--- EMULib/Rules.gcc.orig	2009-12-17 07:37:54 UTC
+++ EMULib/Rules.gcc
@@ -5,11 +5,11 @@ LIBZ80	= $(BASEDIR)/Z80
 LIB6502	= $(BASEDIR)/M6502
 LIBGBZ	= $(BASEDIR)/GBZ80
 
-CXX	= g++
-CC	= gcc
+CXX	= c++
+CC	= cc
 CPP	= cpp
 SDT2GAS	= perl $(EMULIB)/Tools/sdt2gas.pl
-CFLAGS	= -O3 -pthread -I. -I.. -I$(EMULIB)
+CFLAGS += -pthread -I. -I.. -I$(EMULIB)
 DEFINES = -DZLIB
 LIBS    = -lz -lpthread