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std-gnu11: Support Autoconf versions < 2.64
From: |
Bruno Haible |
Subject: |
std-gnu11: Support Autoconf versions < 2.64 |
Date: |
Tue, 23 Oct 2018 00:14:50 +0200 |
User-agent: |
KMail/5.1.3 (Linux/4.4.0-137-generic; KDE/5.18.0; x86_64; ; ) |
While testing with Autoconf 2.63, I noticed this error:
$ autoconf
configure:5805: error: possibly undefined macro: _AC_DO_LIMIT
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
configure:5805: error: possibly undefined macro: AS_MESSAGE_LOG_FD
This patch fixes it.
2018-10-22 Bruno Haible <address@hidden>
std-gnu11: Support Autoconf versions < 2.64.
* m4/std-gnu11.m4 (AC_PROG_CC, AC_PROG_CXX): Use _AC_DO as fallback
when _AC_DO_LIMIT does not exist.
diff --git a/m4/std-gnu11.m4 b/m4/std-gnu11.m4
index c85ac43..bae4ed1 100644
--- a/m4/std-gnu11.m4
+++ b/m4/std-gnu11.m4
@@ -70,7 +70,7 @@ _AS_ECHO_LOG([checking for _AC_LANG compiler version])
set X $ac_compile
ac_compiler=$[2]
for ac_option in --version -v -V -qversion -version; do
- _AC_DO_LIMIT([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
+ m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option
>&AS_MESSAGE_LOG_FD])
done
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
@@ -135,7 +135,7 @@ _AS_ECHO_LOG([checking for _AC_LANG compiler version])
set X $ac_compile
ac_compiler=$[2]
for ac_option in --version -v -V -qversion; do
- _AC_DO_LIMIT([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD])
+ m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option
>&AS_MESSAGE_LOG_FD])
done
m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl
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