--- make/rules.in
+++ make/rules.in
@@ -110,8 +110,8 @@
 ###     EXT_CFLAGS
 
 CC = 		@CC@
-CFLAGS =	@CFLAGS@
-LDFLAGS =	@LDFLAGS@
+CFLAGS =	@CFLAGS@ $(EXTRA_CFLAGS)
+LDFLAGS =	@LDFLAGS@ $(EXTRA_LDFLAGS)
 STD_CINCLUDES =	@STD_CINCLUDES@
 STD_CDEFINES =	@STD_CDEFINES@
 STD_CWARNINGS =	@STD_CWARNINGS@