Index: head/graphics/webp/Makefile
===================================================================
--- head/graphics/webp/Makefile	(revision 517076)
+++ head/graphics/webp/Makefile	(revision 517077)
@@ -1,44 +1,45 @@
 # Created by: johans
 # $FreeBSD$
 
 PORTNAME=	webp
 PORTVERSION=	1.0.3
 PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	http://downloads.webmproject.org/releases/webp/ \
 		https://storage.googleapis.com/downloads.webmproject.org/releases/webp/
 DISTNAME=	lib${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Google WebP image format conversion tool
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libgif.so:graphics/giflib \
 		libpng.so:graphics/png \
 		libtiff.so:graphics/tiff
 
 OPTIONS_DEFINE=	X11
 OPTIONS_SUB=	yes
 
 PORTSCOUT=	limit:^[0-9\.]*$$
 
 USES=		compiler:c11 jpeg libtool localbase
 
 CONFIGURE_ARGS=	--enable-libwebpdecoder \
 		--enable-libwebpdemux  \
 		--enable-libwebpmux \
 		--with-pkgconfigdir=${PREFIX}/libdata/pkgconfig
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
 USE_LDCONFIG=	yes
 
 X11_CONFIGURE_OFF=	build_vwebp=no
 X11_CONFIGURE_ON=	build_vwebp=yes
+X11_USES=		gl
 X11_USE=		GL=glut
 
 post-patch:
 	@${REINPLACE_CMD} '/build_vwebp=yes/d' ${WRKSRC}/configure
 
 .include <bsd.port.mk>