--- Makefile.orig	2002-04-05 05:56:05.000000000 +0200
+++ Makefile	2013-11-05 16:39:16.000000000 +0100
@@ -6,7 +6,7 @@
 PREFIX = /usr/local/
 
 # What compiler should be used
-CC = gcc 
+CC?= gcc 
 
 # Where to find the gtk-config script
 GTK_DIR =
@@ -20,9 +20,9 @@ GTK_DIR =
 # add -DUSE_GNOME if you want to make grpn GNOME compliant.
 
 
-CFLAGS = -g -O2 -I/usr/X11/include  `$(GTK_DIR)gtk-config --cflags` -DGTK_VER_1_1
+CFLAGS+= -I${LOCALBASE}/include -I${PREFIX}/include  `${GTK_CONFIG} --cflags` -DGTK_VER_1_1
 
-DFLAGS =  -L/usr/X11/lib 
+DFLAGS = -L${LOCALBASE}/lib -L${PREFIX}/lib
 
 # end of user configurable section
 
@@ -37,7 +37,7 @@ OBJS = test_gtk_ver.o real.o complex.o m
 
 
 
-LIBS   = `$(GTK_DIR)gtk-config --libs` -lX11 -lm 
+LIBS   = `${GTK_CONFIG} --libs` -lX11 -lm 
 
 
 grpn:	$(OBJS)