--- Makefile.defs.orig	2016-11-20 04:17:33 UTC
+++ Makefile.defs
@@ -23,6 +23,6 @@ ifeq ($(DEBUG),1)
 DEFS    += -DG_DISABLE_DEPRECATED -DDEBUG
 endif
 
-CFLAGS   = ${OPT} 
-CPPFLAGS = ${INCLDIR} ${DEFS}
-LDFLAGS  = ${LIBDIR} ${LIBS}
+CFLAGS   += ${OPT} 
+CPPFLAGS += ${INCLDIR} ${DEFS}
+LDFLAGS  += ${LIBDIR} ${LIBS}