  Fix from Grisha Levit <grishalevit@gmail.com>
	- start_debugger: set $SHELLOPTS and $BASHOPTS to the option values are
	  reflected if we change or set them here.  Fix from Grisha Levit
	  <grishalevit@gmail.com>

builtins/set.def
	- reset_shell_options: add reset values for: posix, nolog, pipefail.
	  Fix from Grisha Levit <grishalevit@gmail.com>

builtins/shopt.def
	- reset_shopt_options: add reset values for: autocd, checkjobs,
	  complete_fullquote, dirspell, failglob, globstar, gnu_errfmt,
	  huponexit, inherit_errexit, interactive_comments, lastpipe,
	  no_empty_cmd_completion, progcomp.  Fix from Grisha Levit
	  <grishalevit@gmail.com>
	- reset_shopt_options: make sure the following options have the right
	  defaults based on #defines: checkjobs, checkwinsize, direxpand,
	  extglob, globasciiranges.  Fix from Grisha Levit
	  <grishalevit@gmail.com>

flags.c
	- reset_shell_flags: add missing flags, re-initialize history_expansion
	  based on STRICT_POSIX

				    5/8
				    ---
lib/readline/histexpand.c
	- history_expand: if any expansion returns 1 from history_expand_internal,
	  indicating that :p was supplied, make it apply to the entire line
	  like tcsh and csh.  Fixes bug reported by Dean Stanton
	  <dstanton@tintri.com>

variables.[ch]
	- ifsname: move define to variables.h

execute_cmd.c
	- execute_for_command: check whether or not the word in the for command
	  is IFS; call setifs every time the variable is assigned a value.
	  Fixes bug report from Grisha Levit <grishalevit@gmail.com>

				   5/16
				   ----
general.c
	- valid_nameref_value: explicitly handle name == 0 and *name == 0 right
	  away to save calls to legal_identifier

builtins/declare.def
	- declare_internal: if trying to set nameref attribute on a variable
	  with a null value, flag as invalid assignment, just as if running
	  `declare -n r=""'.  Fixes bug report from Grisha Levit
	  <grishalevit@gmail.com>
	- declare_internal: when creating a variable with a temporary value
	  (""), use ASS_FORCE in the assignment flags to bypass name validity
	  checks on nameref variable names

variables.c
	- bind_variable_internal: don't call valid_nameref_value if we're
	  forcing assignment with (flags & ASS_FORCE)

builtins/read.def
	- read_builtin: handle bind_variable returning NULL when setting REPLY.
	  Report and fix from Grisha Levit <grishalevit@gmail.com>

builtins/setattr.def
	- set_var_attribute: handle bind_variable returning NULL

lib/sh/tmpfile.c
	- sh_seedrand(): call srandom() to seed the random number generator
	- sh_mktmpname, sh_mktmpfd: if we have random(), assume we have
	  srandom() and seed the random number generator. Still looking for
	  better value to see random number generator with

variables.c
	- check_unbind_variable: use internal_error instead of builtin_error

{execute_cmd,variables}.c
	- fix some places where bind_variable could return NULL and it was not
	  checked.  Fix from Piotr Grzybowski <narsil.pl@gmail.com>

				   5/17
				   ----
arrayfunc.c
	- convert_var_to_{array,assoc}: make sure to turn off nameref attribute,
	  since namerefs can't be arrays

execute_cmd.c
	- coproc_setvars: if the coproc name names a nameref, resolve the
	  nameref and use it as the name of the coproc.  Suggested by Grisha
	  Levit <grishalevit@gmail.com>

subst.c
	- command_substitute: don't bother calling QUIT after calling
	  reset_signal_handlers in the child, kill the child with SIGINT in
	  case we just reset the signal handler to SIG_DFL and we should just
	  exit instead of throwing to top level.  Fixes bug reported by
	  Grisha Levit <grishalevit@gmail.com>

				   5/18
				   ----
variables.c
	- find_variable_nameref_for_create: find a nameref variable whose value
	  doesn't resolve to an existing variable and see whether or not that
	  value is appropriate for a new variable to be created
	- find_variable_nameref_for_assignment: find a nameref variable whose
	  value doesn't resolve to an existing variable and see whether or not
	  that value is appropriate for a new variable to be created.
	  Difference between _assignment and _create is that _assignment
	  allows the nameref value to be a subscripted array reference

builtins/setattr.def
	- set_var_attribute: if variable lookup doesn't return anything, check
	  for a nameref and make sure that any reference value is something we
	  should be working on here, using find_variable_nameref_for_create().
	  If it fails, error out and return, otherwise it's probably a reference
	  to a variable that hasn't been set yet, so let bind_variable take care
	  of that.  Report from Grisha Levit <grishalevit@gmail.com>

arrayfunc.c
	- bind_array_variable: if find_shell_variable returns NULL, check for a
	  nameref using find_variable_nameref_for_create and create a new array
	  variable with the value if it returns a valid nameref variable.
	  Makes `unset var; declare -n ref=var ; ref[0]=foo' work right.
	  Report from Grisha Levit <grishalevit@gmail.com>

				   5/19
				   ----
variables.[ch]
	- unbind_variable_noref: unset a variable NAME without following any
	  nameref chain.  If the first instance of the variable with that name
	  is a nameref, just unset that nameref variable.

builtins/getopts.def
	- getopts_unbind_variable: if OPTARG is going to be unbound, use
	  unbind_variable_noref to unbind that name even if it is a nameref
	  variable.  Issue raised by Grisha Levit <grishalevit@gmail.com>

execute_cmd.c
	- coproc_unsetvars: use unbind_variable_noref in case someone sets the
	  coproc _PID variable as a nameref pointing to something read-only or
	  strange.  Issue raised by Grisha Levit <grishalevit@gmail.com>

builtins/set.def
	- set_ignoreeof: use unbind_variable_noref to unset "IGNOREEOF" and
	  "ignoreeof"
	- set_posix_mode: use unbind_variable_noref to unset "POSIXLY_CORRECT"

variables.c
	- make_vers_array: use unbind_variable_noref to unset "BASH_VERSINFO"

lib/sh/shmatch.c
	- sh_regmatch: use unbind_variable_noref to unset "BASH_REMATCH"

bashline.c
	- bash_execute_unix_command: use check_unbind_variable to unset
	  READLINE_LINE and READLINE_POINT

pcomplete.c
	- unbind_compfunc_variables: use unbind_variable_noref to unset
	  COMP_LINE, COMP_POINT, COMP_WORDS, COMP_CWORD, COMP_TYPE, COMP_KEY
	- gen_shell_function_matches: use unbind_variable_noref to unset
	  COMPREPLY

config-top.h
	- USE_MKTEMP/USE_MKSTEMP: define by default to use libc version of
	  mktemp and mkstemp in lib/sh/tmpfile.c.  Recommended by Mike
	  Frysinger <vapier@gentoo.org> to fix a FreeBSD problem

configure.ac,config.h.in
	- mkstemp: check for mkstemp, define HAVE_MKSTEMP if available

config-bot.h
	- USE_MKSTEMP: #undef if HAVE_MKSTEMP not defined

				   5/22
				   ----
variables.c
	- assign_in_env: if appending to a variable's value, make sure we call
	  make_variable_value with the empty string if expand_assignment_string_to_string
	  returns NULL, as do_assignment_internal does.  Fixes bug with
	  `str=''; val=foo ; val+=str printenv val' reported by Grisha Levit
	  <grishalevit@gmail.com>
	- assign_in_env: if assigning to a nameref variable in the temporary
	  environment, and the nameref has a valid value for assignment (even
	  if the target variable is not set), resolve the nameref and create
	  a variable in the temporary environment named by the nameref's value.
	  If the nameref variable is invisible or isn't set to a valid value
	  for assignment, just create a regular temporary variable with the
	  nameref's name.  This provides a degree of ksh93 compatibility.
	  Suggested by Grisha Levit <grishalevit@gmail.com>
	- find_variable_nameref_context,find_variable_last_nameref_context:
	  instead of returning NULL when detecting a loop, return a
	  distinguished value: &nameref_maxloop_value
	- bind_variable: catch nameref_maxloop_value so we can do different
	  things based on whether or not we get it.  Right now we don't do
	  anything different, but we could

				   5/24
				   ----
lib/readline/display.c
	- update_line,_rl_move_cursor_relative: save value of MB_CUR_MAX in a
	  variable and use it throughout the functions instead of recomputing it
	  every time (which possibly costs a function call)

				   5/25
				   ----
builtins/declare.def
	- declare_internal: only check whether the value being assigned to a
	  nameref variable is a valid identifier if we're not appending to an
	  existing value.  Suggested by Grisha Levit <grishalevit@gmail.com>
	- declare_internal: add a couple of more checks on nameref names:
		o make sure `declare -n x[3]=y' is an error
		o nameref variable self-references now produce a warning when
		  in function scope
		o nameref variable self-references using subscripted arrays
		  (a=a[0]) now produce warnings at function scope and errors at
		  global scope

				   5/29
				   ----
builtins/declare.def
	- declare_internal: use name of readonly variable when calling sh_readonly	
	  instead of name passed as argument to declare in case we've followed
	  a nameref chain
	- declare_internal: when turning off attributes on a nameref variable
	  after following the nameref chain and turning them off on the target
	  variable, don't allow the readonly attribute to be removed.  This is
	  primarily intended to turn off the nameref attribute.  Issue pointed
	  out by Grisha Levit <grishalevit@gmail.com>
	- declare_internal: if we are attempting to modify an existing global
	  nameref variable, and the -n option is supplied, operate on the
	  nameref variable itself, not the variable it references

doc/{bash.1,bashref.texi}
	- change the descriptions of namerefs and declare -n slightly to note
	  that using the -n option to declare will operate on the nameref
	  variable itself rather than the variable it references

variables.c
	- bind_variable_internal: if trying to assign to a read-only variable,
	  print the error message using the variable's name instead of the
	  name passed to bind_variable in case we followed a nameref

builtins/declare.def
	- declare_internal: when we're creating a (possibly invisible) variable
	  as part of another operation, assigning NULL, make sure to use
	  ASS_FORCE to avoid warning messages from any existing nameref
	  variables we follow
	- declare_internal: allow the nameref attribute to be removed from a
	  readonly nameref variable without a value but do not allow it to be
	  removed from a readonly nameref variable that has a value, even if it
	  doesn't reference an existing variable.  This distinction is for ksh93
	  compatibility.  Pointed out by Grisha Levit <grishalevit@gmail.com>

				   5/31
				   ----
builtins/declare.def
	- declare_internal: if the call to bind_variable_value fails for some
	  reason, make sure to restore the nameref attribute to flags_on and
	  flags_off before calling NEXT_VARIABLE

subst.c
	- make_internal_declare: handle += append op
	- shell_expand_word_list: when transforming assignment statement
	  arguments to `declare', make sure to handle += append op to avoid
	  passing invalid identifiers to declare.  Report by Grisha Levit
	  <grishalevit@gmail.com>

				    6/1
				    ---
builtins/declare.def
	- declare_internal: if a nameref assignment fails, only call delete_var
	  to delete the variable if we created it in declare_internal in the
	  first place

general.c
	- check_selfref: new function, checks a NAME against a VALUE for nameref
	  self-reference

general.h
	- check_selfref: extern declaration

builtins/declare.def
	- declare_internal: call check_selfref to determine whether a given NAME
	  and VALUE constitute an invalid nameref variable self-reference

variables.c
	- bind_variable_internal: call check_selfref to determine whether a
	  given NAME and VALUE constitute an invalid nameref variable self-
	  reference

				    6/2
				    ---
parse.y
	- clear_shell_input_line: new function, clears contents of shell_input_line
	  and sets index to 0, but doesn't free it

externs.h
	- clear_shell_input_line: extern declaration

builtins/evalstring.c
	- parse_and_execute: call clear_shell_input_line after setting input to
	  string to be executed.  Fixes problem with command substitution and
	  multi-line aliases reported by Grisha Levit <grishalevit@gmail.com>

eval.c
	- parse_command: only execute PROMPT_COMMAND if the shell is not
	  currently expanding an alias; use the same tests as parse.y:SHOULD_PROMPT
	  and parse.y:prompt_again() use to decide whether or not to print a
	  prompt.  Fixes problems with PROMPT_COMMAND and multi-line aliases
	  reported by Grisha Levit <grishalevit@gmail.com>

builtins/set.def
	- unset_builtin: changes to fix three problems reported by Grisha
	  Levit <grishalevit@gmail.com>:
		o if -n is supplied, we should not try to unset a function if
		  a variable isn't found
		o unsetting namerefs whose values are array references does
		  not work
		o unset -n n[0], where n is a nameref, would unset the
		  referenced variable instead of `n'

redir.c
	- redir_varvalue: handle case where nameref var points to subscripted
	  array reference.  Reported by Grisha Levit <grishalevit@gmail.com>

variables.c
	- bind_variable_value: make sure to call check_selfref only if aflags
	  includes ASS_NAMEREF and not ASS_FORCE.  Reported by Grisha Levit
	  <grishalevit@gmail.com>

general.c
	- valid_nameref_value: now understands a FLAGS value of 2 to mean that
	  the name will be used to create a variable, so only legal_identifier
	  matters

arrayfunc.c
	- find_or_make_array_variable: call valid_nameref_value with FLAGS value
	  of 2 to indicate we will be creating a variable.  Fixes mapfile issue
	  reported by Grisha Levit <grishalevit@gmail.com>

				    6/5
				    ---
builtins/declare.def
	- declare_internal: only pass ASS_FORCE as part of assignment flags to
	  assignments concerning arrays
	- declare_internal: when at the global scope, if we resolve a nameref
	  and commit to using the new name, go back to to the beginning of the
	  loop and use the new name in the checks and variable references.
	  Make sure we construct the new name as a straight substitution of
	  the nameref value into the old name, including array subscripts and
	  rebuilding the correct values for `offset' and `value', since they
	  are relative to the original value of name.
	  Fixes several issues with checking use of subscripted array variables
	  as nameref values
	- declare_internal: when calling assign_array_element, make sure to
	  pass ASS_APPEND if aflags includes it, so things like
		declare -a var; var[1]=1; declare var[1]+=4
	  append to the value appropriately and var[1] ends up being `14'

arrayfunc.c
	- valid_array_reference: make sure the array reference is properly
	  terminated after the first subscript; return invalid if there is
	  anything following the closing `]'

				   6/12
				   ----
variables.c
	- bind_variable_internal: if asked to perform an array subscript
	  assignment on a nameref variable, display a warning and remove the
	  nameref attribute (as bash-4.3 did).  Reported by Dan Douglas
	  <ormaaj@gmail.com>

				   6/14
				   ----
test.c
	- posixtest: handle four-argument case where argv[1] == '(' and
	  argv[4] == ')' by performing two-argument test on $2 and $3.
	  Reported by Joerg Schilling <Joerg.Schilling@fokus.fraunhofer.de>

				   6/15
				   ----
variables.c
	- sv_ignoreeof: make sure ignoreeof is set only if IGNOREEOF is set and
	  has a value (no `local IGNOREEOF'). Reported by Grisha Levit
	  <grishalevit@gmail.com>
	- sv_strict_posix: make sure posixly_correct is set only if
	  POSIXLY_CORRECT is set and has a value.  Reported by Grisha Levit
	  <grishalevit@gmail.com>

				   6/16
				   ----
builtins/declare.def
	- declare_internal: analogous to 6/12 change; when performing an array
	  subscript assignment on a nameref, display a warning, remove the
	  nameref attribute, and go on

				   6/21
				   ----
execute_cmd.c
	- shell_execve: make sure errno is (re)set appropriately before
	  returning error value on exec format error

				   6/23
				   ----
subst.c
	- param_expand: when expanding $* in a context where splitting is not
	  desired (pflags & PF_ASSIGNRHS), make sure to quote the word and the
	  included separators.  Reported by Dan Douglas <ormaaj@gmail.com>

				   6/30
				   ----
configure.ac
	- release version is now `beta2'

execute_cmd.c
	- execute_simple_command: even if already_making_children is non-zero,
	  don't call wait_for if last_made_pid == NO_PID.  Indirectly inspired
	  by report from Nicolas Vivet <nicolas@nzx.io>

				    7/2
				    ---
subst.c
	- expand_word_internal: when adding an IFS character to the accumulated
	  string, don't quote it if word expansion is not going to be
	  performed ((word->flags & (W_NOSPLIT|W_NOSPLIT2)) == 0) in the
	  default case.  This was already the case everwhere else, when we did
	  `goto add_ifs_character;'.  Fixes bug reported by Ibrahim M. Ghazal
	  <imgx64@gmail.com>

subst.[ch],arrayfunc.c
	- string_list_dollar_at: now takes a new third argument, currently
	  reserved for future use; changed callers and declaration

				    7/7
				    ---
[bash-4.4-beta2 frozen]

				    7/9
				    ---
bashline.c
	- check_redir: make sure that index is > 0 before checking previous
	  char; fixes out of bounds read reported by Hanno BÃ¶ck
	  <hanno@hboeck.de>

				   7/16
				   ----
subst.c
	- parameter_brace_expand: if ${array[@]} or ${array[*]} is supplied
	  with an unset (or empty) array, and -u is enabled, don't make it
	  an unbound variable error, like $@ or $* when there are no
	  positional parameters.  Based on report from Ian Allen
	  <idallen@idallen-fibe.dyndns.org>

lib/readline/signals.c
	- rl_pending_signal(): return the number of any signal readline has
	  caught but is waiting to handle

lib/readline/callback.c
	- rl_persistent_signal_handlers: new variable, restores readline-6.2
	  signal handler semantics: installed at rl_callback_handler_install
	  time and removed with rl_clear_signals when a complete line has
	  been read
	- _rl_callback_newline: call rl_set_signals if rl_persistent_signal_handlers
	  is non-zero
	- rl_callback_read_char: install signal handlers with rl_set_signals
	  if rl_persistent_signal_handlers is 0 (the default)
	- CALLBACK_READ_RETURN: uninstall signal handlers with rl_clear_signals
	  only if rl_persistent_signal_handlers is 0 (the default)

lib/readline/readline.h
	- rl_pending_signal: new extern declaration
	- rl_persistent_signal_handlers: new extern declaration

				   7/19
				   ----
execute_cmd.c
	- execute_while_or_until: make sure we decrement `continuing' the way
	  we decrement `breaking' if the loop test indicates we will be
	  breaking out of the loop.  That keeps `until continue' from
	  keeping `continuing' set to 1.  Reported by Dan Douglas
	  <ormaaj@gmail.com>

				   7/20
				   ----
trap.c
	- run_pending_traps,_run_trap_internal: save and restore temporary_env,
	  set temporary_env to 0 before trap runs so traps don't inherit a
	  command's temporary env.  Fixes bug with IFS assignment in tempenv
	  and trap reported by Andriy Martynets <martynets@volia.ua>

jobs.c
	- run_sigchld_trap: save and restore temporary_env, set temporary_env
	  to 0 before trap runs so traps don't inherit a command's temporary
	  env (see above)

				   7/21
				   ----
execute_cmd.c
	- execute_function: unwind-protect function_line_number, in case we
	  are executing a function inside another function.  Reported by
	  Grisha Levit <grishalevit@gmail.com> in context of evaled functions
	  and DEBUG traps
	- execute_arith_for_command,execute_arith_command,execute_simple_command,
	  execute_cond_command: make sure line_number doesn't go < 0 when
	  adjusting it by function_line_number

				   7/23
				   ----
subst.c,command.h
	- move the PF_ constants to command.h so other files can see them, now
	  that PF_ASSIGNRHS has meaning to string_list_dollar_at

arrayfunc.h
	- AV_ASSIGNRHS: new flag, indicate that ${a[@]} is being expanded on
	  the RHS of an assignment statement

arrayfunc.c
	- array_value_internal: if AV_ASSIGNRHS passed for ${a[@]}, pass
	  PF_ASSIGNRHS to string_list_dollar_at to support args separated by
	  spaces even if $IFS does not have the default value.  Reported by
	  Dan Douglas <ormaaj@gmail.com>

subst.c
	- string_list_dollar_at: if FLAGS argument includes PF_ASSIGNRHS, obey
	  rules for $@ on the RHS of an assignment statement: expand to
	  postitional parameters separated by spaces no matter what the first
	  character of $IFS is.  Reported by Dan Douglas <ormaaj@gmail.com>
	- parameter_brace_expand_word: pass AV_ASSIGNRHS as flags value to
	  array_value if PF_ASSIGNRHS is set and we are expanding an array
	  variable subscripted by @ or *
	- param_expand: pass pflags to string_list_dollar_at in case it contains
	  PF_ASSIGNRHS
	- expand_word_internal: if we have an assignment statement argument to
	  a declaration builtin (W_ASSIGNARG), turn on W_ASSIGNRHS when we see
	  the `=' to enable special $@ behavior
	- expand_word_internal: if W_ASSIGNARG enabled in word flags, pass that
	  flag and W_ASSIGNRHS to recursive call to expand_word_internal when
	  expanding double-quoted string; handles "$@" when IFS is not the
	  default value and word splitting will not be performed

subst.c
	- expand_word_internal: change case that handles '' (single-quoted
	  empty string) to only discard it if we will not be performing word
	  splitting (W_NOSPLIT|W_NOSPLIT2), since we need to add a quoted null
	  argument if the subsequent characters will cause word splitting.
	  This is how "" (double-quoted empty string) is handled after a bug
	  fix back in August 2010.  Reported by Grisha Levit
	  <grishalevit@gmail.com>, fix for Posix interp 888

