From f266ee7c28aa6ddf1571108a1a8a9b447ec1034c Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Tue, 7 Mar 2006 10:16:03 +0000
Subject: r13917: fix detection of the visibility support, as we don't use
 #pragma for the build don't use it for the configure test and use
 -fvisibility=hidden in CFLAGS in the configure test

metze
(This used to be commit a0c543c0d6440627da594611fbff3ef1ab0d4251)
---
 source4/build/m4/check_cc.m4 | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

(limited to 'source4')

diff --git a/source4/build/m4/check_cc.m4 b/source4/build/m4/check_cc.m4
index 72a882b7d8..0a215ef802 100644
--- a/source4/build/m4/check_cc.m4
+++ b/source4/build/m4/check_cc.m4
@@ -117,22 +117,29 @@ AC_TRY_RUN([#include "${srcdir-.}/build/tests/trivial.c"],
 #
 
 visibility_attribute=no
+VISIBILITY_CFLAGS=""
 if test x"$GCC" = x"yes" ; then
-    AX_CFLAGS_GCC_OPTION([-fvisibility=hidden], VISIBILITY_CFLAGS)
+	AX_CFLAGS_GCC_OPTION([-fvisibility=hidden], VISIBILITY_CFLAGS)
 fi
 
 if test -n "$VISIBILITY_CFLAGS"; then
 	AC_MSG_CHECKING([whether the C compiler supports the visibility attribute])
+	OLD_CFLAGS="$CFLAGS"
+
+	CFLAGS="$CFLAGS $VISIBILITY_CFLAGS"
 	AC_TRY_RUN([
-	#pragma GCC visibility push(hidden)
-	void vis_foo1(void) {}
-	__attribute__((visibility("default"))) void vis_foo2(void) {}
-	#include "${srcdir-.}/build/tests/trivial.c"
-	], [
+		void vis_foo1(void) {}
+		__attribute__((visibility("default"))) void vis_foo2(void) {}
+		#include "${srcdir-.}/build/tests/trivial.c"
+	],[
 		AC_MSG_RESULT(yes)
 		AC_DEFINE(HAVE_VISIBILITY_ATTR,1,[Whether the C compiler supports the visibility attribute])
 		visibility_attribute=yes
-	], [AC_MSG_RESULT(no);])
+	],[
+		AC_MSG_RESULT(no)
+		VISIBILITY_CFLAGS=""
+	])
+	CFLAGS="$OLD_CFLAGS"
 fi
 AC_SUBST(visibility_attribute)
 
-- 
cgit