From: Eric Blake <ebb9@byu.net>
Date: Tue, 14 Oct 2008 17:52:38 +0000 (-0600)
Subject: Correct previous patch.
X-Git-Tag: v2.63b~256
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=460ecbc03edaeaa637859e30838c5d7e96bfd36a;p=thirdparty%2Fautoconf.git

Correct previous patch.

* doc/autoconf.texi (Shell Functions): Bash obeys Posix, after
all.

Signed-off-by: Eric Blake <ebb9@byu.net>
---

diff --git a/ChangeLog b/ChangeLog
index 071f2a9c..8a4504c4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2008-10-14  Eric Blake  <ebb9@byu.net>
 
+	Correct previous patch.
+	* doc/autoconf.texi (Shell Functions): Bash obeys Posix, after
+	all.
+
 	Document shell function environment pitfall.
 	* doc/autoconf.texi (Shell Functions): Document bugs in bash,
 	Solaris /bin/sh.
diff --git a/doc/autoconf.texi b/doc/autoconf.texi
index dc864626..ddd0638a 100644
--- a/doc/autoconf.texi
+++ b/doc/autoconf.texi
@@ -14226,15 +14226,15 @@ and other options upon function entry and exit.  Inside a function,
 @acronym{IRIX} sh sets @samp{$0} to the function name.
 
 It is not portable to pass temporary environment variables to shell
-functions.  Solaris @command{/bin/sh} does not see the variable.  Meanwhile,
-@command{bash} 3.2 breaks the Posix rule that the assignment must not affect
-the current environment, but only when Posix compliance is requested!
+functions.  Solaris @command{/bin/sh} does not see the variable.
+Meanwhile, not all shells follow the Posix rule that the assignment must
+affect the current environment in the same manner as special built-ins.
 
 @example
 $ @kbd{/bin/sh -c 'func()@{ echo $a;@}; a=1 func; echo $a'}
 @result{}
 @result{}
-$ @kbd{bash -c 'func()@{ echo $a;@}; a=1 func; echo $a'}
+$ @kbd{ash -c 'func()@{ echo $a;@}; a=1 func; echo $a'}
 @result{}1
 @result{}
 $ @kbd{bash -c 'set -o posix; func()@{ echo $a;@}; a=1 func; echo $a'}