				   7/27
				   ----
subst.c
	- param_expand: change fix from 6/23 (expanding $* in a context where
	  word splitting is not performed) to make sure that $* expands to
	  something before trying to quote the string.  Bug and fix from
	  Andreas Schwab <schwab@suse.de>

lib/readline/bind.c
	- _rl_get_string_variable_value: fix a cut-and-paste error that caused
	  the emacs mode string to be displayed for both vi insert and command
	  mode strings.  Report and fix from Steve Jones <sjml@slohj.org>

				   7/28
				   ----
lib/readline/display.c
	- update_line: we can't use PROMPT_ENDING_INDEX unless we're testing
	  against _rl_last_c_pos; if we are testing buffer indices, we need to
	  use prompt_last_invisible directly.  Fixes mode string redisplay issue
	  with short prompt strings reported by Steve Jones <sjml@slohj.org>

				    8/4
				    ---
nojobs.c
	- without_job_control: new function, resets child state that's
	  eventually used to decide whether or not to wait_for children

execute_cmd.c
	- initialize_subshell: call without_job_control in both the
	  JOB_CONTROL and no job control paths so we can reset the state in
	  subshells that will not cause them to wait_for children
	  inappropriately.  Fixes bug reported by Dan Cross <crossd@gmail.com>

				    8/5
				    ---
configure.ac
	- release version is now `rc2'

bashline.c
	- command_word_completion_function: if direxpand is set, make sure to
	  run hint_text through bash_directory_completion_hook, since
	  readline will do that and we want to be able to match the results
	  readline returns.  Fixes bug reported by Pat Somaru
	  <tuf18542@temple.edu>

command.h
	- W_COMPLETE: new flag word value
	- PF_COMPLETE: new flags value for param_expand

subst.h
	- SX_STRIPDQ: new flag, used for string_extract_double_quoted

bashline.c
	- bash_filename_stat_hook,bash_directory_completion_hook: pass W_COMPLETE
	  flag to expand_prompt_string

subst.c
	- expand_word_internal: if W_COMPLETE in word->flags, pass PF_COMPLETE
	  to param_expand
	- param_expand: if PF_COMPLETE in pflags, pass SX_COMPLETE to
	  extract_command_subst.  This allows `"$(echo ~/' to perform
	  completion successfully
	- string_extract_double_quoted: turn third argument into a flags arg,
	  old STRIPDQ is now set if flags&SX_STRIPDQ
	- string_extract_double_quoted: changed callers, if third argument was
	  1, pass SX_STRIPDQ instead
	- expand_word_internal: if W_COMPLETE in word->flags, pass SX_COMPLETE
	  in flags to string_extract_double_quoted for case '"'
	- string_extract_double_quoted: if SX_COMPLETE in flags, pass it to
	  extract_command_subst
	- expand_word_internal: if W_COMPLETE in word->flags, make sure W_COMPLETE
	  is in temp word passed to recursive call to expand_word_internal to
	  expand double-quoted string.  Fixes bug reported by John Passaro
	  <john.a.passaro@gmail.com>

				    8/9
				    ---
[bash-4.4-rc2 frozen]

				   8/10
				   ----
subst.c
	- sub_append_string: use size_t variable to store string length to
	  avoid integer overflow.  Report from Siteshwar Vashisht
	  <svashisht@redhat.com>
	- sub_append_string: `size' argument is now pointer to size_t; changed
	  istring_index in expand_word_internal to accommodate change

lib/sh/ufuncs.c
	- include "posixselect.h" if HAVE_SELECT is defined, make sure that
	  fd_set and the rest are defined

				   8/11
				   ----
lib/readline/histexpand.c
	- history_tokenize_word: use ISDIGIT instead of isdigit for more
	  argument checking
	- "chardefs.h": include for ISDIGIT define and <ctype.h>.  Fix from
	  Mike Frysinger <vapier@gentoo.org>

lib/sh/eaccess.c,externs.h
	- sh_eaccess: first argument now const char *
	- sh_stataccess,sh_euidaccess: first argument now const char *, since
	  sh_stat and sh_eaccess call them.
	  Fix from Mike Frysinger <vapier@gentoo.org>

lib/glob/glob.c
	- sh_eaccess: change local prototype

general.[ch]
	- all_digits,legal_identifier,valid_nameref_value,importable_function_name,
	  exportable_function_name,check_binary_file,file_exists,file_isdir,
	  file_iswdir,same_file,make_absolute,valid_nameref_value: first
	  argument (always identifier or filename) is now a `const char *';
	  some second filename arguments now `const char *'.
	  Fix from Mike Frysinger <vapier@gentoo.org>

configure.ac,config.h.in
	- uintptr_t: make sure it's defined to an integer type wide enough to
	  hold a pointer

lib/sh/tmpfile.c
	- sh_seedrand: use `uintptr_t' to cast pointer value to int value,
	  instead of allowing truncation to take place, since srandom takes
	  an `unsigned int'.
	  Fix from Mike Frysinger <vapier@gentoo.org>

arrayfunc.[ch]
	- valid_array_reference,array_variable_name,array_variable_part,
	  array_value_internal,array_value,get_array_value: first argument
	  (always variable name) now a `const char *'
	  Fix from Mike Frysinger <vapier@gentoo.org>

				   8/19
				   ----
print_cmd.c
	- xtrace_print_word_list: if (xtflags & 2), don't try to quote the
	  words in the LIST argument.  Intended to be used in places where
	  the list has not yet been expanded
	- xtrace_print_for_command_head: call xtrace_print_word_list with
	  flags argument of 2.  Fixes issue reported by Aharon Robbins
	  <arnold@skeeve.com>
	- xtrace_print_select_command_head: call xtrace_print_word_list with
	  flags argument of 2

				   8/21
				   ----
lib/sh/netopen.c
	- netopen: fix memory leak by freeing allocated path before error
	  return.  Fix from Dmitry Goncharov <dgoncharov@users.sf.net>

doc/{bash.1,bashref.texi}
	- change conditional commands description to make it clearer that
	  bash doesn't emulate /dev/fd if the OS provides it

				   8/22
				   ----
braces.c
	- expand_amble: free partial and tem on failure to allocate memory
	  for merged partial+result strvec.  Fix from Dmitry Goncharov
	  <dgoncharov@users.sf.net>

				   8/23
				   ----
jobs.c
	- wait_for: don't call get_tty_state when a job finishes if we're
	  running it as part of programmable completion.  We test
	  rl_readline_state.  Fixes bug reported by Jaro Punta
	  <silly8888@gmail.com>

				   8/24
				   ----
subst.c
	- pat_subst: fix memory leak (mstr).  Fix from Dmitry Goncharov
	  <dgoncharov@users.sf.net>
	- split_at_delims: fix memory leak (d2).  Fix from Dmitry Goncharov
	  <dgoncharov@users.sf.net>

				   8/26
				   ----
subst.c
	- match_upattern,match_wpattern: make sure that a trailing `*' is
	  not escaped (preceded by an odd number of backslashes) before we
	  append a `*' when checking whether a pattern matches anywhere in
	  the string

lib/readline/{input,signals}.c
	- protect instances of SIGQUIT with #ifdef SIGQUIT; apparently
	  MinGW doesn't define it
	- protect instances of SIGHUP with #ifdef SIGHUP; apparently
	  MinGW doesn't define it.  From a report from Simon Sobisch
	  <simonsobisch@gnu.org>

xmalloc.o
	- allocerr: only try to find the break and report it if we're using
	  the bash malloc; there's no guarantee that any other malloc is
	  using sbrk()

doc/{bash.1,bashref.texi}
	- quote removal: add paragraph mentioning quote removal to beginning
	  of expansions section, referencing later paragraph.  Report from
	  Michel Lanne <michel.lanne@gmail.com>

				   8/30
				   ----
lib/readline/input.c
	- protect instances of SIGALRM and SIGWINCH with #ifdef; apparently
	  MinGW doesn't define them.  From a report from Simon Sobisch
	  <simonsobisch@gnu.org>

subst.c
	- SPECIAL_VAR: make sure name is not the empty string before going on,
	  empty strings can result in unitialized reads
	- CHECK_STRING_OVERRUN: semi-general macro to use in *extract* and
	  similar functions to to check whether a function called to parse an
	  embedded construct (like a backquoted command substitution) doesn't
	  consume the entire string because it's unterminated
	- skip_double_quoted: make sure other extraction functions don't
	  consume the entire string (which they can if the construct is
	  unterminated) before incrementing the index and going on.  Uses
	  CHECK_STRING_OVERRUN
	- extract_dollar_brace_string: check for unterminated embedded
	  constructs consuming the entire string with CHECK_STRING_OVERRUN ('`')
	- skip_matched_pair: use CHECK_STRING_OVERRUN to make sure unterminated
	  embedded "`", $(, ${ don't cause out-of-bounds reads

parse.y
	- parse_comsub: when parsing a here-document delimiter, make sure we
	  don't try to use `nestret' after freeing it.  Fixes bug reported by
	  Franco Costantini <franco.costantini.20@gmail.com>

[bash-4.4 frozen]

				   9/10
				   ----
trap.c
	- run_debug_trap: only give the terminal to pipeline_pgrp if
	  subshell_environment doesn't include SUBSHELL_ASYNC|SUBSHELL_PIPE.
	  Fixes bug reported by Matthew Giassa <matthew@giassa.net>

execute_cmd.c
	- execute_simple_command: if user_subshell is set, check and set
	  SUBSHELL_ASYNC if asynchronous is set as well as setting
	  SUBSHELL_PAREN

				   9/17
				   ----
builtins/common.c
	- display_signal_list: if 0 is supplied as an argument to kill -l,
	  display a signal-out-of-range error.  Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				   9/18
				   ----
print_cmd.c
	- print_heredoc_bodies: take a list of redirections, all here documents,
	  and print the here-document bodies including the ending delimiter,
	  followed by a newline
	- print_redirection_list: print the heredoc headers the first time
	  through the list of redirections so we print them in the same left-
	  to-right order they're supplied; print the bodies and delimiters with
	  print_heredoc_bodies after we print all the redirections if we're
	  not printing a list of commands (printing_connection == 0).  Fix for
	  problem reported by Isabella Parakiss <izaberina@gmail.com>
	- print_deferred_heredocs: don't print heredoc headers, since they're
	  now printed in print_redirection_list
	- print_deferred_heredocs: use print_heredoc_bodies

				   9/20
				   ----
builtins/mapfile.def
	- readarray: update usage synopsis to include -d delim.  Report and
	  fix from jhankins@homewood.k12.al.us

test.c
	- test_binop: if op[0] == '-', make sure op[1] != 0 before checking
	  op[2] or op[3].  Fixes out-of-bounds read reported by Franco
	  Costantini <franco.costantini.20@gmail.com>

parse.y
	- cond_term: if yylval.word->word[0] == '-' make sure word[1] != 0
	  before checking word[2] and calling test_unop.  Fixes out-of-bounds
	  read reported by Franco Costantini <franco.costantini.20@gmail.com>
	- make sure to check all instances of the return value of the
	  simple_command production before trying to hook redirections onto it,
	  since it can potentially return NULL.
	  Reported by Franco Costantini <franco.costantini.20@gmail.com>

				   9/21
				   ----
parse.y
	- token_is_assignment: make sure to check that the return value from
	  assignment() finds the `=' we just added at index I to avoid false
	  positives from g=g=g=g=g=g=().  Reported by Franco Costantini
	  <franco.costantini.20@gmail.com>

				   9/22
				   ----
parse.y
	- token_is_assignment: if we're not using the bash malloc (which has
	  guard bytes after the requested allocation size), use a new
	  buffer so we can make sure it's big enough to hold the current
	  token and at least two additional characters.  Reported by
	  Franco Costantini <franco.costantini.20@gmail.com>

				   9/23
				   ----
execute_command.c
	- execute_in_subshell: call without_job_control for both job control
	  and non-job-control builds to avoid waiting for last_made_pid
	  inherited from parent shell.  Related to fix from 8/4 to
	  initialize_subshell.  Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>

builtins/declare.def
	- local_builtin: allow `local --help' to work even when not executing
	  a function. Suggestion from Norm Abramovitz <norm@starkandwayne.com>

				   9/25
				   ----
builtins/printf.def
	- bexpand: if passed a null or empty string, return a newly-allocated
	  empty string (so the return value can always be freed) instead of
	  NULL.
	- printstr: if passed a null string, treat it as if it were an empty
	  string so any precision or fieldwidth arguments are handled
	  correctly.  Report from isabella parakiss <izaberina@gmail.com>

subst.c
	- skip_matched_pair: make the flags argument of 1 affect whether or
	  not backslash can quote characters in the string, so it affects
	  all quoting mechanisms

arrayfunc.c
	- unbind_array_element: now takes a third (flags) argument; flags&1
	  means to not expand an associative array index. This is only called
	  from a shell builtin context, which means the argument should have
	  already undergone word expansion, so it should be ok.  Will still
	  be a problem for uses like "unset -v 'var[$ind]'", quoted to avoid
	  globbing
	- valid_array_reference: pass second flags argument to skipsubscript;
	  still set to 0 by all callers

arrayfunc.h
	- unbind_array_element: updated prototype

builtins/set.def
	- unset_builtin: add third argument of 1 to unbind_array_element calls
	  [TEMPORARILY DISABLED]
	- unset_builtin: call valid_array_reference with second arg of 1 to
	  handle unmatched pairs of quotes and [/]

array.c
	- array_reference: optimize access locality as well as sequential
	  access by adding ability to start from last-accessed element and move
	  backwards or forwards depending on the desired index.  Inspired by
	  report from Tom McCurdy <tom.j.mccurdy@gmail.com> and followup from
	  Christian Franke <Christian.Franke@t-online.de>

variables.c
	- all_array_variables: include associative arrays, not just indexed
	  arrays.  Reported by Grisha Levit <grishalevit@gmail.com>

execute_cmd.c
	- execute_disk_command: if we're optimizing out the fork (CMD_NO_FORK),
	  decrement the shell level so we don't end up incrementing it twice.
	  We should decrement the shell level for an implicit exec like an
	  explicit one.  Reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

builtins/exec.def
	- exec_builtin: don't bother to decrement the shell level if we are
	  already in a `(command)' subshell.  Reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

lib/readline/macro.c
	- macro_level: count of macro nesting level, maintained by
	  _rl_push_executing_macro and _rl_pop_executing macro
	- _rl_with_macro_input: if current nesting level exceeds
	  MAX_MACRO_LEVEL, abort the current command line with _rl_abort_internal
	  and return to the top level.  Reported by Christian Klomp
	  <christianklomp@gmail.com>

lib/readine/history.c
	- add_history: if allocating the history list for the first time,
	  make sure the max history list size isn't so large that it will
	  cause allocation errors.  Cap it at MAX_HISTORY_INITIAL_SIZE
	  (8192).  Reported by Sean Zha <freeman_cha@hotmail.com>

jobs.c
	- wait_for: if a foreground job with job control enabled is killed by a
	  SIGINT and sourcelevel != 0, act as if we received the SIGINT so the
	  file sourcing can be terminated.  Reported by PePa
	  <peterkelly@passchier.net>

				   9/26
				   ----
subst.c
	- read_comsub: only warn once for null bytes in command substitution
	  output, instead of once for every null byte

arrayfunc.c
	- array_variable_part: now takes a `flags' argument; changed all callers
	  to initially pass 0
	- array_variable_name: now takes a `flags' argument; changed all callers
	  to initially pass 0
	- array_variable_name: pass `flags' argument to skipsubscript instead
	  of just passing 0

arrayfunc.h
	- array_variable_{name,part}: added new argument to prototypes

				   9/29
				   ----
bashline.c
	- bash_directory_completion_hook: don't bother to try and expand a
	  ${ or $( that isn't complete; expand_prompt_string will complain.
	  Fixes reports from John Passaro <john.a.passaro@gmail.com> and
	  Valentin Bajrami <valentin.bajrami@gmail.com>

lib/readline/history.c
	- _hs_append_history_line: use a strategy that attempts to avoid
	  realloc copying memory to a newly-allocated block if the history
	  line we're appending to gets `too long' (currently 256 bytes).
	  We reallocate in powers of 2 starting at 512, and rely on realloc
	  not allocating a new block and copying into it if the size is the
	  same as the last call to realloc.  Addresses issue raised by
	  Hubert Schmid <h.schmid@gmx.de>

trap.h
	- check_signals: new extern declaration
	- trapped_signal_received: new extern declaration

builtins/read.def
	- read_builtin: if one of the zread* functions returns < 0 (which
	  usually only happens in Posix mode), make sure we call check_signals()
	  before eventually calling run_pending_traps() because zread() isn't
	  going to call it
	- include trap.h for correct extern functions and variable declarations

lib/sh/zread.c
	- zread: if executing a builtin, call check_signals_and_traps() for
	  backwards compatibility.  If not, call check_signals() only, because
	  we don't want to run traps during, for instance, reading command
	  substitution output.  Fixes race condition bug reported by Luiz Angelo
	  Daros de Luca <luizluca@gmail.com>

				   9/30
				   ----
subst.c
	- command_substitute: reset parse_and_execute_level to 0 in the child
	  process, since it's independent of the other parse_and_execute
	  calls.  Adds command substitution inside other parse_and_execute
	  calls optimizations to suppress forks, as suggested by
	  Martijn Dekker <martijn@inlv.org>

				   10/3
				   ----
configure.ac
	- SHOBJ_STATUS: make sure it defaults to unsupported and is substituted
	  if the shobj-conf script isn't run.  Fixes `make install' bug with
	  a minimal config reported by Andrew Tomazos <andrewtomazos@gmail.com>

				   10/5
				   ----
support/shobj-conf
	- darwin: set compatibility_version for a shared build of the readline
	  library (the standalone readline distribution shares this file) to
	  $(SHLIB_MAJOR)$(SHLIB_MINOR).  Recommendation from Max Horn
	  <max@quendi.de>

				   10/6
				   ----
array.h
	- array_first_index: new convenience define

array.c
	- ADD_AFTER: new define, complement of ADD_BEFORE
	- UNSET_LASTREF: now takes an array as an argument, prepping for move
	  of lastref pointer into the array struct
	- array_insert: check whether we are adding at the beginning of the
	  array and take a fast path if so
	- array_insert: use same strategy as array_reference to find the place
	  to insert, starting from the last-referenced element and moving
	  forward or back from there; use ADD_AFTER if moving backward
	- array_insert: if replacing an existing element, just replace the
	  value with new->value instead of the entire element
	- array_reference: short-circuit quickly if looking for an element
	  before the first assigned index
	- array_reference: if we don't find the element, leave lastref pointing
	  to the closest element under the assumption we will be assigning or
	  looking for something close
	- array_reference: take advantage of ordered indexes to short-circuit
	  when looking for element that is not set

				   10/7
				   ----
array.c
	- array_remove: short-circuit if asked to remove index after max
	  index or before first index

				   10/10
				   -----
lib/malloc/malloc.c
	- internal_realloc: if we are requesting reallocation to the same size
	  as the block's current size, short-circuit and return `mem' right
	  after doing bounds check
	- internal_realloc: if we are reducing the size of an allocation, and
	  the new size fits in the next lower bin, just keep the same block
	  and adjust the size, so we can avoid some copies

parse.y
	- set_line_mbstate: keep track of the allocated size of
	  shell_input_line_property, only request reallocation if the size
	  increases, but don't let it get too big

				   10/11
				   -----
jobs.c
	- wait_for_background_pids: make sure we wait for pid in
	  last_procsub_child since it's not found in any job -- still needs
	  more work to wait for multiple process substitutions

subst.c
	- process_substitute: if make_child fails, make sure we call
	  restore_pipeline to undo the previous save_pipeline()

				   10/15
				   -----
subst.c
	- process_substitute,command_substitute: leave subshell_level (reflected
	  as $BASH_SUBSHELL) intact for any exit trap instead of decrementing
	  it.  Suggested by Martijn Dekker <martijn@inlv.org>

builtins/evalstring.c
	- optimize_subshell_command: new function, framework for optimizing
	  out forks for command that have already forked and are executing
	  in a subshell. Not used yet

expr.c
	- readtok: if we have a post-increment or post-decrement, and the
	  previous token is not a string, check whether the previous token is
	  a number that results from a pre-increment or pre-decrement, and
	  make that an error.  Report from Conrad Hoffmann <ch@bitfehler.net>

				   10/16
				   -----
aclocal.m4
	- BASH_JOB_CONTROL_MISSING: convert from AC_TRY_RUN to AC_TRY_COMPILE
	  with existing set of preprocessor defines, so it can work when
	  cross-compiling.  Suggested by Felix Janda <felix.janda@posteo.de>

				   10/19
				   -----
variables.c
	- get_bashpid: BASHPID is no longer readonly; assignments to it are
	  just ignored.

doc/{bash.1,bashref.texi}
	- BASHPID: note that assignments are ignored and unsetting BASHPID
	  causes it to lose its special properties

