diff --git a/CWRU/CWRU.chlog b/CWRU/CWRU.chlog
index bcbb6437..b716927a 100644
--- a/CWRU/CWRU.chlog
+++ b/CWRU/CWRU.chlog
@@ -9677,3 +9677,47 @@ pathexp.c
 	  any non-digits sort after all-digit names and are sorted
 	  lexicographically.
 	  Inspired by a discussion with Robert Elz <kre@munnari.oz.au>
+
+				   6/21
+				   ----
+lib/readline/text.c
+	- rl_change_case: make mlen size_t to assign the return value from
+	  wcrtomb; change the tests of < 0 to use MB_INVALIDCH.
+	  Report from Siteshwar Vashisht <svashisht@redhat.com>
+
+				   6/26
+				   ----
+trap.c
+	- run_debug_trap: give the terminal back to pipeline_pgrp only if
+	  job_control is enabled; that's the only way the trap command would
+	  have given it to a different process group
+	  Fixes bug reported by Mark March <march@systempad.cloud>
+
+				   6/27
+				   ----
+configure.ac
+	- remove support for cached files for cross-compiling; it's too hard
+	  to keep them up-to-date without access to the platforms
+
+				   6/28
+				   ----
+lib/readline/util.c
+	- _rl_audit_tty: make sure to close fd before returning on error
+
+lib/sh/casemod.c
+	- sh_modcase: use size_t variable as return value for wcrtomb; check
+	  for invalid wide char and copy all characters in the multibyte
+	  character as-is if it is
+
+lib/sh/zwrite.c
+	- zwrite: use size_t and ssize_t variables
+
+builtins/evalfile.c
+	- _evalfile: use size_t variable for return value from strlen()
+
+lib/readline/funmap.c
+	- rl_funmap_names: don't bother calling qsort if result doesn't have
+	  any entries
+
+	  All from a report by Siteshwar Vashisht <svashisht@redhat.com>
+
diff --git a/builtins/evalfile.c b/builtins/evalfile.c
index 14a8488c..9521934e 100644
--- a/builtins/evalfile.c
+++ b/builtins/evalfile.c
@@ -78,7 +78,8 @@ _evalfile (const char *filename, int flags)
 {
   volatile int old_interactive;
   procenv_t old_return_catch;
-  int return_val, fd, result, pflags, i, nnull;
+  int return_val, fd, result, pflags, nnull;
+  size_t i;
   ssize_t nr;			/* return value from read(2) */
   char *string;
   struct stat finfo;
@@ -101,19 +102,19 @@ _evalfile (const char *filename, int flags)
   do
     {
       fd = open (filename, O_RDONLY);
-      i = errno;
-      if (fd < 0 && i == EINTR)
+      result = errno;
+      if (fd < 0 && result == EINTR)
         QUIT;
-      errno = i;
+      errno = result;
     }
   while (fd < 0 && errno == EINTR && (flags & FEVAL_RETRY));
 
   if (fd < 0 || (fstat (fd, &finfo) == -1))
     {
-      i = errno;
+      result = errno;
       if (fd >= 0)
 	close (fd);
-      errno = i;
+      errno = result;
 
 file_error_and_exit:
       if (((flags & FEVAL_ENOENTOK) == 0) || errno != ENOENT)
diff --git a/builtins/printf.def b/builtins/printf.def
index 4d663225..6549e718 100644
--- a/builtins/printf.def
+++ b/builtins/printf.def
@@ -1515,8 +1515,7 @@ asciicode (void)
   register intmax_t ch;
 #if defined (HANDLE_MULTIBYTE)
   wchar_t wc;
-  size_t slen;
-  int mblength;
+  size_t slen, mblength;
 #endif
   DECLARE_MBSTATE;
 
@@ -1524,7 +1523,7 @@ asciicode (void)
   slen = strlen (garglist->word->word+1);
   wc = 0;
   mblength = mbrtowc (&wc, garglist->word->word+1, slen, &state);
-  if (mblength > 0)
+  if (MB_INVALIDCH (mblength) == 0)
     ch = wc;		/* XXX */
   else
 #endif
diff --git a/configure b/configure
index 6977651a..285b7396 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac for Bash 5.3, version 5.065.
+# From configure.ac for Bash 5.3, version 5.066.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.72 for bash 5.3-alpha.
 #
@@ -5330,30 +5330,30 @@ SIGNAMES_H=lsignames.h
 
