Index: head/textproc/libcyaml/Makefile
===================================================================
--- head/textproc/libcyaml/Makefile	(revision 493686)
+++ head/textproc/libcyaml/Makefile	(revision 493687)
@@ -1,28 +1,28 @@
 # $FreeBSD$
 
 PORTNAME=	libcyaml
 DISTVERSION=	0.1.0
 CATEGORIES=	textproc
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C library for reading and writing YAML
 
 LICENSE=	ISCL
 
 LIB_DEPENDS=	libyaml.so:textproc/libyaml
 
-USES=		gmake localbase:ldflags
+USES=		compiler:c11 gmake localbase:ldflags
 USE_GITLAB=	yes
 GL_SITE=	https://git.zrythm.org
 GL_ACCOUNT=	zrythm
 GL_COMMIT=	3b568c9df39b5a95f1d652db43414fada3b1cc61
 USE_LDCONFIG=	yes
 
 PLIST_FILES=	include/cyaml/cyaml.h \
 		lib/libcyaml.a \
 		lib/libcyaml.so \
 		lib/libcyaml.so.0 \
 		lib/libcyaml.so.0.1.0 \
 		libdata/pkgconfig/libcyaml.pc
 
 .include <bsd.port.mk>