From 8de11deb9107b0bcfc7bf3922ee7edff3dbcd73a Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Fri, 22 May 2009 00:26:30 +0200
Subject: Better checks for M4 in configure.

---
 aclocal.m4 | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'aclocal.m4')

diff --git a/aclocal.m4 b/aclocal.m4
index 584173d..f3b8953 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -145,3 +145,16 @@ if test -z "$bird_cv_sys_linux_version" ; then
 	AC_MSG_ERROR([Cannot determine kernel version])
 fi
 ])])
+
+# BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
+# copied autoconf internal _AC_PATH_PROG_FLAVOR_GNU
+m4_define([BIRD_CHECK_PROG_FLAVOR_GNU],
+[# Check for GNU $1
+case `"$1" --version 2>&1` in
+*GNU*)
+  $2;;
+m4_ifval([$3],
+[*)
+  $3;;
+])esac
+])#
-- 
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