--- Makefile.orig	2008-08-21 01:21:17.000000000 +0200
+++ Makefile	2008-08-21 07:53:03.000000000 +0200
@@ -21,7 +21,8 @@
 include Makefile.cfg
 
 export CC = gcc -pthread
-export CFLAGS += -I. -Wall -Os -ggdb -D_GNU_SOURCE -fPIC
+export OPTFLAGS = -Os -ggdb
+export CFLAGS += -I. -Wall $(OPTFLAGS) -D_GNU_SOURCE -fPIC
 export LDLIBS += -lncursesw
 
 all: libstfl.a example