--- src/GNUmakefile.orig	2015-04-07 14:37:56 UTC
+++ src/GNUmakefile
@@ -2,8 +2,8 @@
 
 TARGET = ../cave9
 
-CFLAGS += -std=c99 -Wall -Werror -ggdb `sdl-config --cflags`
-LDFLAGS += -lSDL_ttf -lSDL_image `sdl-config --libs` -L/usr/X11/lib -lGL -lGLU -lm
+CFLAGS += -std=c99 -Wall -isystem ${LOCALBASE}/include `sdl-config --cflags`
+LDFLAGS += -lSDL_ttf -lSDL_image -L${LOCALBASE}/lib `sdl-config --libs` -lGL -lGLU -lm
 
 ifdef GLOBAL_SCORE
 CFLAGS += -DGLOBAL_SCORE
@@ -11,7 +11,6 @@ LDFLAGS += -lSDL_net
 endif
 
 # necessary when some SDL libs are on /usr/local, and others on /usr
-CFLAGS += -I/usr/local/include/SDL -I/usr/include/SDL
 
 
 #{{{1  build rules
@@ -29,6 +28,8 @@ SRCS = \
 
 OBJS = $(subst .c,.o,$(SRCS))
 
+all: $(TARGET)
+
 $(TARGET): $(OBJS)
 	$(CC) $^ $(LDFLAGS) -o $@