 CROSS_COMPILE=
 if test "x$cross_compiling" = "xyes"; then
-    case "${host}" in
-    *-cygwin*)
-	cross_cache=${srcdir}/cross-build/cygwin32.cache
-	;;
-    *-msys*)
-	cross_cache=${srcdir}/cross-build/msys32.cache
-	;;
-    *-mingw*)
-	cross_cache=${srcdir}/cross-build/cygwin32.cache
-	;;
-    i[3456]86-*-beos*)
-	cross_cache=${srcdir}/cross-build/x86-beos.cache
-	;;
-    *-qnx*)
-	cross_cache=${srcdir}/cross-build/qnx.cache
-	;;
-    *)	echo "configure: cross-compiling for $host is not supported" >&2
-	;;
-    esac
-    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
-	echo "loading cross-build cache file ${cross_cache}"
-	. ${cross_cache}
-    fi
-    unset cross_cache
+#    case "${host}" in
+#    *-cygwin*)
+#	cross_cache=${srcdir}/cross-build/cygwin32.cache
+#	;;
+#    *-msys*)
+#	cross_cache=${srcdir}/cross-build/msys32.cache
+#	;;
+#    *-mingw*)
+#	cross_cache=${srcdir}/cross-build/cygwin32.cache
+#	;;
+#    i[[3456]]86-*-beos*)
+#	cross_cache=${srcdir}/cross-build/x86-beos.cache
+#	;;
+#   *-qnx*)
+#	cross_cache=${srcdir}/cross-build/qnx.cache
+#	;;
+#    *)	echo "configure: cross-compiling for $host is not supported" >&2
+#	;;
+#    esac
+#    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
+#	echo "loading cross-build cache file ${cross_cache}"
+#	. ${cross_cache}
+#    fi
+#    unset cross_cache
     SIGNAMES_O='signames.o'
     CROSS_COMPILE='-DCROSS_COMPILING'
 
diff --git a/configure.ac b/configure.ac
index fe9306f4..b556b388 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,7 +21,7 @@ dnl Process this file with autoconf to produce a configure script.
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-AC_REVISION([for Bash 5.3, version 5.065])dnl
+AC_REVISION([for Bash 5.3, version 5.066])dnl
 
 define(bashvers, 5.3)
 define(relstatus, alpha)
@@ -460,30 +460,30 @@ dnl Set SIGNAMES_H based on whether or not we're cross-compiling.
 
 CROSS_COMPILE=
 if test "x$cross_compiling" = "xyes"; then
-    case "${host}" in
-    *-cygwin*)
-	cross_cache=${srcdir}/cross-build/cygwin32.cache
-	;;
-    *-msys*)
-	cross_cache=${srcdir}/cross-build/msys32.cache
-	;;
-    *-mingw*)
-	cross_cache=${srcdir}/cross-build/cygwin32.cache
-	;;
-    i[[3456]]86-*-beos*)
-	cross_cache=${srcdir}/cross-build/x86-beos.cache
-	;;
-    *-qnx*)
-	cross_cache=${srcdir}/cross-build/qnx.cache
-	;;
-    *)	echo "configure: cross-compiling for $host is not supported" >&2
-	;;
-    esac
-    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
-	echo "loading cross-build cache file ${cross_cache}"
-	. ${cross_cache}
-    fi
-    unset cross_cache
+#    case "${host}" in
+#    *-cygwin*)
+#	cross_cache=${srcdir}/cross-build/cygwin32.cache
+#	;;
+#    *-msys*)
+#	cross_cache=${srcdir}/cross-build/msys32.cache
+#	;;
+#    *-mingw*)
+#	cross_cache=${srcdir}/cross-build/cygwin32.cache
+#	;;
+#    i[[3456]]86-*-beos*)
+#	cross_cache=${srcdir}/cross-build/x86-beos.cache
+#	;;
+#   *-qnx*)
+#	cross_cache=${srcdir}/cross-build/qnx.cache
+#	;;
+#    *)	echo "configure: cross-compiling for $host is not supported" >&2
+#	;;
+#    esac
+#    if test -n "${cross_cache}" && test -r "${cross_cache}"; then
+#	echo "loading cross-build cache file ${cross_cache}"
+#	. ${cross_cache}
+#    fi
+#    unset cross_cache
     SIGNAMES_O='signames.o'
     CROSS_COMPILE='-DCROSS_COMPILING'
     AC_SUBST(CROSS_COMPILE)
diff --git a/doc/bash.1 b/doc/bash.1
index 328a6094..c1df3754 100644
--- a/doc/bash.1
+++ b/doc/bash.1
@@ -9946,8 +9946,8 @@ any supplied field width and precision in terms of characters, not bytes.
 .PP
 Arguments to non-string format specifiers are treated as C constants,
 except that a leading plus or minus sign is allowed, and if the leading
-character is a single or double quote, the value is the ASCII value of
-the following character.
+character is a single or double quote, the value is the numeric value of
+the following character, using the current locale.
 .PP
 The \fIformat\fP is reused as necessary to consume all of the \fIarguments\fP.
 If the \fIformat\fP requires more \fIarguments\fP than are supplied, the
diff --git a/doc/bashref.texi b/doc/bashref.texi
index 26ea6d8c..2e52db8f 100644
--- a/doc/bashref.texi
+++ b/doc/bashref.texi
@@ -5091,8 +5091,8 @@ identically to the %b format specifier if it's supplied.
 