				   10/28
				   -----
builtins/pushd.def
	- popd_builtin: make sure to check the normalized stack offset
	  (i.e., negatives counting back from the end of the stack) is within
	  bounds before trying to free that stack entry.  Report from
	  Fernando MuÃ±oz <fernando@null-life.com>

lib/readline/histfile.c
	- chown: protect calls with HAVE_CHOWN.  Fixes for MinGW{64,32} from
	  J. Peter Mugaas <jpmugaas@suddenlink.net>

lib/readline/colors.c
	- S_ISDIR: add define if missing
	- S_ISUID, S_ISGID, S_ISLNK, S_ISSOCK: don't use unless defined.
	  Fixes for MinGW{64,32} from J. Peter Mugaas <jpmugaas@suddenlink.net>

bashhist.c
	- current_command_line_comment: set to the most recent line in a
	  possibly multi-line command that contains a shell comment; set in
	  maybe_add_history and bash_add_history to either the current
	  command number or -2
	- maybe_add_history: set current_command_line_comment for first line
	  of command
	- bash_add_history: chars_to_add set to "\n" if the current command line
	  is one greater than the previous line containing a comment
	  (current_command_line_comment).  Fixes complaint from back in
	  January, 2016 from Dave Rutherford <dave@evilpettingzoo.com>

array.h
	- lastref: move last-referenced pointer into each array struct, so all
	  arrays can have reference locality

array.c
	- array_create: set lastref element to 0
	- array_copy: if copying the lastref in array a, set the new lastref
	  in the copy to the same element
	- IS_LASTREF, LASTREF_START, LASTREF, INVALIDATE_LASTREF, SET_LASTREF,
	  UNSET_LASTREF: change to use new array `lastref' member

pathexp.c
	- quote_string_for_globbing: if quoting for a regexp, make sure to
	  skip and copy a leading `^' in a bracket expression, and skip and
	  copy a subsequent `]' (after an optional `^'), so that leading
	  bracket doesn't close the bracket expression.  Report from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/29
				   -----
subst.c
	- extract_delimited_string: add calls to CHECK_STRING_OVERRUN for
	  $( inside $((, nested OPENERs, nested ALT_OPENERs, and backquotes
	- skip_to_delim: add calls to CHECK_STRING_OVERRUN for $(, ${,
	  process substitution
	- extract_dollar_brace_string: add calls to CHECK_STRING_OVERRUN for
	  $(
	- extract_dollar_brace_string: use skipsubscript to skip over the
	  array subscript in ${var[sub]} (non-quoted case uses string_extract,
	  which already uses skipsubscript).  Tagged for bash-5.0

				   10/30
				   -----
variables.c
	- EPOCHSECONDS: new dynamic variable, time in seconds since Unix
	  epoch; assignments are ignored.  Can be used on systems where
	  strftime() doesn't support '%s'
	- EPOCHREALTIME: new dynamic variable, time in seconds since Unix
	  epoch with microsecond granularity

doc/{bash.1,bashref.texi}
	- EPOCHSECONDS documentation
	- EPOCHREALTIME documentation

execute_cmd.c
	- decpoint: moved to locale.c, renamed locale_decpoint; changed callers

{bashintl,externs}.h
	- locale_decpoint: extern declaration or #define if support for
	  localeconv() not there

				   10/31
				   -----
lib/malloc/malloc.c
	- posix_memalign: add new posix-mandated interface

examples/loadables/rm.c
	- rm: minimal loadable builtin, removes files and directories, only
	  handles -r and -f options.  Original from Tim Ruehsen
	  <tim.ruehsen@gmx.de>, heavily rewritten for inclusion as loadable

examples/loadables/Makefile.in
	- rm: add rules to build rm as one of the `other' targets

examples/loadables/stat.c
	- stat: new loadable builtin that takes a filename and loads the info
	  returned by stat(2) into an associative array specified by the -A
	  argument (default STAT)

				   11/1
				   ----
variables.c
	- BASH_ARGV0: new dynamic variable, returns $0 on reference and sets
	  $0 on assignment.  From a suggestion from  Rocky Bernstein <rocky@gnu.org>
	  a few years ago

doc/{bash.1,bashref.texi}
	- BASH_ARGV0: document

				   11/2
				   ----
lib/glob/sm_loop.c
	- parse_collsym: make sure to not return an out-of-bounds read if a
	  collating symbol is unterminated.  Fixes OOB read reported by
	  Jerzy Kramarz <op7ica@gmail.com>
	- brackmatch: after incrementing p, before checking whether it's a
	  character range, check whether *p was NULL before the increment
	  and short-circuit the bracket expression if it is

jobs.c
	- discard_last_procsub_child: new function, safely discards
	  last_procsub_child and sets it to NULL

subst.c
	- process_substitute: call discard_last_procsub_child instead of
	  calling discard_pipeline directly.  Fixes bug reported by
	  Christian Weisgerber <naddy@mips.inka.de>

				   11/3
				   ----
shell.h
	- EX_DISKFALLBACK: new special return status available to builtins;
	  means to attempt to execute a disk command with the same name as
	  the builtin

examples/loadables/rm.c
	- if we see the -i option, return EX_DISKFALLBACK

execute_cmd.c
	- execute_simple_command: if executing a builtin returns EX_DISKFALLBACK,
	  try running execute_disk_command instead 

bashline.c
	- shell_expand_line: use expand_word to expand the readline line
	  buffer, which allows us to pass flags with the word. If a numeric
	  argument is supplied, do not perform quote removal (pass
	  Q_HERE_DOCUMENT since here-doc quoting does the right thing) and
	  do not perform command or process subsitution.  From a suggestion
	  by Dabrien 'Dabe' Murphy <dabe@dabe.com> based on an old bug-bash
	  discussion

subst.c
	- expand_word_internal: note that we have added a quoted IFS char to
	  istring by setting sentinel has_quoted_ifs.  Usually we only add
	  one if we are not going to be performing word splitting, but we
	  will not perform word splitting if there's no expansion, so we need
	  to take care of that case
	- expand_word_internal: when performing final word split, if there are
	  no expansions but has_quoted_ifs is non-zero, call remove_quoted_ifs()
	  to remove any quoted ifs characters we added while processing
	- remove_quoted_ifs: new function, removes CTLESC chars preceding
	  (single-byte) chars in IFS. Used when we are not performing word
	  splitting.  Fixes bug reported by Martijn Dekker <martijn@inlv.org>

				   11/4
				   ----
lib/readline/macro.c
	- _rl_peek_macro_key: return the next character from the current
	  keyboard macro; the next character from the `next' keyboard macro,
	  if there is one, if at the end of the current macro; or 0 to
	  indicate that we are at the end of a keyboard macro sequence

lib/readline/rlprivate.h
	- _rl_peek_macro_key: extern declaration

lib/readline/readline.c
	- _rl_dispatch_subseq: add test for ESC at the end of a keyboard macro,
	  which should cause the keyboard timeout for ESC to kick in.  The
	  previous test didn't run the timeout code if executing from a macro,
	  even if we had read the last character of the macro.  Fixes bug
	  reported by Clark Wang <clarkw@vmware.com>

lib/glob/sm_loop.c
	- GMATCH: allow trailing backslash in pattern to explicitly match a
	  backslash that is the last character in the string.  Bug report from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   11/5
				   ----
builtins/common.c
	- display_signal_list: if displaying a signal name corresponding to an
	  exit status > 128, don't display the SIG prefix at all.  Old code
	  made displaying the SIG prefix dependent on JOB_CONTROL define.
	  Report and fix from Martijn Dekker <martijn@inlv.org>

execute_cmd.c
	- execute_subshell_builtin_or_function: call without_job_control even
	  if JOB_CONTROL is not defined. Similar to fix from 9/23.
	  Report from Martijn Dekker <martijn@inlv.org>

execute_cmd.c
	- execute_simple_command: free memory allocated and passed to
	  make_child in the child process if JOB_CONTROL is defined
	- execute_command_internal: free memory allocated and passed to
	  make_child in the child process created to run a () subshell or a
	  compound command within a pipeline if JOB_CONTROL is defined
	- execute_coproc: free memory allocated and passed to make_child in
	  the child process if JOB_CONTROL is defined
	- execute_disk_command: free memory allocated and passed to
	  make_child in the child process if JOB_CONTROL is defined.  This
	  series of fixes is the result of reports from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

				   11/6
				   ----
lib/sh/unicode.c
	- u32toutf16: fix to prevent outputting broken surrogate pairs for
	  Japanese locales (ja_JP.UTF-8) on cygwin (which uses UTF-16 natively).
	  Report and fix from Koichi MURASE <myoga.murase@gmail.com>

builtins/trap.def
	- trap_builtin: if OP is `-' (revert), set the SIGINT signal handler
	  to sigint_sighandler if the shell is interactive and sourcing a
	  file (interactive_shell && sourcelevel) or running a trap
	  (interactive_shell && running_trap) even if it's not currently
	  interactive.  Report from Martijn Dekker <martijn@inlv.org>

builtins/read.def
	- check for and read multibyte characters in all cases, not just when
	  we are reading a specific number of characters, as long as
	  mb_cur_max > 1

subst.c
	- expand_word_internal: some improvements to code that converts istring
	  into a WORD_LIST * to avoid multiple allocations and copies of
	  istring, which is already malloc'ed memory -- reduce number of malloc
	  and free calls

test.c
	- unary_test: make sure if we test -v array[@] or array[*] that we
	  free the return value from array_value

				   11/8
				   ----
expr.c
	- expcond: make sure to set `noeval' before reading tokens depending on
	  the result of the conditional test, since readtok() can evaluate
	  identifiers (and recursively those containing expressions).  Report
	  and fix from Koichi MURASE <myoga.murase@gmail.com>

builtins/evalstring.c
	- should_suppress_fork: make sure to check for traps on EXIT and
	  ERR, since any_signals_trapped() only checks for `real' signals,
	  not the fake shell ones.  Fixes bug reported by Werner Fink
	  <werner@suse.de>
	- optimize_subshell_command: ditto

				   11/9
				   ----
eval.c
	- reader_loop: change so that we don't reset the SIGINT handler every
	  time through the command loop in an interactive shell if the signal
	  is trapped (as the comment noted).  Reported by Report from Martijn
	  Dekker <martijn@inlv.org>

subst.c
	- parameter_brace_{patsub,remove_pattern,transform,casemod}: save and
	  restore this_command_name while temporarily setting it for use in
	  error messages.  Fixes use-after-free error reported by
	  Jerzy Kramarz <op7ica@gmail.com>
	- string_extract_verbatim: make sure when we increment i by 2 due to
	  a CTLESC or CTLESC-CTLNUL that we don't read past the end of the
	  string. This can happen if the string ends with an odd number of
	  CTLESC chars. Fixes oob-read error reported by
	  Jerzy Kramarz <op7ica@gmail.com>

				   11/11
				   -----
configure.ac,aclocal.m4
	- BASH_FUNC_SBRK: make sure sbrk actually works, instead of being just
	  a stub function like on several Linux distributions

lib/malloc/malloc.c
	- malloc_usable_size: return the maximum number of bytes available for
	  a particular memory allocation (size of block allocated for it)

				   11/12
				   -----
configure.ac
	- changes to make --enable-profiling work on Linux (-pg, no static link,
	  no -static in LDFLAGS)

Makefile.in
	- changes to make --enable-profiling work on Linux (take
	  ${PROFILE_FLAGS} out of  BASE_CCFLAGS, add to CCFLAGS instead; add
	  BASE_LDFLAGS define that doesn't include -pg or -static; use
	  BASE_LDFLAGS in LDFLAGS; move ${PROFILE_FLAGS} and ${STATIC_LD} to
	  LDFLAGS)

tests/run-gprof
	- changes to make profiling test suite with gprof work on Linux (set
	  GMON_OUT_PREFIX to handle multiple profiled processes per test;
	  change default filename to gmon.out from bash.gmon; look for
	  gprof output files in ${TMPDIR} instead of /tmp; handle multiple
	  profiling files starting with $GMON_OUT_PREFIX)

locale.c
	- locale_isutf8: use locale_charset() if it's available and nl_langinfo
	  isn't
	- locale_isutf8: add code to parse a locale specification and determine
	  whether the encoding is UTF-8 (or utf8) in the absence of
	  nl_langinfo and locale_charset
	- set_default_locale: make sure to set locale_utf8locale early on
	- locale_utf8locale: set via call to locale_isutf8 wherever LANG,
	  LC_ALL, or LC_CTYPE is set

				   11/13
				   -----
lib/readline/display.c
	- rl_redisplay: handle report of potential integer overflow in
	  horizontal display mode from Mateusz Lenik <mlen@mlen.pl>

lib/sh/mbschr.c
	- mbschr: if in a UTF-8 locale (locale_utf8locale) and we are looking
	  for an ASCII character, use (essentially) strchr as a shortcut

lib/sh/shmbchar.c
	- utf8_{mbstrlen,mblen,mbsmbchar,mbsnlen}: UTF-8-specific replacement
	  functions (should also be able to use utf8_mblen in subst.c:
	  string_extract_verbatim)
	- mbsmbchar: if locale_utf8locale is true, call utf8_mbsmbchar
	- mbsmbchar: in UTF-8 locale, use utf8_mblen instead of mbrlen (not
	  used if earlier shortcut taken)

lib/sh/unicode.c
	- u32cconv: don't use nl_langinfo early to call u32toutf8()
	- u32cconv: use locale_utf8locale to set utf8locale
	- u32cconv: when initializing (u32init == 0), use locale_charset, then
	  nl_langinfo, then stub_charset to determine the charset
	- u32cconv: even if we don't have iconv, if locale_utf8locale is non-
	  zero, return u32toutf8

				   11/15
				   -----
lib/readline/nls.c
	- _rl_init_locale: new function, split off code that determines current
	  locale from _rl_init_eightbit, use it to set _rl_utf8locale

lib/readiline/rlprivate.h
	- _rl_init_locale: new extern declaration

lib/readline/readline.c
	- rl_initialize: if not initializing everything the first time, call
	  _rl_init_locale to check current locale and set _rl_utf8locale

lib/readline/text.c
	- _rl_insert_char: optimize cases where we are inserting a single-byte
	  character in a locale with multibyte characters
	- _rl_insert_char: check whether character is single byte if we know
	  we are in a UTF-8 locale, optimize single-byte case to avoid calls
	  to mbrtowc and memmove/memcpy

lib/readline/mbutil.c
	- _rl_char_value: if we are in a UTF-8 locale (_rl_utf8locale) and the
	  current character does not have the eighth bit set ((c & 0x80) == 0),
	  return that char without bothering to call mbrtowc
	- _rl_adjust_point: don't bother calling mbrlen if we are in a UTF-8
	  locale and the current character is not a multibyte character
	- _rl_find_next_mbchar_internal: if we are in a UTF-8 locale, use that
	  to avoid calls to mbrtowc

lib/readline/display.c
	- _rl_col_width: if in a UTF-8 locale, take advantage of that to avoid
	  calls to mbrlen and mbrtowc
	- rl_redisplay: if in a UTF-8 locale, take advantage of that to avoid
	  calls to mbrtowc

				   11/17
				   -----
lib/readline/histlib.h
	- PATTERN_SEARCH: new flag for history search interfaces, means to
	  search for a pattern as Posix specifies

lib/readline/histsearch.c
	- history_search_internal: now takes a `flags' argument instead of just
	  an `anchored' argument to accommodate PATTERN_SEARCH
	- _hs_history_patsearch: new internal interface to use when flags
	  specify PATTERN_SEARCH

lib/readline/rlprivate.h
	- SF_PATTERN: new flag for non-incremental search contexts, means to
	  treat search string as a pattern (maps to PATTERN_SEARCH)

lib/readline/search.c
	- noninc_dosearch: takes an additional `flags' argument for SF_PATTERN
	- noninc_search_from_pos: takes an additional `flags' argument for
	  SF_PATTERN
	- noninc_dosearch: pass flags argument through to noninc_search_from_pos
	- _rl_nsearch_init: if we are in vi command mode, and `pchar' (key used
	  to invoke the search) is `?' or `/', add SF_PATTERN to the flags
	  to conform to Posix spec for vi-mode editing
	- _rl_nsearch_dosearch: if cxt->sflags indicates that we should do a
	  pattern search, pass SF_PATTERN to noninc_search_from_pos
	- rl_noninc_forward_search_again: if in vi command mode and key == `N',
	  make sure flags arg passed to noninc_dosearch includes SF_PATTERN
	- rl_noninc_reverse_search_again: if in vi command mode and key == `n',
	  make sure flags arg passed to noninc_dosearch includes SF_PATTERN
	- rl_history_search_internal: pass extra flags arg to noninc_search_from_pos

				   11/18
				   -----
lib/readline/search.c
	- noninc_search_from_pos: takes a new argument, a pointer to int where
	  it stores the offset of the match in the history line (if non-NULL),
	  modified callers
	- rl_history_search_internal: pass newcol pointer to
	  noninc_search_from_pos to avoid having to recompute the match offset
	  in the matching history entry

config.h.in
	- define HAVE_FNMATCH if we have the fnmatch function (configure was
	  already checking for it)

lib/readline/histsearch.c
	- _hs_history_patsearch: transform the pattern into one ending in a
	  `*' to avoid having to perform multiple match attempts from each
	  index in the history line
	- history_search_internal: changes to handle pattern matching if
	  PATTERN_SEARCH is in the flags and HAVE_FNMATCH is defined.  This
	  makes vi-mode history searching treat the user-specified search
	  string as an fnmatch pattern, as Posix requires.  Fixes issue
	  reported by <jwdevel@gmail.com>

				   11/19
				   -----
builtins/shopt.def
	- shopt_enable_hostname_completion: only declare this if READLINE
	  defined, since that's the only time it's used.  Reported by
	  isabella parakiss <izaberina@gmail.com>

				   11/20
				   -----
builtins/common.c
	- display_signal_list: make `kill -l 0' print `EXIT', modifying change
	  from 9/17

				   11/21
				   -----
subst.c
	- expand_word_internal: when the shell encounters a backslash as the
	  last character of the string, don't try to add a '\'0' to the end
	  of the string if the string is quoted, just add a <CTLESC><\> and
	  skip to the end of string processing.  Fixes oob-read error
	  reported by Jerzy Kramarz <op7ica@gmail.com>

test.c
	- two_arguments: check argv[pos][1] before checking argv[pos][2] when
	  looking for a unary argument.  Fixes oob-read error on single `-'
	  in unary operator position reported by Jerzy Kramarz
	  <op7ica@gmail.com>
	- ANDOR: check s[1] before checking s[2] in case s[1] == end of string.
	  Fixes oob-read error reported by Jerzy Kramarz <op7ica@gmail.com>

subst.c
	- command_substitute: now takes additional flags argument, changed one
	  caller (param_expand) to pass through PF_ASSIGNRHS flag; other callers
	  pass 0
	- command_substitute: pass through flags argument to read_comsub
	- read_comsub: now takes additional new flags argument to indicate
	  whether or not the word is in a context where word splitting will
	  eventually be performed
	- read_comsub: if we are running in a context where word splitting
	  will not take place (PF_ASSIGNRHS), we read a CTLESC, and CTLESC is
	  in $IFS, add a CTLESC to make sure it gets through a round of
	  dequoting

				   11/23
				   -----
parse.y
	- xparse_dolparen: since reset_parser frees the pushed string list,
	  and this is supposed to be a separate parsing context, we need to
	  save and restore pushed_string_list around the call to parse_string
	  and reset_parser.  Fixes bug reported by Dan Douglas
	  <ormaaj@gmail.com>

bashhist.h
	- HISTEXPAND_DEFAULT: default value of history_expansion, moved here
	  from flags.c

flags.[ch]
	- histexp_flag: new variable, this is what set -H/set -o histexpand
	  sets; history_expansion set to value of this variable; defaults to 0
	- history_expansion: now set to HISTEXPAND_DEFAULT

bashhist.c
	- bash_history_reinit: if interact == 0, set history_expansion to the
	  value of histexp_flag, to allow -H option to enable history
	  expansion
	- bash_history_reinit: if interact == 0, make sure
	  history_expansion_inhibited is set opposite of histexp_flag, so
	  enabling history expansion with -H invocation option turns off
	  inhibited expansion. If interactive shell, we turn it off so
	  history_expansion controls whether or not history expansion takes
	  place. In practice, this function is always called with interact == 0,
	  and -c command still doesn't perform history expansion

shell.c
	- init_interactive: make sure histexp_flag and history_expansion are
	  identical in an interactive shell; allows both -H/+H option and
	  default compilation options (HISTEXPAND_DEFAULT) to work

				   11/24
				   -----
subst.c
	- get_word_from_string: take advantage of the fact that SEPARATORS is
	  always a (possibly local) copy of IFS, so build a local charmap of
	  separators and use it instead of the (cached and possibly stale)
	  ifs_cmap map and isifs macro.  Fixes bug with -N stripping leading
	  whitespace reported by Clark Wang <clarkw@vmware.com>

				   11/25
				   -----
builtins/read.def
	- read_builtin: make `i' volatile, since auto variables are technically
	  undefined after a longjmp, and a timeout on SIGALRM causes one.
	  Fix suggested by Dmitry Goncharov <dgoncharov@users.sf.net>

				   11/27
				   -----
parse.y
	- shell_getc: if we are reading input from a string, and we get the
	  ending '\0', and we are not expanding an alias, return EOF right
	  away.  It might be an eval'ed string that has a syntax error.
	  Fixes bug reported by Dan Douglas <ormaaj@gmail.com>

