--- backend/src/c/xmlback/grammar/GNUmakefile.orig	2015-02-20 13:02:20 UTC
+++ backend/src/c/xmlback/grammar/GNUmakefile
@@ -20,8 +20,8 @@
 # Contributor(s): AGNITAS AG. 
 ##################################################################################
  
-CC	= gcc
-CFLAGS	= -I.. -I../../lib $(shell xml2-config --cflags)
+CC?= gcc
+CFLAGS+= -I.. -I../../lib $(shell xml2-config --cflags)
 LDFLAGS	=
 SRCS	= transform.c parse.c
 OBJS	= $(SRCS:%.c=%.o)