--- Makefile.orig	2008-07-30 17:51:49.000000000 +0200
+++ Makefile	2012-04-21 14:25:52.000000000 +0200
@@ -1,5 +1,5 @@
-CFLAGS = -O2 -Wall $(shell sdl-config --cflags)
-LDFLAGS = -lm $(shell sdl-config --libs)
+CFLAGS = $(shell ${SDL_CONFIG} --cflags)
+LDFLAGS = -lm $(shell ${SDL_CONFIG} --libs)
 
 all: sets