				   11/28
				   -----
subst.c
	- expand_word_internal: if we're expanding a quoted string containing
	  a tilde as the first character of a word, only expand the tilde if
	  we're expanding an array subscript (Q_ARRAYSUB), not if we're
	  expanding any arithmetic expression (Q_ARITH).  This fixes a
	  backwards compatibility issue with expressions like ~0 reported by
	  Bize Ma <binaryzebra@gmail.com>

subst.c
	- parameter_brace_expand_indir: if the variable is not special and
	  the indirect variable is unset (!variable where variable is unset),
	  report an error.  This is a slight incompatibility with previous
	  versions, which did not differentiate between indirecting an unset
	  variable and an indirect expansion resulting in an unset variable.
	  Fixes omission reported by otenba@protonmail.com

				   11/30
				   -----
lib/readline/doc/{rluser.texi,readline.3},doc/bash.1
	- do-uppercase-version: since this doesn't actually exist, replace it
	  with do-lowercase-version, with the caveat that do-lowercase-version
	  results in undefined behavior if bound to a character that's
	  already lowercase.  Suggested by Branden Robinson
	  <g.branden.robinson@gmail.com>

lib/readline/doc/rluser.texi
	- history-substring-search-forward: was misspelled as "substr-search";
	  ditto for search-backward

doc/bash.1
	- history-substring-search-{backward,forward}: add documentation, text
	  straight from readline.3

jobs.c
	- initialize_job_control: if the terminal's process group is valid,
	  but the shell is not the foreground process, check for terminating
	  signals (like SIGHUP, which the kernel would send if the process
	  group were orphaned) during the loop where we try to stop the shell
	  if it's not in the foreground.  Not a perfect solution; the kernel
	  might not send SIGHUP

				   12/1
				   ----
jobs.c
	- initialize_job_control: only go through the SIGTTIN loop 16 times at
	  most before deciding we're in the background and probably a member of
	  an orphaned process group; set original_pgrp to the terminal's pgrp
	  (so the eventual give_terminal_to doesn't leave the terminal in the
	  wrong pgrp); and bail on job control initialization

tests/run-all
	- unset SHELLOPTS to avoid its options `polluting' the test
	  environment.  Suggestion from Vladimir Marek
	  <Vladimir.Marek@oracle.com>

tests/execscript
	- use $PWD/exec8.sub to protect against someone who has a cd command
	  in his bashrc.  Report from  Vladimir Marek
	  <Vladimir.Marek@oracle.com> 

				   12/2
				   ----
shell.c
	- open_shell_script: call end_job_control before exiting the shell in
	  case we were run as `bash -i script' and there is a problem with
	  executing `script'.  If we don't, the terminal ends up in the wrong
	  process group.  Fix from Clark Wang <clarkw@vmware.com>

				   12/3
				   ----
parse.y
	- read_comsub: if we look for a character following a `<' and it's
	  not `<' (indicating that we don't have to read a here-document),
	  make sure we push that character back and go through the loop again
	  so we note the right word start location.  Fixes bug reported by
	  parasite parasite <42parasite@gmail.com>

subst.c
	- parameter_brace_expand_indir: clean up checks for unset variables to
	  minimize incompatibilities with previous versions

				   12/5
				   ----
lib/readline/history.c
	- add_history: don't update history_length until all of the updates to
	  the_history are complete, so history_length is always consistent.
	  Report and fix from Hong Cho <hong.cho@citrix.com>

bashline.c
	- bash_backward_shellword: fix to work better at the end of the line,
	  with multiple trailing whitespace characters.  Inspired by report
	  from Kirill Timofeev <kt97679@gmail.com>

Makefile.in
	- bashbug: use `^' as the sed delimiter instead of `%'; some compilers
	  use `%' in CFLAGS.  Report from  Vladimir Marek
	  <Vladimir.Marek@oracle.com> 

				   12/6
				   ----
test.c
	- test_unop: make sure op[1] != 0 before testing op[2]
	- term: make sure argv[pos][1] != 0 before testing argv[pos][2].  Fixes
	  oob-read reported by Jerzy Kramarz <op7ica@gmail.com>

				   12/7
				   ----
lib/glob/glob.c
	- glob_filename: assign the return value of realloc (results, ...) to
	  a temp pointer, so if realloc returns NULL, we make sure we free
	  results.  Report from Kirill Timofeev <kt97679@gmail.com>

				   12/12
				   -----
lib/sh/shquote.c
	- sh_backslash_quote: if FLAGS&2, backslash-quote other single-byte
	  characters that are in the current locale's <blank> character class

builtins/printf.def
	- printf_builtin: when processing the `%q' format, make sure to
	  backslash quote all <blank> characters by making sure that FLAGS
	  passed to sh_backslash_quote includes 2.  Fixes issue for certain
	  iso-8859-1 locales where character 160 (octal 240, hex 0xa0) is a
	  non-breaking space. Report from Stephane Chazelas
	  <stephane.chazelas@gmail.com>

lib/sh/eaccess.c
	- sh_stat: if DEV_FD_STAT_BROKEN is defined, take /dev/fd/N and turn
	  it into a stat on file descriptor N, as if /dev/fd were not
	  available.  This is the case on some old versions of SunOS.  Report
	  and patch from Dmitry Goncharov <dgoncharov@users.sf.net>

config.h.in
	- DEV_FD_STAT_BROKEN: add define

configure.ac
	- --enable-dev-fd-stat-broken: new command-line option, defines
	  DEV_FD_STAT_BROKEN if supplied at configure time

doc/bashref.texi
	- --enable-dev-fd-stat-broken: document new command-line option for
	  configure

arrayfunc.c
	- assoc_expand_once: new variable, declared here just because

arrayfunc.h
	- assoc_expand_once: extern declaration
	- AV_NOEXPAND: new flag value for the array_value family of functions:
	  means to not run associative array subscripts through word expansion

builtins/set.def
	- unset_builtin: call unbind_array_element with assoc_expand_once as
	  third arg, controls whether we expand associative array subscripts
	  (if 1, we suppress the usual expansion).  With accompanying shopt,
	  provides backwards compatible option to solve problem with quotes
	  and other characters in associative array subscripts pointed out
	  most recently by Mingye Wang (Arthur2e5) <arthur200126@gmail.com>

builtins/shopt.def
	- assoc_expand_once: new option, controls value of internal variable
	  with the same name. Currently undocumented because I'm not completely
	  sold on the name

expr.c
	- evalexp: now takes a second argument, flags. Changed all callers in
	  multiple other files (builtins/let.def,execute_cmd.c,arrayfunc.c,
	  subst.c,test.c,variables.c)

externs.h
	- EXP_EXPANDED, new flag for second argument to evalexp

builtins/let.def
	- let_builtin: add EXP_EXPANDED to flags passed to evalexp

execute_cmd.c
	- execute_arith_command: add EXP_EXPANDED to flags passed to evalexp,
	  since the command string is run through expand_words_no_vars before
	  being evaluated

expr.c
	- set expression-global variable already_expanded if flags arg to
	  evalexp contains EXP_EXPANDED
	- if assoc_expand_once option set and already_expanded flag set, pass
	  1 in flags to array_variable_part to skip over quotes and expansions
	  in the subscript
	- if those two variables set, pass AV_NOEXPAND as flag to
	  get_array_value to prevent word expansions on the subscript

arrayfunc.c
	- if flags passed to unbind_array_element includes 1, pass flag on to
	  skipsubscript so we don't expect matched quotes or process
	  expansions in the subscript
	- if flags to array_value_internal include AV_NOEXPAND, pass 1 as flag
	  to array_variable_part to pass along to skipsubscript
	- if flags to array_value_internal include AV_NOEXPAND, don't call
	  expand_assignment_string_to_string; just use the unexpanded subscript
	  to produce the key [THIS IS A WORK IN PROGRESS]

				   12/14
				   -----
subst.h
	- ASS_NOEXPAND: assignment flag that inhibits expansion of associative
	  array subscripts

variables.c
	- bind_int_variable: takes new flags arg; flags are taken from the
	  ASS_ set of assignment flags, changed callers (bashline.c, expr.c,
	  pcomplete.c)
	- bind_int_variable: if flags includes ASS_NOEXPAND, pass 1 as flag to
	  valid_array_reference and array_variable_part to pass along to
	  skipsubscript, so we don't try to skip over quoted strings in the
	  subscript
	- bind_int_variable: pass flags along to assign_array_element

variables.h
	- bind_int_variable: updated extern declaration with new flags arg

expr.c
	- expr_bind_variable: if the assoc_expand_once option is enabled, and
	  the flags to evalexp indicate that we have already run the expression
	  through word expansion, pass ASS_NOEXPAND as flag to bind_int_variable

arrayfunc.c
	- assign_array_element: if flags includes ASS_NOEXPAND, pass 1 as flag
	  to array_variable_name to pass along to skipsubscript
	- assign_array_element: if flags includes ASS_NOEXPAND, don't run an
	  associative array subscript through word expansion, just use as-is

subst.c
	- param_expand: call evalexp with EXP_EXPANDED flag for arithmetic
	  substitution because the string has already been expanded with
	  expand_arith_string

				   12/15
				   -----
builtins/read.def
	- read_builtin: use value of assoc_expand_once for valid_array_reference
	  as with other uses
	- bind_read_variable: if assoc_expand_once is set, pass ASS_NOEXPAND
	  to assign_array_element

general.c
	- assignment: instead of checking whether flags == 0 to allow a `[',
	  explicitly check for (flags&1) to disallow it.  This leaves the door
	  open for additional flag values

builtins/printf.def
	- printf_builtin: use value of assoc_expand_once for
	  valid_array_reference as with other uses
	- bind_printf_variable: if assoc_expand_once is set, pass ASS_NOEXPAND
	  to assign_array_element

				   12/16
				   -----
builtins/history.def
	- change history -d option to handle negative arguments; negative
	  arguments offset from the end of the history list (last_position + 1
	  so history -d -1 deletes the history -d command that just got
	  added).  Original patch from Piotr Grzybowski <narsil.pl@gmail.com>

doc/bash.1,lib/readline/doc/hsuser.texi
	- documented new behavior of negative offsets for `history -d'

				   12/17
				   -----
lib/readline/history.c
	- remove_history: use memmove to move the history list around instead
	  of a loop that copies pointers one at a time, similar to add_history

				   12/19
				   -----
configure.ac
	- linux: make sure PGRP_PIPE is defined unconditionally for all kernel
	  versions greater than 2.3.*

lib/readline/history.c
	- clear_history: when clearing the history, reset history_base to 1
	  (its default)
	- remove_history_range: new function, removes a set of history entries
	  and returns them all for deallocation

lib/readline/history.h
	- remove_history_range: extern declaration

				   12/20
				   -----
execute_cmd.c
	- eval_arith_for_expr: pass EXP_EXPANDED to evalexp, since we run the
	  expression through expand_words_no_vars

				   12/21
				   -----
input.c
	- b_fill_buffer: when read returns EOF or error, and we reset the
	  buffer and pointers, reset the input pointer to 0.  Fixes issue
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

				   12/22
				   -----
arrayfunc.[ch],subst.c
	- array_expand_index: added new FLAGS argument, reserved for future use,
	  changed callers


				   12/24
				   -----
variables.c
	- can_optimize_assignment,optimized_assignment: see if we can detect
	  whether or not we're trying to append a string to a string variable,
	  and optimize that using realloc/strcpy.  Based on a log-ago
	  suggestion from Aharon Robbins <arnold@skeeve.com>

				   12/27
				   -----
builtins/help.def
	- help_builtin: don't pass return value from ngettext() directly to
	  printf

				   12/28
				   -----
sig.c
	- set_signal_handler: set SA_RESTART for SIGWINCH, so window size
	  changes don't interrupt open/read/write.  Suggested by
	  Andriy Prystupa <andriy.prystupa@globallogic.com> back in 10/2016

				   12/30
				   -----
execute_cmd.c
	- coproc_pidchk: if MULTIPLE_COPROCS, call cpl_search to find coproc
	  associated with pid, don't remove it from the list with cpl_delete.
	  Just mark as dead and wait for coproc_reap/cpl_reap to take care
	  of disposing it
	- execute_coproc: NEW FEATURE: run the coproc name through word
	  expansion before creating the coproc; this allows unique coprocs
	  to be created in loops. Originally requested way back in 2012 by
	  Erik Brandsberg <ebrandsberg@juniper.net>

command.h
	- subshell_com: now has a line number member: line

make_cmd.c
	- make_subshell_command: assign current line number (line number of the
	  ending right paren) to `line' member

copy_cmd.c
	- copy_subshell_command: copy the `line' member

execute_command.c
	- execute_command_internal: when executing a user subshell (`(command)'),
	  set the line number and line number for the ERR trap from the line
	  number saved in the subshell command struct.  Fix from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>
	- execute_arith_command: set line number for ERR trap from line number
	  saved in the arith command struct.  Fix from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>
	- execute_cond_command: set line number for ERR trap from line number
	  saved in the cond command struct.  Fix from
	  Eduardo A. Bustamante LÃ³pez <dualbus@gmail.com>

variables.c
	- bind_variable_internal: move can_optimize_assignment call to the
	  right place

				   12/31
				   -----
variables.c
	- find_variable_nameref: treat a circular variable reference as
	  referring to a variable of that name in the global scope (for now),
	  if one exists.  PROVISIONAL change: inspired by suggestion back in
	  6/2016 by Grisha Levit <grishalevit@gmail.com>

				 1/2/2017
				 --------
{expr,general,hashcmd}.c
	- include flags.h for flag values

make_cmd.c
	- include shell.h instead of the files it includes

flags.h
	- new extern declarations for want_pending_command, read_from_stdin

subst.h
	- add extern declaration for expanding_redir, assigning_in_environment

trap.h
	- add extern declaration for running_trap

execute_cmd.h
	- added extern declarations for variables declared in execute_cmd.c,
	  changed files that declare lots of extern variables

shell.h
	- added extern declarations for variables declared in shell.c,
	  changed files that declare lots of extern variables 

parser.h
	- added extern declarations for variables declared in parse.y,
	  changed files that declare lots of extern variables 

[lots of changes to reduce the number of extern declarations in C and DEF files]

parse.y
	- xparse_dolparen: need ALIAS or DPAREN_ARITHMETIC to be defined to
	  use STRING_SAVER

				    1/3
				    ---
sig.c
	- termsig_handler: don't call end_job_control if subshell_environment
	  indicates that we're in a command or process substitution.
	  Provisional fix for bug reported by Russell King <rmk@armlinux.org.uk>

jobs.c
	- end_job_control: only attempt to give the terminal back to
	  original_pgrp if job_control != 0; don't test interactive_shell

execute_cmd.c
	- execute_disk_command: call QUIT after search_for_command, since
	  the only time QUIT gets called is when the path is actually
	  searched.  It doesn't happen for an absolute pathname.  Fix for
	  bug reported by Russell King <rmk@armlinux.org.uk>

				   1/16
				   ----
lib/glob/glob.c
	- extglob_skipname,wextglob_skipname: if we don't find a reason to
	  not skip the name in any subpattern (r returns 0 for any subpattern),
	  return 1 because we should skip the name
	- extglob_skipname,wextglob_skipname: if we don't find a reason to
	  not skip the name in any subpattern, but the first part of the extglob
	  pattern is a wildcard (`*(pat)'), check the rest of the pattern, if
	  any, to decide whether or not to skip the name. Fixes bug reported
	  by Grisha Levit <grishalevit@gmail.com>

lib/glob/glob_loop.c
	- CHAR -> GCHAR (unsigned char); change uses of CHAR to GCHAR

lib/glob/glob.c
	- wchkname -> wskipname
	- wskipname: now takes a third `flags' argument, like the other variants
	  of skipname

				   1/17
				   ----
redir.c
	- here_document_to_fd: set the file descriptor open for writing to the
	  here document to be close-on-exec.  Fixes bug reported by
	  Siteshwar Vashisht <svashisht@redhat.com>

				   1/18
				   ----
{gmisc,gm_loop}.c
	- match_pattern_char,match_pattern_wchar: moved to gm_loop.c (new file),
	  compile twice for single and wide characters as with the rest of
	  the functions
	- umatchlen,wmatchlen: ditto
	- extglob_pattern_p: move to gm_loop.c, generalize for regular and
	  wide-char versions

				   1/19
				   ----
lib/readline/complete.c
	- stat_char: fix small memory leak if stat/lstat returns -1

bashline.c
	- bash_filename_stat_hook,bash_directory_completion_hook: make sure
	  expand_prompt_string is caled wth W_NOPROCSUB flag
	- directory_exists: don't dequote the filename passed as an argument;
	  this function should never get quoted pathnames

subst.c
	- expand_word_internal: when calling expand_word_internal recursively
	  after reading a double-quoted string, make sure the W_NOCOMSUB and
	  W_NOPROCSUB flags make it to the recursive invocation.  Fixes bug
	  reported by Jens Heyens <jens.heyens@cispa.saarland>

				   1/23
				   ----
lib/readline/signals.c
	- _rl_orig_sigset: original signal mask, set and restored by
	  rl_set_signals (rl_clear_signals doesn't block signals).  If we
	  are not installing signal handlers, just save signal mask each
	  time rl_set_signals is called

lib/readline/input.c
	- rl_getc: use _rl_orig_sigmask in the call to pselect(), so we block
	  the set of signals originally blocked by the calling application.
	  Fixes bug reported by FrÃ©dÃ©ric BriÃ¨re <fbriere@fbriere.net>

parse.y
	- yy_readline_get: try to unset NONBLOCK mode on readline's input
	  file descriptor before calling readline(). Inspired by report from
	  Siteshwar Vashisht <svashisht@redhat.com>

				   1/30
				   ----
parse.y
	- parse_comsub: don't unconditionally set the LEX_WASDOL flag when we
	  see a `$'; we should toggle it to accommodate things like $$.
	  Fixes bug reported by Christian Weisgerber <naddy@mips.inka.de>
	- parse_matched_pair: do the same thing with LEX_WASDOL

				    2/1
				    ---
jobs.h
	- JWAIT_PERROR,JWAIT_FORCE: new defines for the wait_for_ family of
	  functions

jobs.c
	- wait_for_job, wait_for_any_job: take new flags argument for use by
	  the wait builtin
	- wait_for_job: if JWAIT_FORCE flag supplied, loop waiting for job to
	  terminate instead of change state
	- wait_for_single_pid: if JWAIT_FORCE flag supplied, loop waiting for
	  child process to terminate instead of change state

builtins/wait.def
	- takes a new `-f' option, signifying to wait until the specified job 
	  or process terminates, instead of changes state

doc/{bash.1,bashref.texi}
	- wait: document the new -f option and its behavior when job control
	  is enabled
	- job control: add a paragraph describing how the wait builtin changes
	  behavior when job control is enabled: it returns when a job changes
	  state

				    2/2
				    ---
examples/loadables/fdflags.c
	- fdflags: new loadable builtin to set and unset file descriptor flags
	  (such as non-blocking, though bash undoes that) for descriptors bash
	  has open. Developed in consultation with Christos Zoulas
	  <christos@zoulas.com>

				    2/3
				    ---

lib/readline/text.c
	- rl_previous_screen_line: attempt to move to the same column on the
	  previous screen line of the current readline buffer by moving back
	  a number of characters equal to the screen width
	- rl_next_screen_line: attempt to move to the same column on the
	  next screen line of the current readline buffer by moving forward
	  a number of characters equal to the screen width. Both originally
	  suggested by Hans Ginzel <hans@matfyz.cz>

lib/readline/readline.h
	- rl_{next,previous}_screen_line: extern declarations

lib/readline/funmap.c
	- {next,previous}-screen-line: new bindable command names

lib/readline/doc/{rluser.texi,readline.3}
	- {next,previous}-screen-line: document behavior, including limitations

				    2/5
				    ---
lib/readline/input.c
	- rl_read_key: when reading input from a macro, make sure to return
	  the next character as an unsigned char, so we handle multibyte
	  character sequences correctly.  Report and fix from Grisha Levit
	  <grishalevit@gmail.com>

				    2/6
				    ---
shell.c
	- --pretty-print: new invocation option, currently undocumented, dumps
	  a pretty-printed version of a shell script given as an argument to
	  stdout
	- main: call pretty_print_loop() if we're in pretty-printing mode in
	  a non-interactive shell

eval.c
	- pretty_print_loop: new function, similar to reader_loop, reads
	  commands and prints them by displaying the result from
	  make_command_string()

externs.h
	- pretty_print_loop: new extern declaration

				    2/9
				    ---
doc/{bash.1,bashref.texi}
	- here strings: correct documentation to note they do not undergo
	  brace expansion. Report from Conor McCarthy <mr.spuratic@gmail.com>

				    2/9
				    ---
lib/readline/display.c
	- expand_prompt: instead of recomputing the line break offsets for
	  prompts that span multiple screen lines on every call to rl_redisplay,
	  do it here. Manage a local array local_prompt_newlines; set an offset
	  every time `physchars' hits a multiple of the screen width.  Inspired
	  by https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=843819
	- rl_redisplay: don't calculate multi-line prompt line break indices
	  here; use the values calculated by expand_prompt
	- rl_{save,restore}_prompt: save and restore local_prompt_newlines

