From 669a4129af304a2ff2049dd1e63879647f386726 Mon Sep 17 00:00:00 2001
From: Joakim Gebart <joakim.gebart@eistec.se>
Date: Fri, 23 Jan 2015 19:24:55 +0100
Subject: [PATCH] Makefile.cflags: Add -fno-common by default to CFLAGS.

---
 Makefile.cflags | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Makefile.cflags b/Makefile.cflags
index eccfb6b33f..39049324d7 100644
--- a/Makefile.cflags
+++ b/Makefile.cflags
@@ -47,3 +47,6 @@ ifeq ($(LTO),yes)
   CFLAGS += ${LTOFLAGS}
   LINKFLAGS += ${LTOFLAGS}
 endif
+
+# Forbid common symbols to prevent accidental aliasing.
+CFLAGS += -fno-common