From 8a2f9311a9d1e5652475568b75f9a91082c127bd Mon Sep 17 00:00:00 2001
From: Jonathan G Rennison <j.g.rennison@gmail.com>
Date: Thu, 8 Sep 2016 19:31:40 +0100
Subject: [PATCH] Include -01 in CFLAGS_BUILD when using clang.

---
 config.lib | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/config.lib b/config.lib
index 961e5eae8c..ae9b5be2c1 100644
--- a/config.lib
+++ b/config.lib
@@ -1524,8 +1524,11 @@ make_cflags_and_ldflags() {
 
 		cc_build_is_gcc=`basename "$cc_build" | grep "gcc" 2>/dev/null`
 		if [ -n "$cc_build_is_gcc" ]; then
-			# Just add -O1 to the tools needed for building.
+			# Add -O1 and fortify source to the tools needed for building, on gcc
 			CFLAGS_BUILD="$CFLAGS_BUILD -D_FORTIFY_SOURCE=2 -O1"
+		elif [ -n "`basename "$cc_build" | grep "clang" 2>/dev/null`" ]; then
+			# Add -O1 to the tools needed for building, on clang
+			CFLAGS_BUILD="$CFLAGS_BUILD -O1"
 		fi
 	fi