From 05c84efdc4a59280cff64c6dbd7b0ca58a9e4aca Mon Sep 17 00:00:00 2001
From: file <file@f38db490-d61c-443f-a65b-d21fe96a405b>
Date: Sun, 4 May 2008 01:43:26 +0000
Subject: Treat warnings as errors when checking if a GCC attribute exists. We
 have to do this as GCC will just ignore the attribute and pop up a warning,
 it won't actually fail to compile.

git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@115276 f38db490-d61c-443f-a65b-d21fe96a405b
---
 acinclude.m4 | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 31688e341..b4df57451 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -3,13 +3,17 @@
 AC_DEFUN([AST_GCC_ATTRIBUTE],
 [
 AC_MSG_CHECKING(for compiler 'attribute $1' support)
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
 AC_COMPILE_IFELSE(
 	AC_LANG_PROGRAM([static int __attribute__(($1)) test(void) {}],
 			[]),
 	AC_MSG_RESULT(yes)
 	AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
 	AC_MSG_RESULT(no))
-])
+]
+CFLAGS="$saved_CFLAGS"
+)
 
 # AST_EXT_LIB_SETUP([package symbol name], [package friendly name], [package option name], [additional help text])
 
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