diff -Nur gobject-introspection.orig/Makefile gobject-introspection/Makefile
--- gobject-introspection.orig/Makefile	2011-07-08 09:36:31.000000000 +0200
+++ gobject-introspection/Makefile	2011-07-08 10:29:54.000000000 +0200
@@ -40,11 +40,8 @@
 
 MAN1=		g-ir-compiler.1 g-ir-generate.1 g-ir-scanner.1
 
-.include <bsd.port.pre.mk>
-
 post-patch:
-	@${REINPLACE_CMD} -e 's|'cc'|'${CC:Q}'|g' \
+	@${REINPLACE_CMD} -e "s|'cc'|'${CC:Q:C/[[:space:]]+/', '/g}'|g" \
 		${WRKSRC}/giscanner/sourcescanner.py
 
-.include <bsd.port.post.mk>
-
+.include <bsd.port.mk>