Index: Makefile
===================================================================
--- Makefile	(revision 497616)
+++ Makefile	(working copy)
@@ -17,7 +17,7 @@
 LIB_DEPENDS=	libpcre.so:devel/pcre
 RUN_DEPENDS=	bash:shells/bash
 
-USES=		gmake perl5 tk shebangfix
+USES=		compiler:c11 gmake perl5 tk shebangfix
 
 SHEBANG_FILES=	extensions/*.sh \
 		gateway/*.pl gateway/*.sh \