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Re: [PATCH] PR35457, provide system to backport autoconf 2.60+ bugfixes
- From: Ralf Wildenhues <Ralf dot Wildenhues at gmx dot de>
- To: Paolo Bonzini <bonzini at gnu dot org>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Revital1 Eres <ERES at il dot ibm dot com>
- Date: Fri, 18 Apr 2008 12:26:02 +0200
- Subject: Re: [PATCH] PR35457, provide system to backport autoconf 2.60+ bugfixes
- References: <48086E42.3030103@gnu.org>
Hello Paolo,
* Paolo Bonzini wrote on Fri, Apr 18, 2008 at 11:47:46AM CEST:
> This patch provides a way to backport autoconf 2.60+ bugfixes, based on
> the existing confsubdir.m4 file. It then backports the fix for PR35457.
> I have not committed it yet because I have to regenerate all the
> aclocal.m4 files in gcc and src.
It would be cool if such backports are written to automatically expand
to nil if a new enough Autoconf is used. That helps upgrading (I've
been working on and off to get GCC to build with recent autotools).
Something like
m4_version_prereq([2.62], [],
[AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
[...
])
])
would be nice for extensions.m4, and here as well.
Thanks,
Ralf
> 2008-04-18 Paolo Bonzini <bonzini@gnu.org>
>
> PR bootstrap/35457
>
> * confsubdir.m4: Rename to...
> * override.m4: ... this. Make sure aclocal always picks it.
> Add more lenient precious variable check, backported from
> autoconf trunk.