Index: head/benchmarks/netperfmeter/Makefile
===================================================================
--- head/benchmarks/netperfmeter/Makefile	(revision 513798)
+++ head/benchmarks/netperfmeter/Makefile	(revision 513799)
@@ -1,23 +1,23 @@
 # Created by: Thomas Dreibholz <dreibh@iem.uni-due.de>
 # $FreeBSD$
 
 PORTNAME=	netperfmeter
 PORTVERSION=	1.8.4
 CATEGORIES=	benchmarks
 MASTER_SITES=	https://www.uni-due.de/~be0001/netperfmeter/download/
 
 MAINTAINER=	dreibh@iem.uni-due.de
 COMMENT=	Network Performance Meter
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		cmake shebangfix tar:xz
+USES=		cmake compiler:c11 shebangfix tar:xz
 
 SHEBANG_FILES=	src/pdfembedfonts src/setpdfmetadata src/plot-netperfmeter-results
 
 CMAKE_ARGS=	-DCMAKE_INSTALL_MANDIR=${PREFIX}/man
 CMAKE_OFF=	WITH_NEAT BUILD_TEST_PROGRAMS
 CMAKE_ON=	BUILD_PLOT_PROGRAMS
 
 .include <bsd.port.mk>