 Arguments to non-string format specifiers are treated as C language constants,
 except that a leading plus or minus sign is allowed, and if the leading
-character is a single or double quote, the value is the ASCII value of
-the following character.
+character is a single or double quote, the value is the numeric value of
+the following character, using the current locale.
 
 The @var{format} is reused as necessary to consume all of the @var{arguments}.
 If the @var{format} requires more @var{arguments} than are supplied, the
diff --git a/lib/readline/complete.c b/lib/readline/complete.c
index cae21cdb..76bc252c 100644
--- a/lib/readline/complete.c
+++ b/lib/readline/complete.c
@@ -1362,7 +1362,6 @@ compute_lcd_of_matches (char **match_list, int matches, const char *text)
   size_t si1, si2;
   size_t len1, len2;
 #if defined (HANDLE_MULTIBYTE)
-  int v;
   size_t v1, v2;
   mbstate_t ps1, ps2;
   WCHAR_T wc1, wc2;
diff --git a/lib/readline/display.c b/lib/readline/display.c
index 7fdf23bd..aff66ec3 100644
--- a/lib/readline/display.c
+++ b/lib/readline/display.c
@@ -1732,7 +1732,7 @@ update_line (char *old, char *old_face, char *new, char *new_face, int current_l
 {
   char *ofd, *ols, *oe, *nfd, *nls, *ne;
   char *ofdf, *nfdf, *olsf, *nlsf;
-  int temp, lendiff, wsatend, od, nd, twidth, o_cpos;
+  int temp, lendiff, wsatend, od, nd, o_cpos;
   int current_invis_chars;
   int col_lendiff, col_temp;
   int bytes_to_insert;
@@ -1863,7 +1863,7 @@ update_line (char *old, char *old_face, char *new, char *new_face, int current_l
 	     _rl_output_some_chars below. */
 	  if (newwidth > 0)
 	    {
-	      int count, i, j;
+	      int i, j;
 	      char *optr;
 
 	      puts_face (new, new_face, newbytes);
diff --git a/lib/readline/examples/excallback.c b/lib/readline/examples/excallback.c
index 04ecb140..e8839d26 100644
--- a/lib/readline/examples/excallback.c
+++ b/lib/readline/examples/excallback.c
@@ -19,7 +19,7 @@ My example shows how, using the alternate interface, you can
 interactively change the prompt (which is very nice imo). Also, I
 point out that you must roll your own terminal setting when using the
 alternate interface because readline depreps (using your parlance) the
-terminal while in the user callback. I try to demostrate what I mean
+terminal while in the user callback. I try to demonstrate what I mean
 with an example. I've included the program below.
 
