--- a/make/linux.mk	Sun Jan 13 14:16:45 2013 +0100
+++ b/make/linux.mk	Sat Jan 19 20:13:07 2013 +0100
@@ -30,6 +30,7 @@
 # compiler and linker flags
 
 LDFLAGS = 
+CFLAGS += -DLINUX
 
 
 # platform dependend source files