Index: head/games/minetestmapper/Makefile
===================================================================
--- head/games/minetestmapper/Makefile	(revision 568152)
+++ head/games/minetestmapper/Makefile	(revision 568153)
@@ -1,42 +1,42 @@
 # Created by: Dmitry Marakasov <amdmi3@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	minetestmapper
 PORTVERSION=	20200328
 CATEGORIES=	games graphics
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Generate an overview image of a minetest map
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libgd.so:graphics/gd \
 		libsqlite3.so:databases/sqlite3
 
-USES=		cmake pkgconfig
+USES=		cmake compiler:c11 pkgconfig
 USE_GITHUB=	yes
 GH_ACCOUNT=	minetest
 
 DATADIR=	${PREFIX}/share/minetest
 
 PORTDOCS=	*
 
 OPTIONS_DEFINE=		DOCS
 OPTIONS_GROUP=		DATABASE
 DATABASE_DESC=		Database support
 OPTIONS_GROUP_DATABASE= PGSQL LEVELDB REDIS
 
 PGSQL_USES=		pgsql
 PGSQL_CMAKE_BOOL=	ENABLE_POSTGRESQL
 LEVELDB_DESC=		Enable LevelDB backend
 LEVELDB_CMAKE_BOOL=	ENABLE_LEVELDB
 LEVELDB_LIB_DEPENDS=	libleveldb.so:databases/leveldb
 REDIS_DESC=		Enable Redis backend
 REDIS_CMAKE_BOOL=	ENABLE_REDIS
 REDIS_LIB_DEPENDS=	libhiredis.so:databases/hiredis
 
 post-patch:
 	@${REINPLACE_CMD} -e '/install.*COPYING/d' ${WRKSRC}/CMakeLists.txt
 
 .include <bsd.port.mk>