 To compile, I just put the program in the examples directory and made
@@ -72,7 +72,7 @@ Copyright (C) 1999 Jeff Solomon
  * alternate interface. The first is the ability to interactively change the
  * prompt, which can't be done using the regular interface since rl_prompt is
  * read-only.
- * 
+ *
  * The second feature really highlights a subtle point when using the alternate
  * interface. That is, readline will not alter the terminal when inside your
  * callback handler. So let's so, your callback executes a user command that
diff --git a/lib/readline/examples/histexamp.c b/lib/readline/examples/histexamp.c
index 2e946aca..d592b7e1 100644
--- a/lib/readline/examples/histexamp.c
+++ b/lib/readline/examples/histexamp.c
@@ -110,7 +110,7 @@ main (int argc, char **argv)
 	  int which;
 	  if ((sscanf (line + 6, "%d", &which)) == 1)
 	    {
-	      HIST_ENTRY *entry = remove_history (which);
+	      HIST_ENTRY *entry = remove_history (which - history_base);
 	      if (!entry)
 		fprintf (stderr, "No such entry %d\n", which);
 	      else
diff --git a/lib/readline/examples/manexamp.c b/lib/readline/examples/manexamp.c
index c8e11d5c..ce33877f 100644
--- a/lib/readline/examples/manexamp.c
+++ b/lib/readline/examples/manexamp.c
@@ -94,16 +94,8 @@ invert_case_line (int count, int key)
 
   start = rl_point;
 
-  if (count < 0)
-    {
-      direction = -1;
-      count = -count;
-    }
-  else
-    direction = 1;
-      
   /* Find the end of the range to modify. */
-  end = start + (count * direction);
+  end = start + count;
 
   /* Force it to be within range. */
   if (end > rl_end)
@@ -111,6 +103,14 @@ invert_case_line (int count, int key)
   else if (end < 0)
     end = -1;
 
+  if (start == end)
+    return 0;
+
+  /* For positive arguments, put point after the last changed character. For
+     negative arguments, put point before the last changed character. */
+  rl_point = end;
+
+  /* Swap start and end if we are moving backwards */
   if (start > end)
     {
       int temp = start;
@@ -118,14 +118,11 @@ invert_case_line (int count, int key)
       end = temp;
     }
 
-  if (start == end)
-    return 0;
-
   /* Tell readline that we are modifying the line, so save the undo
      information. */
   rl_modifying (start, end);
 
-  for (; start != end; start += direction)
+  for (; start != end; start++)
     {
       if (_rl_uppercase_p (rl_line_buffer[start]))
 	rl_line_buffer[start] = _rl_to_lower (rl_line_buffer[start]);
@@ -133,7 +130,5 @@ invert_case_line (int count, int key)
 	rl_line_buffer[start] = _rl_to_upper (rl_line_buffer[start]);
     }
 
-  /* Move point to on top of the last character changed. */
-  rl_point = end - direction;
   return 0;
 }
diff --git a/lib/readline/funmap.c b/lib/readline/funmap.c
index 548cfb57..28af3642 100644
--- a/lib/readline/funmap.c
+++ b/lib/readline/funmap.c
@@ -265,6 +265,7 @@ rl_funmap_names (void)
       result[result_index + 1] = (char *)NULL;
     }
 
-  qsort (result, result_index, sizeof (char *), (QSFUNC *)_rl_qsort_string_compare);
+  if (result)
+    qsort (result, result_index, sizeof (char *), (QSFUNC *)_rl_qsort_string_compare);
   return (result);
 }
diff --git a/lib/readline/nls.c b/lib/readline/nls.c
index 8c027d6b..e04991da 100644
--- a/lib/readline/nls.c
+++ b/lib/readline/nls.c
@@ -107,12 +107,13 @@ static int
 utf8locale (char *lspec)
 {
   char *cp;
-  size_t len;
 
 #if HAVE_LANGINFO_CODESET
   cp = nl_langinfo (CODESET);
   return (STREQ (cp, "UTF-8") || STREQ (cp, "utf8"));
 #else
+  size_t len;
+
   cp = find_codeset (lspec, &len);
 
   if (cp == 0 || len < 4 || len > 5)
diff --git a/lib/readline/text.c b/lib/readline/text.c
index bb5655d2..e8d4f5f6 100644
--- a/lib/readline/text.c
+++ b/lib/readline/text.c
@@ -1453,8 +1453,7 @@ rl_change_case (int count, int op)
 #if defined (HANDLE_MULTIBYTE)
   WCHAR_T wc, nwc;
   char mb[MB_LEN_MAX+1];
-  int mlen;
-  size_t m;
+  size_t m, mlen;
   mbstate_t mps;
 #endif
 
