diff --git a/x11-toolkits/rubygem-gtk2/Makefile b/x11-toolkits/rubygem-gtk2/Makefile
index bcdb9980b672..738ee1fdb2c5 100644
--- a/x11-toolkits/rubygem-gtk2/Makefile
+++ b/x11-toolkits/rubygem-gtk2/Makefile
@@ -1,21 +1,31 @@
 PORTNAME=	gtk2
 PORTVERSION=	3.4.3
 PORTREVISION=	2
 CATEGORIES=	x11-toolkits rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Ruby binding of GTK+ 2.x
 WWW=		https://ruby-gnome2.osdn.jp/
 
 LICENSE=	LGPL21+
 LICENSE_FILE=	${WRKSRC}/COPYING.LIB
 
+LIB_DEPENDS=	libharfbuzz.so:print/harfbuzz \
+		libfontconfig.so:x11-fonts/fontconfig \
+		libfreetype.so:print/freetype2
 RUN_DEPENDS=	rubygem-atk>=${PORTVERSION}:accessibility/rubygem-atk \
 		rubygem-gdk_pixbuf2>=${PORTVERSION}:graphics/rubygem-gdk_pixbuf2 \
 		rubygem-pango>=${PORTVERSION}:x11-toolkits/rubygem-pango
 
-USES=		gem gnome
-USE_GNOME=	gtk20
+USES=		gem gnome xorg
+USE_GNOME=	cairo gdkpixbuf2 gtk20 introspection
+USE_XORG=	x11
+
+.include <bsd.port.options.mk>
+
+.if ${OPSYS} == FreeBSD && ( ${OSVERSION} >= 1400079 || ( ${OSVERSION} >= 1302505 && ${OSVERSION} < 1400000 ))
+CONFIGURE_ARGS+=	--with-cflags="-Wno-error=int-conversion"
+.endif
 
 .include <bsd.port.mk>