Bug 47772

Summary:	autoconf incorrectly runs 2.58 if AC_PREREQ(2.12) is in aclocal.m4
Product:	Gentoo Linux	Reporter:	Scott Smith <scott-gentoo>
Component:	[OLD] Core system	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED FIXED
Severity:	normal	CC:	caleb
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Scott Smith 2004-04-13 16:55:32 UTC

the multiversion autoconf script incorrectly extracts AC_PREREQ from aclocal.m4, (but correctly extracts it from autoconf).

Reproducible: Always
Steps to Reproduce:
1. mkdir foo
2. cd foo
3. autoconf --version
(you should see 2.13)
4. echo 'AC_PREREQ(2.12) > aclocal.m4'
5. autoconf --version
(you should see 2.58)





autoconf 2.58-r1, automake 1.8.3

Comment 1 Scott Smith 2004-04-16 15:51:15 UTC

In addition, the automake wrapper does not correctly scan configure.ac as it does configure.in when trying to determine whether to run aclocal/automake 1.5 or 1.6, and thus misses the AC_PREREQ in configure.ac.

Comment 2 Caleb Tennis (RETIRED) gentoo-dev

2004-05-27 06:22:53 UTC

So it looks to me like the fix for this is to change the ac-wrapper-3.pl to:


|| (cat_('configure.in') =~ /^\s*\[?AC_PREREQ\(\[?([^\)]{3})[^\)]*\]?\)/m ? $1 : '') gt '2.13'
|| (cat_('configure') =~ /^# Generated by Autoconf (\S+)/m ? $1 : '') gt '2.13'
|| (cat_('Makefile.in') =~ /^# Makefile\.in generated by automake (\S+)/ ? $1 : '') ge '1.6'
|| (cat_('aclocal.m4') =~ /^\s*\[?AC_PREREQ\(\[?([^\)]{3}[0-9]?)[^\)]*\]?\)/m ? $1 : '') gt '2.13'))) {


Whereas before it was "gt '2.1'"  ?

Comment 3 Caleb Tennis (RETIRED) gentoo-dev

2004-05-27 06:40:13 UTC

The above change has been committed to ac-wrapper-4 which is used in autoconf-2.59-r4.