commit bash-20161021 snapshot

CWRU/CWRU.chlog

@@ -12004,3 +12004,12 @@ aclocal.m4
 	  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.  Suggested by Martijn Dekker <martijn@inlv.org>
+
+doc/{bash.1,bashref.texi}
+	- BASHPID: note that assignments are ignored and unsetting BASHPID
+	  causes it to lose its special properties

doc/bash.1

@@ -1453,6 +1453,14 @@ This variable is read-only.
 Expands to the process ID of the current \fBbash\fP process.
 This differs from \fB$$\fP under certain circumstances, such as subshells
 that do not require \fBbash\fP to be re-initialized.
+Assignments to
+.SM
+.B BASHPID
+have no effect.
+If
+.B BASHPID
+is unset, it loses its special properties, even if it is
+subsequently reset.
 .TP
 .B BASH_ALIASES
 An associative array variable whose members correspond to the internal

doc/bashref.texi

@@ -5480,6 +5480,10 @@ reading any startup files.  This variable is readonly.
 Expands to the process ID of the current Bash process.
 This differs from @code{$$} under certain circumstances, such as subshells
 that do not require Bash to be re-initialized.
+Assignments to @env{BASHPID} have no effect.
+If @code{BASHPID}
+is unset, it loses its special properties, even if it is
+subsequently reset.
 
 @item BASH_ALIASES
 An associative array variable whose members correspond to the internal

tests/RUN-ONE-TEST

@@ -1,4 +1,4 @@
-BUILD_DIR=/usr/local/build/bash/bash-current
+BUILD_DIR=/usr/local/build/chet/bash/bash-current
 THIS_SH=$BUILD_DIR/bash
 PATH=$PATH:$BUILD_DIR
 

variables.c

@@ -1462,7 +1462,7 @@ get_bashpid (var)
   p = itos (pid);
 
   FREE (value_cell (var));
-  VSETATTR (var, att_integer|att_readonly);
+  VSETATTR (var, att_integer);	/* XXX - was also att_readonly */
   var_setvalue (var, p);
   return (var);
 }
@@ -1767,7 +1767,7 @@ initialize_dynamic_variables ()
   VSETATTR (v, att_integer);
 
   INIT_DYNAMIC_VAR ("BASHPID", (char *)NULL, get_bashpid, null_assign);
-  VSETATTR (v, att_integer|att_readonly);
+  VSETATTR (v, att_integer);
 
 #if defined (HISTORY)
   INIT_DYNAMIC_VAR ("HISTCMD", (char *)NULL, get_histcmd, (sh_var_assign_func_t *)NULL);