--- dvbtune-0.5/Makefile.orig	2006-01-06 13:01:11.973196250 +0100
+++ dvbtune-0.5/Makefile	2006-01-06 13:01:46.667364500 +0100
@@ -1,5 +1,6 @@
 INCS=-I /usr/include/libxml2
-CFLAGS= -Wall $(INCS)
+CFLAGS ?= -Wall
+CFLAGS += $(INCS)
 CC=gcc
 all: dvbtune