@@ -1532,12 +1531,13 @@ change_singlebyte:
 
 	      memset (&ts, 0, sizeof (mbstate_t));
 	      mlen = WCRTOMB (mb, nwc, &ts);
-	      if (mlen < 0)
+	      
+	      if (MB_INVALIDCH (mlen))
 		{
 		  nwc = wc;
 		  memset (&ts, 0, sizeof (mbstate_t));
 		  mlen = WCRTOMB (mb, nwc, &ts);
-		  if (mlen < 0)		/* should not happen */
+		  if (MB_INVALIDCH (mlen))		/* should not happen */
 		    strncpy (mb, rl_line_buffer + start, mlen = m);
 		}
 	      if (mlen > 0)
diff --git a/lib/readline/util.c b/lib/readline/util.c
index 2a247034..2bcc776a 100644
--- a/lib/readline/util.c
+++ b/lib/readline/util.c
@@ -536,7 +536,10 @@ _rl_audit_tty (char *string)
   size = strlen (string) + 1;
 
   if (NLMSG_SPACE (size) > MAX_AUDIT_MESSAGE_LENGTH)
-    return;
+    {
+      close (fd);
+      return;
+    }
 
   memset (&req, 0, sizeof(req));
   req.nlh.nlmsg_len = NLMSG_SPACE (size);
diff --git a/lib/sh/casemod.c b/lib/sh/casemod.c
index 6bef4586..acf5759c 100644
--- a/lib/sh/casemod.c
+++ b/lib/sh/casemod.c
@@ -106,8 +106,7 @@ sh_modcase (const char *string, char *pat, int flags)
 #if defined (HANDLE_MULTIBYTE)
   wchar_t nwc;
   char mb[MB_LEN_MAX+1];
-  int mlen;
-  size_t m;
+  size_t m, mlen;
   mbstate_t state;
 #endif
 
@@ -249,8 +248,9 @@ singlebyte:
 	  else
 	    {
 	      mlen = wcrtomb (mb, nwc, &state);
-	      if (mlen > 0)
-		mb[mlen] = '\0';
+	      if (MB_INVALIDCH (mlen))
+		strncpy (mb, string + start, mlen = m);			
+	      mb[mlen] = '\0';
 	      /* Don't assume the same width */
 	      strncpy (ret + retind, mb, mlen);
 	      retind += mlen;
diff --git a/lib/sh/zwrite.c b/lib/sh/zwrite.c
index 54acc651..0cea7f91 100644
--- a/lib/sh/zwrite.c
+++ b/lib/sh/zwrite.c
@@ -38,7 +38,9 @@ extern int errno;
 int
 zwrite (int fd, char *buf, size_t nb)
 {
-  int n, i, nt;
+  int nt;
+  size_t n;
+  ssize_t i;
 
   for (n = nb, nt = 0;;)
     {
diff --git a/support/man2html.c b/support/man2html.c
index 097f48ee..954b9132 100644
--- a/support/man2html.c
+++ b/support/man2html.c
@@ -818,7 +818,7 @@ out_html(char *c)
 	} else if (output_possible) {
 		while (*c) {
 			outbuffer[obp++] = *c;
-			if (*c == '\n' || obp > HUGE_STR_MAX) {
+			if (*c == '\n' || obp >= HUGE_STR_MAX) {
 				outbuffer[obp] = '\0';
 				add_links(outbuffer);
 				obp = 0;
diff --git a/trap.c b/trap.c
index 9acd1973..778e330d 100644
--- a/trap.c
+++ b/trap.c
@@ -1286,7 +1286,9 @@ run_debug_trap (void)
       close_pgrp_pipe ();
       restore_pgrp_pipe (save_pipe);
 #  endif
-      if (pipeline_pgrp > 0 && ((subshell_environment & (SUBSHELL_ASYNC|SUBSHELL_PIPE)) == 0))
+      /* If the trap command gave the terminal to another process group,
+	 restore it. XXX - check running_in_background? */
+      if (job_control && pipeline_pgrp > 0 && ((subshell_environment & (SUBSHELL_ASYNC|SUBSHELL_PIPE)) == 0))
 	give_terminal_to (pipeline_pgrp, 1);
 
       notify_and_cleanup ();