[SCM] GNU Autoconf source repository branch, master, updated. v2.63-43-g460ecbc

[Eric Blake]

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- Log -----------------------------------------------------------------
commit 460ecbc03edaeaa637859e30838c5d7e96bfd36a
Author: Eric Blake <address@hidden>
Date:   Tue Oct 14 11:52:38 2008 -0600

    Correct previous patch.
    
    * doc/autoconf.texi (Shell Functions): Bash obeys Posix, after
    all.
    
    Signed-off-by: Eric Blake <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog         |    4 ++++
 doc/autoconf.texi |    8 ++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 071f2a9..8a4504c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2008-10-14  Eric Blake  <address@hidden>
 
+       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 dc86462..ddd0638 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,
address@hidden 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'}


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