				   2/11
				   ----
lib/readline/mbutil.c
	- _rl_find_prev_mbchar_internal: since we're traversing the string
	  from the beginning, shortcut non-multibyte characters in a UTF-8
	  locale

parse.y
	- parse_comsub: if we are parsing a here document with a quoted
	  delimiter (LEX_QUOTEDDOC), we should not remove <backslash><newline>
	  pairs from the body of the here document.  Need to add LEX_QUOTEDDOC
	  to the values in tflags when calling shell_getc.  Fixes bug reported
	  by Michael Homer <michael.homer@ecs.vuw.ac.nz>, patch was originally
	  contributed by Geir Hauge <geir.hauge@gmail.com>

				   2/15
				   ----
jobs.c
	- bgp_add: if hashed pid collides with bgpids.head index, print a
	  warning and move to the next index.  Attempt to avoid collision
	  problem reported by Graham Northup <northug@clarkson.edu>

				   2/17
				   ----
subst.c
	- process_substitute: call remove_quoted_escapes on the command string
	  like command substitution does, since the string will be run through
	  the parser again.  Fixes bug reported by David Simmons
	  <bug-bash@tmp.davidsimmons.com>

config-top.h
	- STATIC_PATH_VALUE: new config variable, undefined by default

variables.c
	- shell_initialize: if STATIC_PATH_VALUE is defined, use it to set the
	  PATH variable at shell startup, overriding the environment and any
	  value for DEFAULT_PATH_VALUE.  Based on a suggestion from
	  Lonnie Abelbeck <lonnie@abelbeck.com>

				   2/18
				   ----
shell.c
	- maybe_make_restricted: clear the hash table before making the PATH
	  variable read-only by calling stupidly_hack_special_variables.
	  Suggestion from Lonnie Abelbeck <lonnie@abelbeck.com>

subst.c
	- expand_string_for_pat: change expansion of WORD in ${param[%[%]][#[#]]word}
	  to use this new function, initially identical to
	  expand_string_for_rhs
	- getpattern: use expand_string_for_pat to expand the pattern

				   2/19
				   ----
subst.c
	- expand_string_for_rhs: now that this is only used to expand the RHS
	  of the various non-pattern ${paramOPword} expansions, set
	  expand_no_split_dollar_star depending on whether or not the entire
	  brace expansion is going to be subjected to word splitting: if it's
	  quoted or if IFS is set but null, we will not be splitting so we set
	  this to 1 and let $* expand to separate fields separated by a space.
	  This was heavily debated back in October 2014 and resulted in Posix
	  interp 888. Reported by Martijn Dekker <martijn@inlv.org>

				   2/20
				   ----
subst.c
	- expand_string_for_rhs: now takes `op' (brace expansion operator) as
	  an additional argument; changed call in parameter_brace_expand_rhs
	- expand_string_for_rhs: make sure to set expand_no_split_dollar_star
	  if `op' is `=', since we are supposed to preserve the assignment
	  statement expansion semantics on the RHS of ${param=word}

jobs.c
	- bgp_delindex: make sure to set ps->pid to NO_PID so we more
	  effectively remove it from the hash table. It shouldn't matter as
	  long as nothing in pidstat_table points to it, but better to be safe
	- bgp_delete,bgp_search: generalize previous collision detection to
	  loop detection: abort search if we are going to go back to the
	  first index we tried

				   2/21
				   ----
lib/readline/vi_mode.c
	- rl_vi_bword: if we're trying to move backward to non-whitespace
	  in a line that begins with whitespace, make sure we don't move
	  point to 0 and test memory locations before the start of the
	  buffer. Report and fix from Jason Hood <jadoxa@yahoo.com.au>

lib/readline/display.c
	- expand_prompt: if _rl_screenwith == 0, call rl_reset_screen_size to
	  initialize it. If it's still 0 after that, guess that the screen
	  width is 80 and use that to guess how many screen lines the prompt
	  consumes

lib/readline/readline.c
	- readline_internal_setup: if in emacs editing mode, and we are
	  showing the editing mode in the prompt, call _rl_reset_prompt() to
	  make sure that the updated setting of _rl_show_mode_in_prompt
	  (presumably set in an inputrc file) is reflected in the redisplay
	  performed by rl_callback_newline via readline_internal_setup.
	  Fix from Jason Hood <jadoxa@yahoo.com.au>

				   2/22
				   ----
builtins/complete.def
	- print_one_completion,print_compopts: make sure to display the
	  `nosort' and `noquote' options if they've been set for a particular
	  compspec.  Fix from Grisha Levit <grishalevit@gmail.com>

builtins/read.def
	- read_builtin: if -e is supplied, read needs to free rlbuf before
	  returning, since it uses discard_unwind_frame at that point. Bug
	  and fix from ZhangXiao <xiao.zhang@windriver.com>

execute_cmd.c
	- execute_for_command: when using a nameref as the for loop control
	  variable, make sure we check for readonly namerefs and make sure
	  that we force bind_variable to enforce restrictions on nameref
	  assignments. Fix from Grisha Levit <grishalevit@gmail.com>

				   2/23
				   ----
general.c
	- make_absolute: convert deprecated cygwin_conv_to_full_posix_path
	  to cygwin_conv_path (CCP_WIN_A_TO_POSIX, ...)

{shell,variables}.c,config-top.h
	- modify change from 2/17: rename STATIC_PATH_VALUE to RBASH_STATIC_PATH_VALUE;
	  don't use it in shell_initialize; set PATH to it just before
	  imposing restricted shell restrictions

				   2/24
				   ----
subst.c
	- expand_string_for_rhs: revert change from 2/19 concerning setting
	  expand_no_split_dollar_star so we are consistent with the Posix
	  examples. This anticipates Martijn Dekker initiating an austin
	  group discussion about this case

				   2/25
				   ----
pcomplete.c
	- gen_shell_function_matches: if COMPREPLY is an associative array,
	  don't coerce it to an indexed array, which will fail to produce any
	  matches anyway.  Report from Grisha Levit <grishalevit@gmail.com>
	- bind_comp_words: if COMP_WORDS exists as a nameref variable, ignore
	  the nameref attribute. Report from Grisha Levit
	  <grishalevit@gmail.com>

subst.c
	- parameter_brace_expand: if expand_no_split_dollar_star is set, make
	  sure chk_atstar treats ${var[*]} as quoted by passing Q_DOUBLE_QUOTES
	  as the second argument.  Fixes differing treatment of $* and ${v[*]}
	  reported by Grisha Levit <grishalevit@gmail.com>, because otherwise
	  *contains_dollar_at gets set to 1 and the word is inappropriately
	  split

				    3/1
				    ---
subst.c
	- expand_word_list_internal: if a variable assignment fails (e.g., due
	  to a readonly variable) in a non-interactive posix mode shell, don't
	  abort the shell if the assignment is being performed by the command
	  builtin, even if it's something like `command eval v=1'.  Fixes
	  RedHat bug https://bugzilla.redhat.com/show_bug.cgi?id=1389838
	  (reported by Denys Vlasenko)

				    3/3
				    ---
builtins/shopt.def
	- set_compatibility_level: make sure that changing the compatibility
	  level sets or modifies BASH_COMPAT. Fixes bug reported by
	  Stephane Chazelas <stephane.chazelas@gmail.com>

lib/glob/smatch.c
	- is_cclass: broke into two functions: is_valid_cclass and cclass_test,
	  for future expansion. No functionality change

lib/glob/sm_loop.c
	- BRACKMATCH: when testing a character against a character class name,
	  use the unfolded (original) character, since we're not performing a
	  comparison. This is what glibc does.  Fixes bug reported by
	  LukÃ¡Å¡ BaÅinka <lukas.barinka@boxtrap.net>

				    3/4
				    ---
doc/{bash.1,bashref.texi}
	- note that the arguments to -eq and the rest of the arithmetic
	  operators are evaluated as expressions when using [[.  Report from
	  Rob la Lau <rob@ohreally.nl>


				    3/7
				    ---
lib/readline/display.c
	- update_line: completely rewrote the code that handles line wrapping
	  in the presence of multibyte/double-width characters; punts to a
	  dumb update in cases where the number of screen positions doesn't
	  match
	- update_line: in one case, where we are deleting characters from the
	  line, if we are writing a non-space into the last screen character
	  position, note that we are no longer using a space as a placeholder
	  for a line wrap where there is a multi-width character that won't
	  fit on the screen line (wrapped_line[current_line+1] = 0)

				   3/10
				   ----
lib/readline/readline.c
	- bind_arrow_keys_internal: add default key bindings for control-
	  arrow keys, suggested by Per Bothner <per@bothner.com>

				   3/13
				   ----
doc/{bash.1,bashref.texi}
	- clarify the prompt strings the undergo expansion (PS0, PS1, PS2, and
	  PS4) before being displayed.  Based on a report from Grisha Levit
	  <grishalevit@gmail.com>

				   3/14
				   ----
input.c
	- bufstream_ungetc: return EOF if being asked to unget a character to
	  a NULL buffer
	- buffered_getchar: check buffered_fd is valid and buffers[buffered_fd]
	  is non-NULL before trying to dereference. Fixes bug reported by
	  floyd <floyd@floyd.ch>

execute_cmd.c
	- execute_null_command: if we fork to execute the command, the subshell
	  is not interactive
	- execute_null_command: for safety's sake, if a redirection attached
	  to a null command affects fd 0 or the fd the shell is reading for
	  input, and the redirection can potentially change or close that file
	  descriptor, force a fork so the redirection is done in a subshell

				   3/15
				   ----
lib/readline/display.c
	- update_line: if we have to output some bytes, and we are outputting
	  the prompt string, make sure we correct _rl_last_c_pos if we are
	  at the wrap offset -- what if all of the characters in the prompt
	  are invisible, so the visible length is 0?  Fixes display bug
	  reported by Grisha Levit <grishalevit@gmail.com>

execute_cmd.c
	- undo_partial_redirects: new function, performs redirections specified
	  in redirection_undo_list and disposes of them. Intended to be used
	  to unwind redirections performed before a redirection error
	- dispose_partial_redirects: new function, disposes of
	  redirection_undo_list and nulls the list
	- execute_command_internal: use undo_partial_redirects

execute_cmd.h
	- undo_partial_redirects: extern declaration
	- dispose_partial_redirects: extern declaration

subst.c
	- exp_jump_to_top_level: if we are throwing an expansion error while
	  expanding a redirection (expanding_redir != 0), undo any undoable
	  redirections by calling undo_partial_redirects() so we don't leave
	  any in place

variables.c
	- initialize_shell_variables: if SHELLOPTS is in the environment,
	  unset the readonly attribute on any existing variable with that
	  name. It may have been created by processing a -o option on the
	  command line.  Fixes issue reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   3/16
				   ----
lib/readline/histfile.c
	- read_history_range: short-circuit and do nothing if the history file
	  is of 0 size
	- read_history_range: make sure the buffer is zero-terminated so the
	  timestamp tests work right for history files of 1 character.  Report
	  and recommended fix from Denis Martinez <denis.martinez@gmx.com>

lib/readline/complete.c
	- compute_lcd_of_matches: when trying to compute the common prefix
	  of a set of matches while performing case-insensitive completion
	  matching, don't sort the match list unless rl_sort_completion_matches
	  is non-zero.  Fixes problem reported by Roee Bar <roee@arista.com>

				   3/18
				   ----
subst.c
	- extract_dollar_brace_string: handle process substitution embedded in
	  a ${...} expansion in the same way as command substitution.  Reported
	  by D630 <d630@posteo.net>

parse.y
	- LEX_GTLT: new flag, set by parse_matched_pair when a `<' or '>' is
	  read
	- parse_matched_pair: handle an embedded process substitution like an
	  embedded command substitution if we are parsing an array index or
	  a dollar-brace expansion.  Reported by D630 <d630@posteo.net>

				   3/21
				   ----
subst.h
	- ASS_NOEVAL, ASS_NOLONGJMP: new values for assignments, used by
	  make_variable_value

variables.c
	- make_variable_value: ASS_NOEVAL: if this is set, don't attempt
	  arithmetic evaluation or case modification, just produce the value
	  (still honor ASS_APPEND)
	- make_variable_value: ASS_NOLONGJMP: don't longjmp back to top_level
	  if arithmetic evaluation fails due to a syntax error
	- bind_variable_internal: make sure aflags is passed to all calls to
	  make_variable_value
	- push_temp_var: add ASS_NOLONGJMP to the flags passed to
	  bind_variable_internal.  Fixes bug reported by D630 <d630@posteo.net>

bashline.c
	- bash_execute_unix_command: don't bother to attempt optimization by
	  checking whether the call to parse_and_execute changes $READLINE_LINE;
	  it can be defeated by the new code that optimizes appends to string
	  variables. Bug reported by Grisha Levit <grishalevit@gmail.com>

				   3/22
				   ----
subst.c
	- expand_string_for_rhs: re-apply change from 2/19 based on discussion
	  on the austin-group mailing list about how unquoted ${var-$*}
	  expands when IFS is null.  Originally reported by Martijn Dekker
	  <martijn@inlv.org>

				   3/25
				   ----
parse.y
	- read_token_word: if we read a WORD immediately after a CASE, FOR, or
	  SELECT, increment `expecting_in_token' to note that we're going to
	  be reading IN as the next non-newline token
	- special_case_tokens: if we're expecting an IN (expecting_in_token > 0)
	  and we have an "in", return IN and decrement expecting_in_token. This
	  is a better implementation of Posix grammar rule 6 than the previous
	  code in that function (which is still there for posterity, but should
	  eventually be removed).  Fixes bug reported by Torka Noda
	  <kanito.tasoga@gmail.com>

subst.c
	- string_list_pos_params: if the expansion is not quoted, and IFS is
	  null, return a string containing the quoted positional parameters
	  separated by spaces.  Callers know what to do with the string
	- parameter_brace_substring,parameter_brace_remove_pattern,
	  parameter_brace_transform,parameter_brace_patsub,parameter_brace_casemod:
	  for the VT_POSPARMS case, after calling the operator-specific
	  expansion function, which eventually calls string_list_pos_params,
	  leave the returned string alone, since it's already quoted properly
	- parameter_brace_expand: after calling the above functions to perform
	  expansions, if the expansion is being performed on an unquoted $*
	  when IFS is null, set the W_SPLITSPACE flag in the return WORD_DESC
	  so that splitting on spaces is performed on the already-quoted word.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>

				   3/28
				   ----
subst.c
	- process_substitute: change so the subshell doesn't inherit the 'v'
	  option, like command substitution now does (as of bash-4.4).
	  Suggested by Grisha Levit <grishalevit@gmail.com>

				   3/30
				   ----
subst.c
	- parameter_brace_casemod: now takes a pflags parameter, like
	  parameter_brace_patsub; changed callers
	- parameter_brace_transform: now takes a pflags parameter, like
	  parameter_brace_patsub; changed callers
	- pos_params_pat_subst,pos_params_modcase: if mflags indicates we're
	  on the rhs of an assignment statement and not going to perform
	  word splitting, we're expanding $*, and $IFS is null, make sure
	  string_list_pos_params treats the expansion as double-quoted, so
	  the positional parameters will be concatenated.  Fixes bug reported
	  by Grisha Levit <grishalevit@gmail.com>

				   3/31
				   ----
doc/{bash.1,bashref.texi}
	- add notes to the description of pipelines emphasizing that each
	  element of a pipeline is executed in a subshell, referring to the
	  description of a command execution environment, and that the
	  lastpipe option can modify that behavior. From a discussion with
	  Jean Delvare <jdelvare@suse.de>

				    4/1
				    ---
subst.c
	- expand_word_internal: set had_quoted_null to note for later if we
	  expand '', "", or "$x" when x is unset
	- expand_word_internal: if we expand "$param" (or "${param}") and we
	  come back with a single word with the W_HAVEQUOTEDNULL flag set,
	  make sure we set had_quoted_null to remember it for later. In this
	  case, if we already have seen a quoted null and we expanded $@ in
	  this (sub)string expansion, we don't want to do any of the special
	  $@ handling. In particular, we don't want to set *expanded_something,
	  because that will result in word splitting and quoted null removal.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>
	- parameter_brace_patsub: when expanding ${*/pat/sub} in the case
	  where ifs_is_null != 0 and (pflags & PF_NOSPLIT2) (meaning we aren't
	  going to be doing word splitting), pass MATCH_ASSIGNRHS so we do
	  the right thing in this case. Part of a set of cases inspired by
	  Grisha Levit <grishalevit@gmail.com>
	- param_expand: case '*': if we are on the rhs of an assignment
	  (PF_ASSIGNRHS) and ifs is unset, and $1 == " ", we need to make sure
	  string_list_dollar_at gets called with Q_DOUBLE_QUOTES so it quotes
	  the positional parameters before joining them into a string with
	  string_list_internal.  Otherwise, that first space gets removed by
	  the implicit word splitting that gets performed.  Reported by
	  Grisha Levit <grishalevit@gmail.com>

array.c
	- array_patsub,array_modcase: handle ${A[*]} identically to $* when
	  not quoted and IFS is null (separate with spaces).  Makes things
	  like ${A[*]/x/y} behave the same as ${*/x/y} when IFS is null

subst.c
	- parameter_brace_patsub,parameter_brace_casemod: if expanding ${A[*]}
	  when the match is on the rhs of an assignment statement (PF_ASSIGNRHS)
	  and ifs is null, make sure the match is performed as if it were
	  quoted
	- parameter_brace_substring: now takes a PFLAGS argument
	- parameter_brace_substring: if expanding $* in a context where we
	  don't want to do word splitting (expand_no_split_dollar_star &&
	  PF_NOSPLIT2), make sure we expand $* as if it were quoted
	- parameter_brace_substring: if expanding an unquoted $* on the rhs of
	  an assignment statement when IFS is null, make sure we expand the $*
	  as if it were quoted

				    4/4
				    ---
doc/{bash.1,bashref.texi}
	- read: document that a delim argument of '' terminates each line when
	  a NUL character appears

				    4/5
				    ---
subst.c
	- parameter_brace_expand_word: handle case where unquoted $@ is
	  expanded in a context where word splitting is not performed (PF_NOSPLIT2)
	  and IFS is not equal to the standard value
	- param_expand: handle case where unquoted $@ is expanded in a context
	  where word splitting is not performed (PF_NOSPLIT2) and IFS is not
	  equal to the standard value.  Fixes bug with IFS == $1 when expanding
	  unquoted $@ reported by Grisha Levit <grishalevit@gmail.com>

				    4/7
				    ---
subst.c
	- pos_params_pat_subst: if MATCH_ASSIGNRHS is set, don't expand $*
	  as quoted unless expand_no_split_dollar_star is also set. Fixes
	  expansion bug reported on 4/4 by Grisha Levit <grishalevit@gmail.com>
	- parameter_brace_transform: if we transform unquoted A[@] or A[*]
	  when IFS is null, don't quote the result of array_transform in the
	  same way we don't quote the result of parameter_list_transform,
	  since it will come back quoted.  Fixes bug reported by
	  Grisha Levit <grishalevit@gmail.com>
	- list_transform: if we transform unquoted $* or ${a[*]} when IFS is
	  null and expand_no_split_dollar_star is non-zero, call
	  string_list_pos_params with Q_DOUBLE_QUOTES to inhibit splitting.
	  We do this in all cases except @Q, which is inconsistent but more
	  intuitive.
	  Fixes bug reported by Grisha Levit <grishalevit@gmail.com>

				    4/8
				    ---
builtins/read.def
	- read_mbchar: if unbuffered == 2, we are running read -N and need to
	  use zreadn to read the rest of the multibyte char, since the
	  previous call to zreadn may have buffered characters.  Fixes bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

pathexp.h
	- QGLOB_CTLESC: new flag for quote_string_for_globbing: means to turn
	  CTLESC CTLESC (quoted CTLESC that's usually removed as part of
	  word splitting or quote removal) into CTLESC

pathexp.c
	- quote_string_for_globbing: if QGLOB_CTLESC is present in flags,
	  turn CTLESC CTLESC into CTLESC, even if the first CTLESC is preceded
	  by a backslash. Callers can't do this because the remaining CTLESC
	  will be treated as a quoting character and turned into a backslash

execute_cmd.c
	- execute_case_command: if the pattern is not quoted, make sure to tell
	  quote_string_for_globbing to turn CTLESC CTLESC into CTLESC by
	  passing QGLOB_CTLESC.  Fixes bug reported 4/2 by Martijn Dekker
	  <martijn@inlv.org>

				    4/9
				    ---
subst.c
	- string_transform: after calling ansiexpand for the `E' transformation,
	  need to call dequote_escapes because ansiexpand assumes it is being
	  called by the parser and arranges for ansicstr to quote CTLESC and
	  CTLNUL with CTLESC.  Reported by Grisha Levit <grishalevit@gmail.com>

variables.c
	- mk_env_string: when exporting functions, run them through
	  dequote_escapes because any strings containing CTLESC or CTLNUL are
	  still quoted with CTLESC.  Reported by Grisha Levit
	  <grishalevit@gmail.com>

subst.[ch]
	- quote_escapes,dequote_escapes: now take const char * argument

execute_cmd.c
	- execute_intern_function: if the function name contains CTLESC, run
	  it through dequote_escapes just in case it got CTLESC quoting
	  CTLESC or CTLNUL from the parser

