--- ./libresample-0.1.3/Makefile.in.orig	2013-03-30 04:01:28.000000000 +0100
+++ ./libresample-0.1.3/Makefile.in	2013-03-30 14:03:51.000000000 +0100
@@ -3,8 +3,8 @@
 # systems, use this file as a template to create a
 # working Makefile.
 
-CC = @CC@
-CFLAGS = @CFLAGS@ -Wall
+CC ?= @CC@
+CFLAGS ?= @CFLAGS@ -Wall
 
 LIBS = @LIBS@ -lm