--- sys/unix/Makefile.utl.orig	2015-12-07 08:26:01 UTC
+++ sys/unix/Makefile.utl
@@ -92,8 +92,18 @@ NHSROOT=..
 # flags for debugging:
 # CFLAGS = -g -I../include
 
-#CFLAGS = -O -I../include
-#LFLAGS =
+CFLAGS += -I../include
+ifeq ("$(GRAPHICS)","X11_GRAPHICS")
+CFLAGS += -DX11_GRAPHICS
+endif
+ifeq ("$(GRAPHICS)","QT_GRAPHICS")
+CFLAGS += -DQT_GRAPHICS
+endif
+ifeq ("$(GRAPHICS)","GNOME_GRAPHICS")
+CFLAGS += -DGNOME_GRAPHICS
+endif
+
+LFLAGS =
 
 LIBS =