				   4/11
				   ----
eval.c
	- reader_loop: make sure PS0 is expanded and displayed before
	  incrementing the command number

parse.y
	- prompt_history_number:  function to make history number as reported
	  by \!, or posix mode !!, be the same index that the (possibly multi-
	  line) command will be stored with. The history library increments
	  history_offset as soon as a new line is entered, and it's up to the
	  history code to store the second and subsequent lines of a command
	  in the same history entry.  If we are expanding PS0 or PS4, or
	  a ${var@P} expansion, we're already past the history entry no
	  matter what.  Inspired by patch from Grisha Levit
	  <grishalevit@gmail.com>
	- decode_prompt_string: call prompt_history_number
	- decode_prompt_string: if expanding PS4 or ${var@P}, make the
	  command number the same as reported by PS0/PS1/PS2

				   4/12
				   ----
support/Makefile.in
	- clean: remove man2html.o as part of this production instead of
	  waiting until `distclean'. Reported by chrlis <chrlis@sbrella.com>

subst.c
	- string_list_pos_params: if we are expanding $* in a context where
	  IFS is null and expand_no_split_dollar_star is set (no word
	  splitting), use string_list_dollar_star to force the positional
	  parameters to be joined without first separating them into a list
	  and attempting to join them later.  Fixes problem with constructs
	  like ${var=${*:1}}, pointed out by Grisha Levit
	  <grishalevit@gmail.com>. This undoes change to @Q from 4/7, so
	  list_transform change reverted

				   4/19
				   ----
builtins.h
	- added BUILTINS_H include guard

examples/loadables/Makefile.in
	- install loadables.h as sample include file, along with Makefile.inc

				   4/23
				   ----
bashline.c
	- maybe_make_readline_line: don't try to do anything if the passed
	  NEW_LINE is NULL.  Report from Jaren Stangret <sirjaren@gmail.com>,
	  fix from Eduardo Bustamante <dualbus@gmail.com>

				   4/24
				   ----
parse.y
	- xparse_dolparen: if the current token (the last thing read_token
	  returned to yylex) is shell_eof_token, assume that it is the new
	  bison lookahead token and clear it. Fixes bug reported by
	  Werner Fink <werner@suse.de>

				   4/25
				   ----
doc/{bash.1,bashref.texi}
	- cmdhist: clarify that this option only has an effect if history is
	  enabled. Suggested by Matthew Braun <matthew@powerplug.com>

				   4/26
				   ----
jobs.c
	- wait_for: if a non-interactive shell with job control enabled (set -m)
	  detects that a foreground job died due to SIGINT, act as if the shell
	  also received the SIGINT. Prompted by an austin-group-l discussion
	- waitchld: run SIGCHLD trap for each child exited even if job control
	  is not enabled when in Posix mode. Prompted by an austin-group-l
	  discussion

				   4/27
				   ----
lib/readline/histfile.c
	- read_history_range: if the history file is empty, free the history
	  filename before returning. Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/bind.c
	- rl_parse_and_bind: make sure there is something, even if it's a
	  quoted empty string, before the `:' in a key binding.  Report from
	  Eduardo Bustamante <dualbus@gmail.com>
	- rl_parse_and_bind: if the right side of a key binding starts with a
	  quote, make sure there's a matching close quote before treating it
	  as a macro definition
	- rl_translate_keyseq: if a key sequence ends with \C- or \M- (or
	  \C-\M-) make sure we break out of the loop if moving to the character
	  to be translated is a NUL. Old code did this only in the \C-\M-
	  case. Report from Eduardo Bustamante <dualbus@gmail.com>

				   4/28
				   ----
lib/glob/sm_loop.c
	- GMATCH: implement a clever technique from glibc that avoids
	  backtracking past a `*' if we've already chosen to use it and need
	  matches beyond it.  Look at https://research.swtch.com/glob for a
	  longer explanation. This results in a significant speedup for globs
	  with multiple instances of `*', especially with more than 4.

				    5/2
				    ---
lib/readline/bind.c
	- rl_translate_keyseq: make sure a trailing backslash in the key
	  sequence is preserved. Report from Eduardo Bustamante
	  <dualbus@gmail.com>

				    5/3
				    ---
builtins/builtin.def
	- builtin_builtin: make sure to set  this_shell_builtin to the builtin
	  command being executed, overwriting `builtin'. Leave
	  last_shell_builtin alone.  Fixes bug reported by Luiz Angelo Daros
	  de Luca <luizluca@gmail.com>

jobs.c
	- waitchld: modify change of 4/26 to run SIGCHLD traps even if job
	  control is not enabled

lib/readline/misc.c
	- rl_get_previous_history: if we didn't find a previous history entry
	  to use, call rl_maybe_unsave_line before returning because we
	  aren't going to use the saved line, and it has the same undo list
	  as rl_undo_list.  Fixes fuzzing bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>
	- rl_get_{next,previous}_history: if there is no history list, don't
	  bother doing anything

				    5/4
				    ---
expr.c
	- popexp: if we error out due to stack underflow, make sure to zero out
	  expression and lasttp; they may contain undefined values we don't
	  want evalerror to print
	- expr_unwind: handle expr_depth decrementing below zero
	- evalexp: restore the old value of evalbuf even if we error and
	  longjmp; we may have called evalexp recursively
	- evalerror: make sure expression is non-NULL before trying to print it.
	  These fix fuzzing bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>, happens only in cases where we don't longjmp on
	  a fatal expansion error

				    5/5
				    ---
parse.y
	- read_token_word: when checking for a word that's a target of a
	  redirection, we can potentially call valid_array_reference, which
	  can end up calling the parser recursively. If it does that, we
	  need to make sure that yylval.word doesn't change, so we set it back
	  to the_word. Fixes another fuzzing bug

parse.y
	- arith_for_command: make syntax errors in the arithmetic for command
	  (signaled by make_arith_for_command returning NULL) more like
	  language syntax errors by calling YYERROR. Avoids complicated
	  attempts at error recovery and dealing with NULL returns from
	  command productions. Pointed out by Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/kill.c
	- _rl_copy_to_kill_ring: make sure the current slot in the kill ring
	  has something in it, even if the last command was a kill, before
	  trying to modify it. Another fuzzing bug

				    5/6
				    ---
builtins/read.def
	- read_builtin: if we see a backslash when not in raw mode (not -r),
	  only back up `i' when we read the next character if we know we added
	  a CTLESC the last time through the loop (skip_ctlesc == 0),
	  especially if i == 0. Another fuzzing bug from Eduardo Bustamante
	  <dualbus@gmail.com>

				    5/8
				    ---
builtins/read.def
	- read_mbchar: handle zreadn/zreadc/zread returning EOF in the middle
	  of an incomplete multibyte sequence.  Fixes another fuzzing bug
	- read_builtin: use mb_cur_max instead of constant 4 when deciding
	  whether the next character can exceed the number of bytes available
	  in input_string

lib/readline/input.c
	- MinGW: include <conio.h> before <io.h>. Fix from Eli Zaretskii
	  <eliz@gnu.org>

builtins/read.def
	- read_builtin: if we get input from readline, we need to get the
	  remainder of a multibyte character from rlbuf instead of calling
	  read_mbchar. Bug reported by Eduardo Bustamante <dualbus@gmail.com>

				    5/9
				    ---
parse.y
	- token_is_assignment: use the allocated buffer approach in all cases,
	  not just if we're not using bash malloc. This avoids the assignment
	  to t[i+1] writing beyond the end of the allocated token if
	  i == token_buffer_size - 1. Another fuzzing bug
	- xparse_dolparen: if parse_string returns < 0, we clear out the
	  current shell_input_line before performing a longjmp, since we're
	  abandoning parsing of this command.  This is consistent with how
	  the parser resynchronizes after other syntax errors
	- GRAMMAR: add 'error yacc_EOF' production to handle a syntax error
	  that's immediately followed by an EOF after resynchronization.
	  Fixes another fuzzing bug

				   5/10
				   ----
lib/readline/text.c
	- _rl_set_mark_at_pos: don't let the mark be set to a position < 0.
	  Fixes a fuzzing bug
	- rl_exchange_point_and_mark: don't do anything if the mark is already
	  less than 0

				   5/12
				   ----
lib/readline/rlmbutil.h
	- wchar_t: make sure this is defined as int if multibyte characters
	  aren't supported

lib/readline/text.c
	- _rl_change_case: don't force use of ascii toupper and tolower if
	  isascii returns true; it's not defined to work on characters outside
	  the 0..255 (really 0..127) range.  Bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

				   5/14
				   ----
lib/readline/text.c
	- rl_change_case: handle case where the old and new characters (after
	  the case change) are not the same number of bytes. Pointed out in
	  http://lists.gnu.org/archive/html/bug-bash/2015-01/msg00091.html

lib/readline/display.c
	- expand_prompt: use `ret' as first parameter to _rl_find_prev_mbchar
	  since that needs the base of the array. Bug from fuzzing reported by
	  Eduardo Bustamante <dualbus@gmail.com>

				   5/15
				   ----
execute_cmd.c
	- execute_simple_command, execute_arith_command, execute_cond_command,
	  execute_arith_for_command: adjust the line number when executing a
	  function interactively so that the first command in the function is
	  line 1, not line 0, as Posix requires.  Reported by Robert Elz
	  <kre@bmunnari.OZ.AU>
	- execute_simple_command, execute_arith_command, execute_cond_command,
	  execute_arith_for_command: ony adjust the line number when executing
	  a function interactively if we are not sourcing a file
	  (sourcelevel == 0), so this is consistent everywhere we adjust the
	  line number

				   5/16
				   ----
bashline.c
	- bash_directory_completion_hook: when calling split_at_delims to see
	  whether a ${ or $( is closed, use the right value for `start' relative
	  to the substring beginning at `$'.  Bug from fuzzing reported by
	  Eduardo Bustamante <dualbus@gmail.com>

expr.c
	- expassign: if the call to expcond generates a syntax error in a
	  context when the shell won't longjmp (like when evaluating $PS1),
	  it will end up NULL and we need to catch it before calling strlen.
	  Bug from fuzzing reported by Eduardo Bustamante <dualbus@gmail.com>

examples/bash-completion/
	- new place to include a current or recent version of the
	  bash-completion package

				   5/19
				   ----
lib/readline/display.c
	- CHECK_INV_LBREAKS: new versions for multibyte and single-byte chars,
	  so the multibyte version can check and increase the size of
	  line_state_invisible->wbsize and line_state_invisible->wrapped_line,
	  callers who call CHECK_INV_LBREAKS must update
	  wrapped_line[newlines] when in HANDLE_MULTIBYTE mode. Fuzzing bug
	  reported by Eduardo Bustamante <dualbus@gmail.com>

				   5/24
				   ----
lib/readline/search.c
	- _rl_nsearch_callback,noninc_search: handle _rl_search_getchar
	  returning -1 (EOF or read error) by aborting the search.
	  Fuzzing bug reported by Eduardo Bustamante <dualbus@gmail.com>

				   5/25
				   ----
variables.c
	- localvar_inherit: new variable, controlled by shopt localvar_inherit
	  option
	- make_local_variable: if localvar_inherit is set, the new local
	  variable inherits a previous scope's variable's value, attributes
	  (except nameref), and dynamic variable information. If a local
	  variable inherits a value, the local is not invisible

builtins/shopt.def
	- localvar_inherit: new option

doc/{bash.1,bashref.texi}
	- localvar_inherit: document new shopt option

				   5/29
				   ----
lib/readline/readline.c
	- _rl_subseq_result: only return -1 and back up the chain if we are
	  dealing with a result (r) that's already < 0 and we are at the end
	  of a multi-key sequence. Otherwise, a failing readline command (e.g.,
	  delete-char at the end of a line) could cause this code to be
	  executed.  Report from Nuzhna Pomoshch <nuzhna_pomoshch@yahoo.com>

lib/readline/histfile.c
	- read_history_range: if the file isn't a regular file, return an
	  error. Bug report from Eduardo Bustamante <dualbus@gmail.com>,
	  relaying from IRC

				   5/30
				   ----
variables.c
	- set_pwd: if in Posix mode, and PWD appears in initial environment as
	  an absolute pathname to the current directory, set PWD to the result
	  of canonicalizing the environment value, or to the physical path if
	  canonicalization fails. From a suggestion by Eduardo Bustamante
	  <dualbus@gmail.com>

				   5/31
				   ----
builtins/read.def
	- read_builtin: if -n or -N option is supplied with a 0 argument,
	  don't attempt to read any characters; bail out right away. Reported
	  by Eduardo Bustamante <dualbus@gmail.com>, relaying from IRC

				    6/3
				    ---
config.h.in
	- HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC: add define, used by stat-time.h
	  to construct a timespec from struct stat. Report and fix from
	  Siteshwar Vashisht <svashisht@redhat.com>

variables.h
	- att_regenerate: new internal variable attribute: if set, regenerate
	  dynamic variable's value when it's exported and we are creating the
	  export environment

variables.c
	- init_dynamic_variables: LINENO, EPOCHSECONDS, EPOCHREALTIME: set
	  internal regenerate attribute for these dynamic variables
	- make_env_array_from_var_list: if a dynamic variable has the
	  regenerate attribute set, call the dynamic value function to generate
	  an updated value before placing it in the environment.  From a report
	  about exporting LINENO from Robert Elz <kre@bmunnari.OZ.AU>

				    6/4
				    ---
lib/glob/sm_loop.c
	- BRACKMATCH: at the matched: label, make sure we get the bracket
	  character we're looking for (char class, collating symbol. etc.)
	  before we decrement the count of braces we're looking for. Eventually
	  we could do something about badly-formed bracket expressions

				    6/7
				    ---
lib/readline/histlib.h
	- strchr: only declare if  __STDC__ is not defined, since we already
	  include <string.h>.  Report from Chi-Hsuan Yen <yan12125@gmail.com>

				    6/9
				    ---
lib/readline/display.c
	- update_line: when wrapping lines with multibyte chars at the end of
	  the new line being wrapped, make sure we copy the NULL byte in old
	  when moving the contents of old around. Fuzzing bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

lib/readline/mbutil.c
	- _rl_get_char_len: use MB_CUR_MAX in the call to mbrlen; there's no
	  need to look at the rest of the string when we're just interested in
	  the length of a single character

				   6/12
				   ----
jobs.c
	- wait_for: when waiting for the next child to exit (ANY_PID), make
	  sure to restore the old SIGINT handler before returning.  Fixes
	  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864649

				   6/14
				   ----
lib/readline/display.c
	- expand_prompt: make sure `ret' is NULL-terminated before calling
	  _rl_prev_mbchar_internal, since that calls strlen, which requires
	  the passed string to be NULL-terminated. Another fuzzing bug.

				   6/15
				   ----
lib/readline/isearch.c
	- _rl_isearch_fini: use rl_replace_line instead of strcpy so rl_end
	  gets set right
	- _rl_isearch_fini: after restoring rl_point, call _rl_fix_point so
	  we don't set rl_point > rl_end. Fixes a fuzzing bug

lib/readline/mbutil.c
	- _rl_find_next_mbchar_internal: if _rl_adjust_point returns < 0,
	  just punt, treat the value as a byte, and advance point by 1

lib/readline/util.c
	- rl_tilde_expand: rearrange code in the whitespace loop so that
	  `start' gets tested first and we don't try to dereference
	  rl_line_buffer[-1]. Another fuzzing bug from dualbus@gmail.com

bashline.c
	- bash_dequote_filename: make sure that pointers that are used as
	  indices into sh_syntaxtab are cast to unsigned char first, to
	  avoid problems with signed chars > 128. Fixes a fuzzing bug.

lib/readline/kill.c
	- _rl_copy_to_kill_ring: when reallocating the kill ring, make sure to
	  allocate one more than the max number of kills so the loop that
	  copies the kill ring entries down runs right (and to mirror the
	  initial allocation). Fixes a fuzzing bug.

lib/readline/isearch.c
	- _rl_isearch_dispatch: make sure that cxt->sline_index never goes < 0
	  even when searching a line in reverse. Fixes a fuzzing bug

				   6/16
				   ----
parse.y
	- xparse_dolparen: short-circuit immediately if passed a empty string

lib/readline/display.c
	- update_line: when wrapping multibyte characters, make sure we deal
	  with WCWIDTH returning -1. Fixes a fuzzing bug

				   6/17
				   ----
execute_cmd.c
	- execute_coproc: make sure `invert' is set before trying to use it
	  when returning failure on invalid coproc name.  Report and fix from
	  Eduardo Bustamante <dualbus@gmail.com>
	- execute_command_internal: make sure execute_coproc sets
	  last_command_exit_value if it returns failure, so an invalid name
	  can set $? = 1.  Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/display.c
	- update_line: make sure all references to `wrapped_line' are wrapped
	  with #ifdef HANDLE_MULTIBYTE.  Report and fix from Eduardo Bustamante
	  <dualbus@gmail.com>

lib/readline/vi_mode.c
	- _rl_vi_change_char: don't use rl_point++ when you mean to move
	  forward a character; use _rl_vi_append_forward to account for
	  multibyte characters and take vi end of line handling into account
	- _rl_vi_last_replacement: now an array of chars whether we are
	  using multibyte chars or not. If we're not, the character we read
	  to use as the replacement is saved as the first element of the array
	- rl_vi_change_char,_rl_vi_callback_change_char: changes to deal with
	  _rl_vi_last_replacement being an array.  Fixes bug reported by
	  Eduardo Bustamante <dualbus@gmail.com>

lib/readline/mbutil.c
	- _rl_get_char_len: look at at most MB_CUR_MAX characters, but maybe
	  fewer if the length of the string is less

builtins/bind.def
	- unbind_keyseq: new function for the -r option; checks whether the
	  key sequence is actually bound before trying to bind it to NULL.
	  Partial fix for https://savannah.gnu.org/support/?109329

parse.y
	- augment `error yacc_EOF' production to call YYABORT in non-interactive
	  shells or calls to parse_and_execute (eval, command substitution,
	  etc.) Fixes bug reported by Martijn Dekker <martijn@inlv.org>

				   6/19
				   ----
bashline.c
	- edit_and_execute_command: don't add rl_line_buffer to the history
	  list if it's empty; consistent with how other code treats an empty
	  line

execute_cmd.c
	- execute_builtin: make sure to preserve the temporary env across the
	  execution of the `read' builtin or `fc' builtin if HISTORY is
	  defined, in case `read -e' calls edit-and-execute-command.  Should
	  have no side effects. Reported by Eduardo Bustamante
	  <dualbus@gmail.com>

general.c
	- line_isblank: new function: returns true if passed string is composed
	  entirely of blanks

general.h
	- line_isblank: new extern declaration

parse.y
	- history_delimiting_chars: return "" for a blank line, since there's
	  nothing to delimit with `;'

				   6/21
				   ----
jobs.c
	- wait_for: make sure to call restore_sigint_handler before returning
	  if we return out of the loop due to no children. Report from
	  Eduardo Bustamante <dualbus@gmail.com>

subst.c
	- expand_word_internal: if split_on_spaces is set, and the word is
	  unquoted, and IFS is null, split the results of the previous steps
	  on $' \t\n' instead of just ' '. This relies on the previous steps
	  quoting the portions of the word that should not be split.  Fixes
	  bug reported by Kevin Brodsky <corax26@gmail.com>

expr.c
	- evalexp: after running expr_unwind, make sure we reset expr_depth
	  to 0 for the next call
	- expr_streval: if after a call to get_array_value (which can call
	  the expression evaluator recursively) we discover that expr_depth
	  is less than it was before we called it, we assume there has been
	  some kind of error and an expr_unwind, so we treat it as an
	  error and either longjmp back to the expression top level or return
	  0 immediately. Fixes bug reported by Eduardo Bustamante
	  <dualbus@gmail.com>

				   6/23
				   ----
doc/{bash.1,bashref.texi}
	- add text noting that $* and ${array[*]} (unquoted) can also expand
	  to multiple words

				   6/29
				   ----
general.[ch]
	- default_columns: new function, returns the value of COLUMNS, or
	  refreshes it if check_window_size is set and COLUMNS is unset. By
	  default, it returns 80

execute_cmd.c
	- select_query: use default_columns() instead of fetching value of
	  COLUMNS directly

builtins/help.def
	- show_builtin_command_help: use default_columns() instead of fetching
	  value of COLUMNS directly

				   6/30
				   ----
builtins/read.def
	- read_builtin: call QUIT during the read loop, just in case we get a
	  signal we should act on that didn't cause read to be interrupted.
	  Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1466737
	- read_builtin: if -n or -N is supplied with a 0 argument, try a zero-
	  length read to detect errors and return failure if that read returns
	  a value < 0. Suggested by dualbus@gmail.com

				    7/4
				    ---
bashhist.c
	- maybe_add_history: keep track of whether the current line is a shell
	  comment, even if we're not adding it because it's in a multi-line
	  command, so we use appropriate delimiters between it and any
	  subsequent lines. Fixes bug reported by Grisha Levit
	  <grishalevit@gmail.com> back on 2/28/2017

bashline.c
	- operate_and_get_next: if given an explicit argument, use that to
	  choose which line in the history to use.

lib/readline/doc/rluser.texi,doc/bash.1
	- operate-and-get-next: document new effect of explicit numeric arg

lib/readline/complete.c
	- fnprint: make sure print_len is initialized before using it on
	  systems without multibyte character support.  Report and fix from
	  Juan Manuel Guerrero <juan.guerrero@gmx.de>

