From 223fed5458a69ef76421ee5528c701e463ab60ee Mon Sep 17 00:00:00 2001
From: smatz <smatz@openttd.org>
Date: Fri, 3 Sep 2010 13:09:56 +0000
Subject: [PATCH] (svn r20723) -Fix: don't define _FORTIFY_SOURCE when not
 compiling with GCC, other compilers would likely barf on GLIBC code

---
 config.lib | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/config.lib b/config.lib
index 1afbdb9310..754058fe86 100644
--- a/config.lib
+++ b/config.lib
@@ -1262,7 +1262,13 @@ make_cflags_and_ldflags() {
 
 		# Each debug level reduces the optimization by a bit
 		if [ $enable_debug -ge 1 ]; then
-			CFLAGS="$CFLAGS -g -D_DEBUG -D_FORTIFY_SOURCE=2"
+			CFLAGS="$CFLAGS -g -D_DEBUG"
+			if basename "$cc_host" | grep "gcc" &>/dev/null; then
+				# Define only when compiling with GCC, some
+				# GLIBC versions use GNU extensions in a way
+				# that breaks build with at least ICC
+				CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
+			fi
 			if [ "$os" = "PSP" ]; then
 				CFLAGS="$CFLAGS -G0"
 			fi