From 61ec62fb2757253a509b57b3e7815c1fb6d0a94b Mon Sep 17 00:00:00 2001
From: Jelmer Vernooij <jelmer@samba.org>
Date: Mon, 20 Mar 2006 15:34:01 +0000
Subject: r14583: Enable automatic dependencies only if GNU make >= 3.81 is
 present. (This used to be commit 2b22f1853306625a4c59763ef11965ac8900d4ff)

---
 source4/build/m4/check_cc.m4 | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'source4/build/m4')

diff --git a/source4/build/m4/check_cc.m4 b/source4/build/m4/check_cc.m4
index bdee2b99c3..277afc18c6 100644
--- a/source4/build/m4/check_cc.m4
+++ b/source4/build/m4/check_cc.m4
@@ -193,3 +193,34 @@ if test x"$samba_cv_HAVE_FUNCTION_MACRO" = x"yes"; then
     AC_DEFINE(HAVE_FUNCTION_MACRO,1,[Whether there is a __FUNCTION__ macro])
 fi
 
+AC_PATH_PROG(MAKE,make)
+
+AC_CACHE_CHECK([whether we have GNU make], samba_cv_gnu_make, [
+if $ac_cv_path_MAKE --version | head -1 | grep GNU 2>/dev/null >/dev/null
+then
+	samba_cv_gnu_make=yes
+else
+	samba_cv_gnu_make=no
+fi
+])
+
+GNU_MAKE=$samba_cv_gnu_make
+AC_SUBST(GNU_MAKE)
+
+if test "x$GNU_MAKE" = x"yes"; then
+	AC_CACHE_CHECK([GNU make version], samba_cv_gnu_make_version,[
+		samba_cv_gnu_make_version=`$ac_cv_path_MAKE --version | head -1 | cut -d " " -f 3 2>/dev/null`
+	])
+	GNU_MAKE_VERSION=$samba_cv_gnu_make_version
+	AC_SUBST(GNU_MAKE_VERSION)
+fi
+
+automatic_dependencies=no
+AC_MSG_CHECKING([for GNU make >= 3.81])
+if test x$GNU_MAKE = x"yes"; then
+	if $PERL -e " \$_ = '$GNU_MAKE_VERSION'; s/@<:@^\d\.@:>@.*//g; exit (\$_ < 3.81);"; then
+		automatic_dependencies=yes
+	fi
+fi
+AC_MSG_RESULT($automatic_dependencies)
+AC_SUBST(automatic_dependencies)
-- 
cgit