Index: Makefile
===================================================================
--- Makefile	(revision 488281)
+++ Makefile	(working copy)
@@ -34,4 +34,10 @@
 
 CMAKE_SOURCE_PATH=	${WRKSRC}/src
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${CHOSEN_COMPILER_TYPE} == gcc
+CFLAGS+=	-Wno-expansion-to-defined
+.endif
+
+.include <bsd.port.post.mk>