On (10/07/13 10:48), Jakub Hrozek wrote:
>On Wed, Jul 10, 2013 at 10:29:35AM +0200, Lukas Slebodnik wrote:
>> On (04/07/13 15:23), Petr Spacek wrote:
>> >Hello,
>> >
>> >several warnings from autotools popped up after upgrade to Fedora 19.
>> >Attached patches should make autotools configuration more modern.
>> >
>> >-- 
>> >Petr^2 Spacek
>> 
>> >From 07caec808e394bfcbd898905e917731cb3778e68 Mon Sep 17 00:00:00 2001
>> >From: Petr Spacek <pspa...@redhat.com>
>> >Date: Thu, 4 Jul 2013 14:04:57 +0200
>> >Subject: [PATCH] Add missing ar check to configure.ac.
>> >
>> >Signed-off-by: Petr Spacek <pspa...@redhat.com>
>> >---
>> > configure.ac | 1 +
>> > 1 file changed, 1 insertion(+)
>> >
>> >diff --git a/configure.ac b/configure.ac
>> >index 
>> >222e520e0aa61bca58cff81bea672fcab04355b3..b6d66de1b862a6860226a5f9ae4a3f33842e6100
>> > 100644
>> >--- a/configure.ac
>> >+++ b/configure.ac
>> >@@ -10,6 +10,7 @@ AC_CONFIG_HEADERS([config.h])
>> > AC_DISABLE_STATIC
>> > 
>> > # Checks for programs.
>> >+AM_PROG_AR
>> > AC_PROG_CC
>> > AC_PROG_LIBTOOL
>> > 
>> >-- 
>> >1.8.3.1
>> >
>> 
>> This solution is not very portable. Automake <= 1.11 does not contain this
>> macro.
>> 
>> configure.ac:14: warning: macro `AM_PROG_AR' not found in library
>> configure.ac:14: error: possibly undefined macro: AM_PROG_AR
>>       If this token and others are legitimate, please use m4_pattern_allow.
>>       See the Autoconf documentation.
>> autoreconf: /usr/bin/autoconf failed with exit status: 1
>> 
>> Better solution will be:
>> m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
>> 
>> You can find more information about this in mail thread
>> http://lists.gnu.org/archive/html/automake/2012-05/msg00014.html
You probably did not read this page ^^^^^

>>Even better is:
>m4_pattern_allow([AM_PROG_AR])
>AM_PROG_AR

m4_pattern_allow should be used for another things.
http://www.gnu.org/software/autoconf/manual/autoconf.html#Forbidden-Patterns

LS

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