				    7/6
				    ---
builtins/printf.def
	- PRETURN,printf_builtin: check variable returned by bind_printf_variable,
	  return failure if that indicates we can't perform an assignment
	  because the variable is marked readonly or noassign. Fixes bug
	  reported by Arnaud Gaillard <arnaud.mgaillard@gmail.com>

				    7/7
				    ---
lib/readline/text.c
	- rl_quoted_insert: new feature: a negative argument means to insert
	  the next -COUNT characters using quoted-insert. Original feature
	  from Jason Hood <jadoxa@yahoo.com.au>. Still needs work on
	  redisplay
	- _rl_insert_next_callback: implement support for negative arguments
	  similar to rl_quoted_insert: we just insert one at a time and keep
	  increasing the count until it hits 0

lib/readline/misc.c
	- _rl_arg_callback: if the return value from _rl_arg_dispatch indicates
	  we should keep reading a numeric argument, update the message with
	  the new arg value

				    7/8
				    ---
lib/readline/signals.c
	- _rl_handle_signal: make sure all uses of any of the job control
	  signals are protected by a check for SIGTSTP being defined.  Report
	  from Juan Manuel Guerrero <juan.guerrero@gmx.de>

				   7/11
				   ----
lib/readline/vi_mode.c
	- rl_vi_replace: when making the new keymap for vi replacement mode,
	  make sure that ANYOTHERKEY is set correctly, otherwise some input
	  will cause _rl_dispatch to return -2 to the top level.  Fixes fuzzing
	  bug reported by Ben Wong <benjamin.a.wong@gmail.com>

				   7/19
				   ----
builtins/read.def
	- struct ttsave: make the attrs member a struct, not a pointer, to force
	  a structure copy that will survive a longjmp to another context.
	  Leaving it as a pointer to a local struct is not portable

				   9/10
				   ----
execute_cmd.c
	- execute_builtin: make sure that we set up the unwind-protect for
	  pop_scope (temporary_env is non-zero) so that the temporary env
	  is propagated to the current environment only for special builtins
	  (source/eval/unset) not run by the command builtin
	  (flags & CMD_COMMAND_BUILTIN == 0).  Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				   9/17
				   ----
builtins/printf.def
	- asciicode: don't use mblen to check whether or not a character is a
	  valid multibyte character; use mbtowc right away and then inspect
	  the return value.  Fixes bug reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>

				   9/27
				   ----
{jobs,subst}.h
	- move declaration of last_command_subst_pid to subst.h, since it's
	  declared in subst.c and doesn't depend on job control. Reported by
	  Martijn Dekker <martijn@inlv.org>

builtins/read.def,variables.c
	- fixed a couple of problems (READLINE, ARRAY_VARS) that prevented
	  the minimal config from building

				   10/1
				   ----
parse.y
	- special_case_tokens: if we are returning DO in a case where the last
	  two tokens read are `FOR' and `WORD' make sure we decrement
	  expecting_in_token.  Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>

				   10/4
				   ----
subst.c
	- expand_string_for_rhs: now takes an additional PFLAGS argument from
	  its caller (one so far); passes that through to call_expand_word_internal
	  as W_ASSIGNRHS. Fixes bug reported by Martijn Dekker
	  <martijn@inlv.org>
	- expand_string_for_rhs: expanding b in ${a[:]=b} is now done as if
	  b were the rhs of an assignment statement. This means that splitting
	  isn't done, but tilde expansion is performed as if the statement
	  were `a=b'. Fixes splitting bug with $* reported by Martijn Dekker
	  <martijn@inlv.org>

command.h
	- W_NOASSNTILDE: new word flag, means to not perform tilde expansion
	  following a `:' even if the word has the W_ASSIGNRHS flag enabled

subst.c
	- expand_word_internal: if we see a `:' with the W_NOASSNTILDE flag
	  set, just add the character and inhibit any subsequent tilde
	  expansion. Currently not set anywhere, but it could be set in
	  expand_string_for_rhs to satisfy its peculiar semantics

				   10/6
				   ----
lib/sh/casemod.c
	- sh_modcase: convert even single-byte wide characters to wide upper
	  or lowercase equivalents to accommodate locales where single-byte
	  characters have multibyte upper and lower case conversions. Bug
	  reported by Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/7
				   ----
doc/{bash.1,bashref.texi}
	- slight changes to the description of command_not_found_handle to
	  clarify that it's executed in a separate execution environment,
	  just like if the command was found. Reported by Martijn Dekker
	  <martijn@inlv.org>

				   10/8
				   ----
lib/readline/doc/{history.3,hstech.texi}
	- history_get: clarify the range of valid values for the OFFSET
	  argument. From a report by Kevin Ryde <user42_kevin@yahoo.com.au>

				   10/21
				   -----
subst.c
	- expand_string_for_rhs: set W_NOASSNTILDE if the operator is `='
	  for backwards compatibility with bash-4.4

shell.c
	- main: set positional parameters before running the startup files,
	  so the startup files can inspect $@.  Often-requested feature,
	  most recently from Stephane Chazelas <stephane.chazelas@gmail.com>

				   10/27
				   -----
doc/{bash.1,bashref.texi}
	- Arrays: add some clarifying language to make it clear that array
	  references that don't use the ${a[s]} syntax are subject to
	  globbing when passed as arguments to commands such as unset, and
	  should be quoted for safety. Change prompted by a report from
	  Eli Barzilay <eli@barzilay.org>

parse.y
	- parse_comsub: make sure we don't run off the end of the `ret'
	  buffer when checking for the here doc delimiter.  Report from
	  Jakub Wilk <jwilk@jwilk.net>, the result of a fuzzing test. Pointer
	  to place for the fix from Eduardo Bustamante <dualbus@gmail.com>

				   10/30
				   -----
builtins/pushd.def
	- get_directory_stack: make sure the current directory (element 0 of
	  the stack) is passed to polite_directory_format under the same
	  conditions as the rest of the stack entries (flags & 1). Otherwise
	  something like `cd ${DIRSTACK[0]}' will fail. Fixes bug reported
	  by Steve Jones <sjml@slohj.org>

builtins/declare.def
	- declare_internal: when checking for a `[' to see whether or not this
	  is an array variable declaration (declare -a foo[12]), make sure
	  we don't do the check if we're just dealing with shell functions.
	  Bug and pointer to fix from PJ Eby <pje@telecommunity.com>

				   11/1
				   ----
parse.y
	- parse_comsub: if we read a four-character word followed by a break
	  character, and that word is not one of the reserved words, set
	  lex_rwlen to 0 since we are no longer in a reserved word. It only
	  hurts if another break character immediately follows, so that test
	  succeeds again. Turn off the RESWDOK flag only if it's not a shell
	  metacharacter, too. Fixes bug reported by Kjetil Torgrim Homme
	  <kjetilho@scribus.ms.redpill-linpro.com>

				   11/3
				   ----
lib/readline/isearch.c
	- _rl_isearch_dispatch: if we are searching in reverse order, let
	  sline_index go to -1 to avoid searching the same line twice. It
	  gets reset right after that, so there's no danger of indexing into
	  the history line with a negative index.

				   11/7
				   ----
execute_cmd.c
	- time_command: only restore command->flags if CODE indicates we didn't
	  perform a longjmp back to top_level. If we did, `command' has already
	  been freed. Fixes bug reported on savannah by 
	  ukuvbu oibws <xyzdr4gon333@googlemail.com>
	  https://savannah.gnu.org/support/?109403

				   11/10
				   -----
lib/sh/unicode.c
	- u32cconv: make sure to initialize localconv to -1 (error) in case
	  we switch from a utf-8 locale to something else and call
	  iconv_close. Report from Egmont Koblinger <egmont@gmail.com>; fix
	  from Eduardo Bustamante <dualbus@gmail.com>

				   11/16
				   -----
subst.c
	- parse_comsub: istring_index should be a size_t to avoid integer
	  overflow when allocating large pieces of memory. Report and fix
	  from Siteshwar Vashisht <svashisht@redhat.com>, originally based on
	  http://lists.gnu.org/archive/html/bug-bash/2017-11/msg00047.html

				   11/24
				   -----
lib/readline/bind.c
	- rl_empty_keymap: new public function, returns non-zero if there are
	  no keys bound in the keymap passed as an argument

lib/readline/readline.h
	- rl_empty_keymap: new public extern declaration

lib/readline/doc/rltech.texi
	- rl_empty_keymap: document new function

lib/readline/bind.c
	- rl_generic_bind: keep track of the previous keymap and previous
	  index in a multi-key key sequence so we can remove an empty terminal
	  keymap and remove a previous override to ANYOTHERKEY. Right now,
	  this only works for one previous keymap level. Inspired by a report
	  from Clark Wang <dearvoid@gmail.com>

				   11/25
				   -----
lib/readline/display.c
	- _rl_update_final: make sure that computing the length of the visible
	  bottom line (botline_length) takes any invisible characters in the
	  prompt into account (woff). This value is used as part of the check
	  whether or not we want to remove the line-wrapping indicator on
	  terminals like xterm
	- _rl_update_final: when removing the line-wrapping indicator on xterm,
	  make sure we take invisible characters in the prompt (woff) into
	  account when computing the character in the rightmost physical
	  screen position. Fixes cosmetic line-wrapping issue reported by
	  Egmont Koblinger <egmont@gmail.com>

				   11/27
				   -----
lib/sh/ufuncs.c
	- fsleep: if using select to implement sleep, use restart after
	  a signal interrupts the select and handle pending signals. If
	  pselect is available, use that instead and block SIGCHLD while
	  pselect is executing.
	  Fixes report from Thiruvadi Rajaraman <trajaraman@mvista.com>

				   11/28
				   -----
lib/readline/signals.c
	- rl_check_signals: new public function: a wrapper for RL_CHECK_SIGNALS
	  that can be used by applications that install a wrapper for
	  rl_getc (rl_getc_function) so they can respond to signals that
	  arrive while waiting for input in the same way as rl_getc. The app
	  can use rl_pending_signal() to get the most recently-received
	  signal. From a discussion about Gnuplot initiated by
	  Rin Okuyama <rokuyama@rk.phys.keio.ac.jp>

lib/readline/readline.h
	- rl_check_signals: new extern declaration

lib/readline/doc/rltech.texi
	- rl_check_signals: document new public function

variables.c
	- set_pwd: test for and force an inherited OLDPWD to be a directory
	  if OLDPWD_CHECK_DIRECTORY is defined in config-top.h (it is by
	  default). Issue raised by Mikulas Patocka <mikulas@twibright.com>

config-top.h
	- OLDPWD_CHECK_DIRECTORY: new define, defined to 1 by default

				   11/29
				   -----
Makefile.in
	- pathexp.o: add dependencies on libintl.h.  Reported by
	  Ross Burton <ross@burtonini.com>

				   12/1
				   ----
lib/sh/ufuncs.c
	- fsleep: add blocking and releasing SIGCHLD using sigprocmask
	  around call to select(2) even if pselect(2) is not available

				   12/3
				   ----
execute_cmd.c
	- coproc_setstatus: new utility function, take a pointer to a coproc
	  and a status and mark the coproc as dead and having been reaped
	  with that status. Used by child processes who want to invalidate
	  the coproc's pid

				   12/5
				   ----
subst.c
	- process_substitute: instead of just having a flag to denote that a
	  file descriptor is connected to a process substitution, store the
	  pid of the child process (still needs work)
	- find_procsub_child,set_procsub_status,reap_procsubs: utility
	  functions to allow the job control code to detect that a process
	  substitution child has died and deallocate the file descriptors
	  or pathname

subst.h
	- find_procsub_child,set_procsub_status,reap_procsubs: extern
	  declarations

nojobs.c
	- set_pid_status: if we are reaping a process substitution, call
	  set_procsub_status to record the fact

jobs.c
	- waitchld: if we are reaping a process substitution, call
	  set_procsub_status to record the fact. Doesn't really do anything
	  yet

				   12/6
				   ----
execute_cmd.c
	- execute_command: don't call unlink_fifo_list if we're in the
	  middle of executing a list of commands (executing_list != 0).
	  Partial fix for bug reported by Stephane Chazelas
	  <stephane.chazelas@gmail.com>
	- execute_simple_command: don't close process substitution file
	  descriptors in the parent after forking children in a pipeline;
	  defer until pipeline completes, since parent may have inherited
	  fds from a calling scope (e.g., via `.'). EXPERIMENTAL
	- execute_disk_command: don't close process substitution file
	  descriptors in the parent after forking the child. EXPERIMENTAL

				   12/7
				   ----
doc/bash.1,lib/readline/doc/{readline.3,rluser.texi}
	- show-mode-in-prompt: clarify that this must be enabled before the
	  vi and emacs mode strings are prefixed to the prompt.  Report from
	  Rob Foehl <rwf@loonybin.net>

				   12/8
				   ----
execute_cmd.c
	- execute_coproc: don't warn about an existing coproc if the write and
	  read file descriptors are unusable (-1), as they will be after a
	  call to coproc_closeall in a subshell. Fixes spurious warning
	  reported by Tobias Hoffmann <lfile-list@thax.hardliners.org>

jobs.c
	- bgp_resize: avoid overflow when calculating the new size if the
	  child process limit is something ridiculously large. Report and
	  fix from Natanael Copa <ncopa@alpinelinux.org>

execute_cmd.c
	- execute_builtin_or_function: if we return via the return builtin, we
	  don't get a chance to free the saved fifo list, so add an unwind-
	  protect to make sure it happens. Part of fix for leak reported by
	  Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>
	- execute_command_internal: if we unwind via the return builtin (e.g.,
	  we execute a function which then returns via the return builtin to
	  a previous function), we don't free the saved fifo list, so add an
	  unwind-protect to make sure the free happens. Rest of fix for leak
	  reported by Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>

subst.c
	- add_fifo_list: for the FIFO case (no /dev/fd), make sure we
	  initialize the new members of the fifo list after xrealloc

				   12/9
				   ----
subst.c
	- dev_fd_list: now a list of type `pid_t' so we can store process
	  associated with the pipe fd into the right element; change all
	  necessary functions (copy_fifo_list, add_fifo_list)
	- process_substitute: store pid of child process into the right
	  index in dev_fd_list after opening the pipe. Process ID of -1 means
	  process has been reaped and fd needs to be closed (or FIFO needs to
	  be unlinked); value of 0 means slot is unused

jobs.c
	- wait_for_background_pids: call reap_procsubs to make sure we clean
	  up all reaped process substitutions before trying to wait for
	  everything (still needs work)

tests/{run-procsub,procsub.{tests,right}}
	- new file, tests of process substitution that have failed in the past

				   12/10
				   -----
jobs.c
	- wait_for_background_pids: warn if one of the jobs is stopped

subst.c
	- wait_procsubs: new function, call wait_for for every "live" process
	  substitution

jobs.c
	- wait_for_background_pids: call wait_procsubs to reap any living
	  process subsitutions

				   12/13
				   -----
lib/readline/bind.c
	- parser_if: add support for testing the readline version, using the
	  full set of arithmetic comparison operators (and supporting both
	  = and ==), using version numbers of the form major[.[minor]]

				   12/14
				   -----
subst.[ch]
	- string_list_dollar_star: now takes QUOTED and PFLAGS arguments like
	  string_list_dollar_at, changed all callers. Not used yet.

				   12/16
				   -----
subst.c
	- param_expand: broke out cases of expanding unquoted (quoted == 0)
	  $* on the rhs of an assignment statement (pflags & PF_ASSIGNRHS)
	  with various values of IFS (unset, null, set to non-null value) to
	  capture the expansion subtleties. From a report back on 11/24 by
	  Martijn Dekker <martijn@inlv.org>

				   12/17
				   -----
array.h
	- set_element_value: new define, sets array element AE to VALUE

variables.c
	- set_pipestatus_array: use set_element_value where appropriate

				   12/18
				   -----
subst.c
	- parameter_brace_find_indir: when expanding the indirect parameter
	  to find the eventual variable name, we don't perform word splitting.
	  Make sure this does the right thing for * and @.  Fixes bug
	  reported by isabella parakiss <izaberina@gmail.com>

				   12/19
				   -----
doc/{bash.1,bashref.texi}
	- indirect expansion: make sure to note that the value of the indirect
	  variable does not undergo word splitting as one of its expansions,
	  as in fix from 12/18

				   12/22
				   -----
subst.c
	- parameter_brace_expand_rhs: make sure the value this function returns
	  when OP is `=' is quoted appropriately, as the callers expect. More
	  changes from Posix interp 221. Fixes report from Martijn Dekker
	  <martijn@inlv.org>

variables.c
	- assign_hashcmd: if running in a restricted shell, make sure the
	  target of the hash assignment can be found via a $PATH search, to
	  prevent users assigning commands to the hash table they would not
	  ordinarily have access to. Fixes issue raised by Drew Parker
	  <andrew.s.parker2@gmail.com>

builtins/hash.def
	- hash_builtin: if running in a restricted shell, make sure the
	  pathname target of `hash -p' can be found via a $PATH search, to
	  prevent users assigning commands to the hash table they would not
	  ordinarily have access to.

				   12/27
				   -----
array.c,arrayfunc.c,...
	- many changes to clean up unused variables and functions. From a
	  report from Siteshwar Vashisht <svashisht@redhat.com>

				   12/28
				   -----
lib/readline/terminal.c
	- _rl_term_clrscroll: save the `E3' termcap capability, which clears
	  the scrollback buffer where supported. Unused right now

lib/readline/rlprivate.h
	- _rl_term_clrscroll: extern declaration

lib/readline/bind.c
	- parser_if: added simple variable comparison capability. Allowable
	  operators are `=', `==', and `!='; boolean variables must be
	  compared to either `on' or `off'; variable names must be separated
	  from the operator by whitespace

doc/bash.1,lib/readline/doc/{rluser.texi,readline.3}
	- document new `if variable comparison value' construct

				 1/2/2018
				 --------
lib/glob/sm_loop.c
	- EXTMATCH: when matching against !(patlist), if a filename beginning
	  with a `.' does not match any of the patterns in patlist, don't
	  return it as a match if leading dots need to be matched explicitly
	  (flags & FNM_PERIOD). Report from Eric Cook <llua@gmx.com>

				    1/3
				    ---
variables.[ch]
	- bind_function_def: takes an additional flags argument. If FLAGS&1,
	  overwrite any existing function_def hash table entry; if FLAGS==0,
	  leave any existing function_def alone.

make_cmd.c
	- make_function_def: call bind_function_def with flags == 0

execute_cmd.c
	- execute_intern_function: call bind_function_def with flags == 1 so
	  we have function_def information that's correct for where the
	  function is defined, not just where it's last parsed. Fixes report
	  from Bruno Vasselle <bruno.vasselle@laposte.net>; final piece of
	  fix from 12/15/2011

				    1/4
				    ---
subst.c
	- param_expand: deal with string_list_dollar_star returning NULL.
	  Fixes bug reported by Martijn Dekker <martijn@inlv.org>

builtins/history.def
	- history_builtin: enabled code that performs range deletion

				    1/5
				    ---
subst.c
	- do_assignment_internal: if performing a compound assignment, make
	  sure to pass ASS_CHKLOCAL flag to do_compound_assignment if the
	  assignment word has the W_CHKLOCAL flag set
	- do_compound_assignment: honor ASS_CHKLOCAL flag and check for an
	  existing local variable before creating or modifying a global
	  variable

builtins/declare.def
	- declare_internal: new (undocumented so far) option: -G. Means to
	  act on global variables (create, modify) if no local variable is
	  found with the specified name
	- declare_find_variable: new declare-specific wrapper functon for
	  declare builtin; obeys -g and -G options in one place
	- declare_internal: if no variable is found after following any nameref
	  chain, look up the variable using declare_find_variable to honor the
	  -G option. XXX - so far, this is the only place that function is used

subst.c
	- shell_expand_word_list: before calling make_internal_declare, add
	  'G' to the options list if W_CHKLOCAL is set in the word's flags.
	  This makes builtins like `readonly' that modify local variables in
	  a function behave the same for scalar and array variables

				   1/11
				   ----
parse.y
	- shell_getc: move code that decides whether to append a space to an
	  alias expansion here from mk_alexpansion, so we can inhibit adding
	  a space if we're currently parsing a single or double quoted string

				   1/12
				   ----

parse.y
	- clear_string_list_expander: take a pointer to an alias that's about
	  to be freed and make sure there aren't any pointers to it in the
	  list of pushed strings. If there are, zero it out in the pushed
	  string list to avoid referencing freed memory in pop_string()

alias.c
	- free_alias_data: if an alias being freed is currently being expanded,
	  call clear_string_list_expander to remove references to it from the
	  list of pushed strings

				   1/14
				   ----
pcomplib.c
	- progcomp_search: add code to look up an alias for the CMD argument
	  and return the completions for the first word of that alias if one
	  is found. Just a start at completing aliases, a much-requested
	  feature

pcomplete.h
	- COPT_LASTUSER: last flag value used by user-settable completion
	  options
	- PCOMP_RETRYFAIL, PCOMP_NOTFOUND: new #defines, possible return values
	  from programmable_completions in FOUNDP argument. Moved RETRYFAIL
	  define here from pcomplete.c to avoid collisions with user-settable
	  option values (COPT_*)

				   1/15
				   ----
pcomplete.c
	- programmable_completions: if we don't find any completions for a
	  command, and RETRY is 0, see if the command is a defined alias,
	  expand it, and try to expand the first word of the value as a
	  command, and find any programmable completions for it. Here right
	  now, could be moved to attempt_shell_completion later if we need
	  to do more analysis of the expanded line. We'll see how it works
	  in practice. (Disabled for now.)

