--- EMULib/Rules.gcc.orig	2013-12-20 20:52:16.000000000 +0100
+++ EMULib/Rules.gcc	2013-12-20 20:52:22.000000000 +0100
@@ -6,7 +6,7 @@
 LIBGBZ	= $(BASEDIR)/GBZ80
 PRIVATE	= $(BASEDIR)/Private
 
-CC	= gcc
+CC	?= gcc
 CPP	= cpp
 CFLAGS	= -O3 -pthread -I.. -I$(EMULIB)
 DEFINES = -DZLIB