				   1/16
				   ----
parse.y
	- grammar: when timing the null command, make sure to turn off the
	  flags in parser_state (PST_REDIRLIST) that make_simple_command sets
	  when given a NULL second argument, since it assumes that it's going
	  to turn those off when it gets the next word of the simple command
	  (which it never gets in this case).  Fixes bug reported by
	  Anti RÃ¤is <antirais@gmail.com>

				   1/19
				   ----
lib/readline/rltty.c
	- prepare_terminal_settings (termios/termio): if there is a function
	  bound to the VDISCARD character in the current keymap, set VDISCARD
	  to _POSIX_VDISABLE while readline is active. From a report from
	  Rhialto <rhialto@falu.nl>

				   1/22
				   ----
builtins/history.def
	- histtime: check whether or not localtime() returns NULL, and make
	  sure we only call strftime() with a valid struct tm. This can happen
	  when the timestamps in the history file overflow a time_t. Fixes bug
	  reported by Luke Dashjr <luke@dashjr.org>

bashline.c
	- edit_and_execute_command: if we're in vi editing mode, make sure
	  we end up in insert mode after executing the commands from the
	  edited file. This seems to be what other shells do. Report from
	  Stan Marsh <gazelle@xmission.com>

				   1/26
				   ----
bashline.c
	- command_word_completion_function: match alias and shell function
	  names case-insensitively if the readline completion-ignore-case
	  variable is set. Inspired by report from <odnehel@gmail.com>

lib/readline/display.c
	- update_line: when performing a dumb update after wrapping the line
	  (usually due to printing the prompt), make sure we adjust
	  _rl_last_c_pos if there are invisible characters in prompt lines
	  other than the first (we assume those invisible characters are in
	  the last line, which is nearly always the case). We adjust by the
	  total number of invisible chars less the number of invisible chars
	  in the first prompt line. From a report in
	  https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1745273

execute_cmd.c
	- execute_command_internal: if redirections attached to a compound
	  command fail, make sure we discard the `internal_fifos' unwind-
	  protect frame after freeing the copied fifo_list and before returning

				   1/30
				   ----
lib/readline/rlprivate.h
	- BRACK_PASTE_FINI: add \r to the end of the string to avoid problems
	  with the tty driver thinking the cursor was in the wrong position.
	  Fixes issue reported by Egmont Koblinger <egmont@gmail.com>

				   1/31
				   ----
lib/sh/zread.c
	- zread,zreadintr: call check_signals() before calling read() to
	  minimize the race window between signal delivery, signal handling,
	  and a blocking read(2). Partial fix for FIFO read issue reported by
	  Oyvind Hvidsten <oyvind.hvidsten@dhampir.no>

doc/{bash.1,bashref.texi}
	- shopt: document `assoc_expand_once' shell option

				    2/1
				    ---
config-top.h
	- DONT_REPORT_SIGPIPE: define, so non-interactive shells will no
	  longer print termination messages for child processes killed by
	  SIGTERM

				    2/6
				    ---
lib/readline/text.c
	- rl_insert: don't attempt to optimize typeahead if we are only reading
	  a fixed number of characters (rl_num_chars_to_read > 0)

redir.c
	- redir_special_open: if the shell is restricted, return a
	  RESTRICTED_REDIRECT error for attempts to open /dev/tcp and /dev/udp
	  sockets.  Inspired by report from Blake Burkhart <bburky@bburky.com>
	- do_redirection_internal: if redir_open returns RESTRICTED_REDIRECT,
	  return that right away (instead of errno) so we can print a better
	  error message

				   2/11
				   ----
jobs.c
	- bgp_resize: fix problems with (pid_t) overflow when calculating new
	  size for table when js.c_childmax is near the limit of a pid_t
	  (e.g., 2**31 - 1 on a 32-bit system, or 2**63-1 on a system with
	  32-bit pid_t). Fixes hang reported by Natanael Copa
	  <ncopa@alpinelinux.org> based on his patch from 12/8.
	- bgp_resize: cap max table size for bgpids at MAX_CHILD_MAX (32768)

include/typemax.h
	- TYPE_MINIMUM, TYPE_MAXIMUM: updated definitions from coreutils-8.29,
	  silences some compiler warnings

				   2/14
				   ----
Makefile.in
	- maybe-clean: use cd and pwd -P to test whether or not two directory
	  names identical, since topdir = '.' and BUILD_DIR = full pathname
	  when you use something like `bash ./configure'. Problem reported by
	  Michael Felt <aixtools@gmail.com>

subst.c
	- split_at_delims: if SD_NOQUOTEDELIM is in the flags argument, don't
	  treat `'' and `"' as candidates for possible sequences of delimiters,
	  even if they're part of the delimiter set (the delims argument).
	  Fixes problem with completing lines like `foo --bar='quux baz' xx'
	  reported by Nick Patavalis <npat@efault.net>

				   2/15
				   ----
copy_cmd.c
	- copy_word_list: build the list in the right order, avoiding having
	  to reverse it at the end. Helps with long argument lists

shell.c
	- bind_args: build the argument list in the right order, avoiding
	  having to reverse it at the end.
	- bind_args: only call push_args to save argc and argv as BASH_ARGC
	  and BASH_ARGV if debugging mode is enabled (debugging_mode != 0).
	  Inspired by report from Ambrose Feinstein <ambrose@google.com>
	- bind_args: note that we've saved BASH_ARGC and BASH_ARGV by setting
	  bash_argv_initialized
	- shell_reinitialize: reset bash_argv_initialized back to 0 so
	  BASH_ARGV and BASH_ARGC will be recreated if we're in debugging mode

variables.c
	- save_bash_argv: new function, initializes BASH_ARGV and BASH_ARGC
	  from the saved positional parameters
	- init_bash_argv: initialize BASH_ARGV and BASH_ARGC if
	  bash_argv_initialized == 0

builtins/shopt.def
	- shopt_set_debug_mode: if we're turning on debug mode, initialize
	  BASH_ARGC and BASH_ARGV if bash_argv_initialized == 0

				   2/16
				   ----
execute_cmd.c
	- execute_function: make sure BASH_ARGV and BASH_ARGC are initialized
	  before calling push_args (and before calling remember_args)

builtins/source.def
	- source_builtin: make sure BASH_ARGV and BASH_ARGC are initialized
	  before calling push_args (and before calling remember_args)

builtins/evalfile.c
	- _evalfile: if the shell compatibility level is 44 or lower, make
	  sure BASH_ARGV and BASH_ARGC are initialized before calling
	  array_push

builtins/shopt.def
	- compat44: new shell option. This will be the last compatXX option

doc/{bash.1,bashref.texi}
	- compat44: document new shell option

				   2/21
				   ----
builtins/common.h
	- ISOPTION: check s[1] before s[2] to avoid out of bound reads. Fixes
	  bug reported by jeremy@feusi.co

input.h
	- B_SHAREDBUF: new flag for buffered input fds, indicates that this
	  fd shares its b_buffer with another fd

input.c
	- duplicate_buffered_stream: when duplicating *from* the buffer
	  corresponding to bash input, make sure the new buffer has B_SHAREDBUF
	  in the flags, because copy_buffered_stream copies pointers
	- duplicate_buffered_stream: if the buffer being copied to has the
	  B_SHAREDBUF flag set, make sure the b_buffer doesn't get freed.
	  Fixes use-after-free bug reported by jeremy@feusi.co
	- save_bash_input,close_buffered_stream: make sure a buffer with
	  B_SHAREDBUF set has its b_buffer set to NULL before calling
	  free_buffered_stream

				   2/24
				   ----
subst.c
	- parameter_brace_expand_error: add parameter saying whether or not
	  we are checking whether value is null, so we can have different
	  error messages for ${x:?} and ${x?}. Report and fix from
	  don fong <dfong@dfong.com>

				    3/5
				    ---
lib/readline/bind.c
	- _rl_read_file: instead of calling stat/open on the passed filename,
	  use open/fstat to avoid one possible filename translation and close
	  a small (benign) race condition. Report and fix from Roy Ivy
	  <roy.ivy.iii@gmail.com>

				   3/11
				   ----
variables.c
	- makunbound: if new variable localvar_unset is non-zero, mark local
	  vars in previous scopes as invisible and unset so they will show
	  up as unset until that previous scope returns (similar to how	local
	  variables in the current local scope are handled). localvar_unset
	  is currently set to 0 with no way for a script to change its value.
	  Eventually there will be an option to modify it.  From a bug-bash
	  discussion started by Nikolai Kondrashov <spbnick@gmail.com> back
	  on 2/11/2018

				   3/13
				   ----
subst.c
	- expand_word_list_internal: short-circuit and exit right away if a
	  variable assignment preceding a special builtin fails in posix mode
	- expand_word_list_internal: if a variable assignment precedes an
	  empty command name (after expansion), fix to exit right away when
	  the shell is in posix mode

				   3/15
				   ----
doc/{bash.1,bashref.texi}
	- Add text to Pathname Expansion clarifying that a slash must be
	  matched by a slash in the pattern when matching pathnames, but
	  not in other matching contexts. Suggested by <stormy1777@yahoo.com>

builtins/common.c
	- read_octal: allow octal numbers greater than 777 to accommodate
	  modes and umasks that include sticky/setuid/setgid bits. Report
	  and fix from Martijn Dekker <martijn@inlv.org>

				   3/19
				   ----
lib/readline/bind.c
	- rl_generic_bind: make sure we only assign to prevkey in the loop
	  if the key sequence index is > 0, so ic is valid. Fixes bug
	  reported by Koichi Murase <myoga.murase@gmail.com>

builtins/read.def
	- read_builtin: be slightly less aggressive checking for timeouts and
	  SIGALRM: if we successfully read a character, don't check for a
	  timeout until we store or process it. Fixes timing problem
	  reported by Rob Foehl <rwf@loonybin.net>

				   3/22
				   ----
sig.c
	- termsig_handler: add a call to exit(1) after the kill, just in case
	  there are circumstances where the SIG_DFL signal handler is
	  ignored.  Report from Andrei Vagin <avagin@gmail.com>

				   3/25
				   ----
lib/readline/bind.c
	- _rl_function_of_keyseq_internal: new internal function thta takes a
	  length parameter to accommodate NUL in the key sequence. Patch from
	  Koichi Murase <myoga.murase@gmail.com>
	- rl_function_of_keyseq_len: new application-callable function that
	  takes a length parameter; otherwise equivalent to rl_function_of_keyseq.

lib/readline/readline.h
	- rl_function_of_keyseq_len: add extern declration for new function

lib/readline/doc/rltech.texi
	- rl_function_of_keyseq_len: document new function interface

bashline.c
	- bash_execute_unix_command: use rl_function_of_keyseq_len to handle
	  key sequences with embedded NULs (\C-@). Fix from Koichi Murase
	  <myoga.murase@gmail.com>

lib/readline/bind.c
	- rl_bind_key_if_unbound,rl_bind_key_if_unbound_in_map: run the KEY
	  argument through rl_untranslate_keyseq to produce a symbolic sequence
	  that can encode \C-@.
	- rl_bind_keyseq_if_unbound_in_map: translate the key sequence in order
	  to accommodate symbolic key sequences; should be a no-op for `raw'
	  key sequences such as the arrow key seqeunces from terminfo. Change
	  from Koichi Murase <myoga.murase@gmail.com>

				    4/2
				    ---
jobs.c
	- wait_for: when setting the SIGINT signal handler to wait_sigint_handler
	  make sure we're not setting old_sigint_handler recursively, as we
	  can when running an external command in a trap we took after a
	  command exited due to SIGINT. We don't want to overwrite
	  old_sigint_handler here. Fixes bug reported by Dr. Werner Fink
	  <werner@suse.de>

execute_cmd.c
	- execute_disk_command: when there is a command_not_found_hook, make
	  sure the subshell turns off job control before running it, in case
	  it runs processes. We don't want it to manipulate process groups.
	  Fixes bug reported by ÐÐ¸ÑÐ¸Ð»Ð»Ð¾Ð² ÐÐ¸Ð¼Ð° <dk.1997-fast@yandex.ru>
	- execute_command_internal: make sure the command run by the `command'
	  builtin doesn't cause the ERR trap to be executed; wait for the
	  status to be returned by the command builtin. Fixes bug reported by
	  Martijn Dekker <martijn@inlv.org>

				    4/4
				    ---
subst.c
	- process_substitute: handle longjmp back to top_level and function
	  returns (return_catch) in the child process, like command
	  substitution, so we don't longjmp back to some arbitrary spot from
	  the `exit' or `return' builtins, or on an expansion error, like
	  the command timing code. Fixes bug reported by Basin Ilya
	  <basinilya@gmail.com>

				    4/6
				    ---
parse.y
	- read_token_word: when reading a matched pair of backquotes as part
	  of a word, treat it as quoted so the characters are read as a single
	  word, but do not let the presence of the backquote mark the word as
	  quoted. Fixes here-document delimiter bug reported by Denys Vlasenko
	  <dvlasenk@redhat.com>

				    4/7
				    ---
execute_cmd.c
	- execute_case_command: call quote_string_for_globbing with the
	  QGLOB_CTLESC flag for both quoted and unquoted words, so it will
	  remove CTLESC/CTLESC in all cases while converting other quoted
	  characters to use a preceding backslash. Bug reported by
	  Martijn Dekker <martijn@inlv.org>

				    4/9
				    ---
smatch.c
	- posix_cclass_only: helper function that checks whether a pattern has
	  only posix single-byte character classes ([:alpha:], etc.) or has
	  none at all
	- xstrmatch: if running in a multibyte locale, make sure to short-
	  circuit to the single-byte matching code only if there are no
	  unrecognized character class names, since the wide character ctype
	  functions allow locales to define their own character class names
	  (e.g., "hyphen"). Fixes issue reported by yangyajing <yyj_cqu@163.com>

				   4/10
				   ----
configure.ac,cross-build/qnx.cache
	- qnx: add a configure cache file for cross-building, treat qnx 7 like
	  qnx 6 in terms of cpp options. Fix from Brian Carnes
	  <bcarnes@google.com>

aclocal.m4
	- BASH_CHECK_DEV_STDIN: experimental change to test for /dev/stdin
	  independently of /dev/fd or /proc/self/fd. Suggested for QNX by
	  Brian Carnes <bcarnes@google.com>


				   4/11
				   ----
lib/glob/glob.c
	- glob_testdir: return -2 if DIR is a symlink, to differentiate it from
	  any other kind of non-directory file
	- glob_vector: if we have GX_ALLDIRS (globstar), we want to skip over
	  symlinks to directories, since we will pick up the real directory
	  later. Fixes incompatibility reported by Murukesh Mohanan
	  <murukesh.mohanan@gmail.com>

bashline.c
	- bash_execute_unix_command: changes to make READLINE_POINT apply to
	  characters instead of bytes when in a multibyte locale. Report and
	  fix from Koichi Murase <myoga.murase@gmail.com>

				   4/12
				   ----
builtins/evalstring.c
	- parse_and_execute_cleanup: now takes an argument which is the value
	  of running_trap at some point before parse_and_execute was called;
	  changed callers in sig.c, builtins/evalfile.c

builtins/common.h
	- parse_and_execute_cleanup: changed prototype

				   4/13
				   ----
builtins/evalstring.c
	- parse_and_execute_cleanup: if the argument holding the previous state
	  of running_trap is the same value as the current running_trap state,
	  don't call run_trap_cleanup: assume that there is a caller who will
	  take care of the cleanup after this returns. Fixes recursive trap
	  call on "eval return" reported by Martijn Dekker <martijn@inlv.org>

parse.y
	- read_a_line: if remove_quoted_newline is non-zero, indicating the
	  here-document delimiter is unquoted, we will be running the contents
	  of the here-document through word expansion and need to quote CTLESC
	  and CTLNUL in the input. Fixes bug with ^A in here document reported
	  by Jorge Alberto Baca Garcia <bacagarcia@me.com>

				   4/18
				   ----
pathexp.c
	- quote_string_for_globbing: make sure the QGLOB_CTLESC code handles
	  both CTLESC CTLESC and CTLESC CTLNUL in the same way. Fixes bug
	  reported by Martijn Dekker <martijn@inlv.org>

				   4/19
				   ----
execute_cmd.c
	- execute_command_internal: before executing any command in the current
	  shell, and before copying any existing FIFO list, call
	  reap_procsubs to unlink or close any process substitution pipes
	  associated with processes that have exited. Fixes hang in test suite
	  when trying to open a FIFO with no process having it open for
	  reading

				   4/26
				   ----
parse.y
	- read_token_word: if returning REDIR_WORD for a {id}>foo construct,
	  for example, make sure to assign the_word to yylval.word before
	  returning, in case a recursive call to the parser overwrites it
	  (e.g., when evaluating array indexes). From a message to
	  austin-group-l from Stephane Chazelas <stephane.chazelas@gmail.com>

lib/glob/sm_loop.c
	- BRACKMATCH: if we have an invalid character class in an otherwise
	  well-formed bracket expression, don't try to match each character
	  of the (invalid) class individually; just skip over the class and
	  move on.  From a message on the austin-group list from
	  Stephane Chazelas <stephane.chazelas@gmail.com>

				   4/27
				   ----
variables.c
	- push_exported_var,push_func_var,push_temp_var: make sure to set the
	  context correctly in the variable we bind in the previous (non-temp)
	  scope. Report from Martijn Dekker <martijn@inlv.org>

pathexp.c
	- unquoted_glob_pattern_p: a pattern that contains a backslash can
	  have it removed by the matching engine (since backslash is special
	  in pattern matching), so if the pattern contains a backslash, and
	  does not end in a backslash, we need to return true. Fixes bug
	  reported by Robert Elz <kre@bmunnari.OZ.AU>

lib/glob/gm_loop.c
	- INTERNAL_GLOB_PATTERN_P: same change to return TRUE for a backslash
	  that doesn't end the pattern

lib/sh/timeval.c
	- print_timeval: use locale_decpoint() instead of fixed `.' to print
	  decimal point. Bug report in austin-group email from Joerg Schilling
	  <Joerg.Schilling@fokus.fraunhofer.de>

lib/sh/clock.c
	- print_clock_t: use locale_depoint() in the same way as print_timeval

				   4/29
				   ----
subst.c
	- expand_cond_node: if special != 0, make sure to add QGLOB_CTLESC
	  to the flags passed to quote_string_for_globbing. Same issue as the
	  one with `case' fixed on 4/7, report from Martijn Dekker
	  <martijn@inlv.org>

				   4/30
				   ----
redir.c
	- do_redirection_internal: r_close_this: if the file descriptor is
	  already closed before the shell is asked to close it, make sure to
	  add an undo list redirect to make sure it stays closed. Report from
	  Martijn Dekker <martijn@inlv.org>

				    5/2
				    ---
variables.c
	- push_posix_temp_var: new function, takes the SHELL_VAR * passed as
	  an argument and uses the name and value to create a global variable
	- merge_temporary_env: if posixly_correct is set, call
	  push_posix_temp_var to create global variables, otherwise call
	  push_temp_var to preserve the old behavior. Right now, it's only
	  called when in posix mode, but that might change. This undoes the
	  change from 4/27 when in posix mode

				    5/3
				    ---
sig.c
	- struct that holds the terminating signal information has a new
	  field: whether that signal is expected to cause a core dump
	- termsig_handler: if the call to kill(2) doesn't kill the process,
	  we have a problem. If our pid is not 1, we just exit with status
	  128+sig (fake the sig exit status). If the pid is 1, we assume
	  we're in a Linux pid namespace and aren't allowed to send a signal
	  to ourselves. If we need to generate a core dump, we try to get
	  the kernel to SIGSEGV us by dereferencing location 0. If not, we
	  just exit with 128+sig. From a report and patch from Andrei Vagin
	  <avagin@virtuozzo.com>

				    5/4
				    ---
bashline.c
	- bash_execute_unix_command: make sure that parse_and_execute is called
	  with newly-allocated memory to avoid prematurely freeing the
	  command. Report and fix from Koichi Murase <myoga.murase@gmail.com>

				    5/7
				    ---
builtins/shopt.def
	- syslog_history: a shell option to control whether history is logged
	  to syslog; can be modified at runtime. Original patch from
	  Siteshwar Vashisht <svashisht@redhat.com>

config-top.h
	- SYSLOG_SHOPT: new configurable option, determines whether there is a
	  shell option to control syslogging history lines at runtime and sets
	  the default value of the option

bashline.c
	- syslog_history: new variable to control whether history lines are
	  sent to syslog; default value is the value of SYSLOG_SHOPT (or 1
	  if that's not defined)
	- bash_add_history: send history lines to syslog if syslog_history is
	  non-zero

				   5/10
				   ----

variables.c
	- push_var_context: if we are in Posix mode and manipulating the
	  temporary environment (temporary_env), implement behavior specified
	  in Posix interp 1009 and make sure that temporary assignments
	  preceding function calls modify the current environment *before*
	  the function is executed.

[bash-5.0-alpha frozen]
