Index: head/www/firefox/Makefile
===================================================================
--- head/www/firefox/Makefile	(revision 412299)
+++ head/www/firefox/Makefile	(revision 412300)
@@ -1,87 +1,88 @@
 # Created by: Alan Eldridge <alane@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	firefox
 DISTVERSION=	45.0.1
 DISTVERSIONSUFFIX=.source
 PORTREVISION=	3
 PORTEPOCH=	1
 CATEGORIES=	www ipv6
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}/source \
 		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}-candidates/build2/source
 
 MAINTAINER=	gecko@FreeBSD.org
 COMMENT=	Web browser based on the browser portion of Mozilla
 
 BUILD_DEPENDS=	nspr>=4.12:${PORTSDIR}/devel/nspr \
 		nss>=3.21.1:${PORTSDIR}/security/nss \
 		libevent2>=2.0.21_2:${PORTSDIR}/devel/libevent2 \
 		soundtouch>=1.9.0:${PORTSDIR}/audio/soundtouch \
 		harfbuzz>=1.1.0:${PORTSDIR}/print/harfbuzz \
 		graphite2>=1.3.6:${PORTSDIR}/graphics/graphite2 \
 		png>=1.6.19:${PORTSDIR}/graphics/png \
 		libvorbis>=1.3.5,3:${PORTSDIR}/audio/libvorbis \
 		libvpx>=1.5.0:${PORTSDIR}/multimedia/libvpx \
 		sqlite3>=3.9.1:${PORTSDIR}/databases/sqlite3 \
 		${PYTHON_PKGNAMEPREFIX}sqlite3>0:${PORTSDIR}/databases/py-sqlite3 \
 		v4l_compat>0:${PORTSDIR}/multimedia/v4l_compat \
 		autoconf-2.13:${PORTSDIR}/devel/autoconf213 \
 		yasm:${PORTSDIR}/devel/yasm \
 		zip:${PORTSDIR}/archivers/zip \
 		unzip:${PORTSDIR}/archivers/unzip
 
 LIB_DEPENDS=	libv4l2.so:${PORTSDIR}/multimedia/libv4l
 
 USE_GECKO=	gecko
 CONFLICTS_INSTALL=	firefox-esr-45.* firefox-esr-3[18].* firefox-esr-24.*
 MOZ_PKGCONFIG_FILES=	# empty
 USE_MOZILLA=	# empty
 MOZILLA_NAME=	Firefox
 
 USE_QT5=	# empty
 QT_NONSTANDARD=	yes
 USE_GL=		gl
 USES=		tar:xz
 
 FIREFOX_ICON=		${MOZILLA}.png
 FIREFOX_ICON_SRC=	${PREFIX}/lib/${MOZILLA}/browser/chrome/icons/default/default48.png
 MOZ_OPTIONS=	--program-transform-name='s/firefox/${MOZILLA}/' \
 		--enable-application=browser \
 		--enable-official-branding
 
 OPTIONS_EXCLUDE=	GSTREAMER LOGGING
 OPTIONS_DEFINE=		RUST
 OPTIONS_DEFAULT=	BUNDLED_CAIRO GTK3 ${OPTIONS_DEFAULT_${OPSYS}_${OSREL:R}_${ARCH}}
 
 # XXX lang/rust currently builds only on these platforms
+OPTIONS_DEFAULT_DragonFly_4_x86_64=	RUST
 OPTIONS_DEFAULT_FreeBSD_10_amd64=	RUST
 OPTIONS_DEFAULT_FreeBSD_10_i386=	RUST
 OPTIONS_DEFAULT_FreeBSD_11_amd64=	RUST
 OPTIONS_DEFAULT_FreeBSD_11_i386=	RUST
 
 OPTIONS_SINGLE+=	TOOLKIT
 OPTIONS_SINGLE_TOOLKIT=	GTK2 GTK3
 
 .include "${.CURDIR}/../../www/firefox/Makefile.options"
 
 WRKSRC:=	${WRKDIR}/${PORTNAME}-${DISTVERSION}
 
 post-extract:
 	@${SED} -e 's|@FIREFOX_ICON@|${FIREFOX_ICON}|' -e 's|@MOZILLA@|${MOZILLA}|' \
 		-e 's|@MOZILLA_NAME@|${MOZILLA_NAME}|' \
 		<${FILESDIR}/firefox.desktop.in >${WRKDIR}/${MOZILLA}.desktop
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
 		${WRKSRC}/browser/app/nsBrowserApp.cpp
 
 pre-configure:
 	(cd ${WRKSRC} && ${LOCALBASE}/bin/autoconf-2.13)
 	(cd ${WRKSRC}/js/src/ && ${LOCALBASE}/bin/autoconf-2.13)
 
 post-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/share/pixmaps
 	${INSTALL_DATA} ${WRKDIR}/${MOZILLA}.desktop ${STAGEDIR}${PREFIX}/share/applications/
 	${LN} -sf ${FIREFOX_ICON_SRC} ${STAGEDIR}${PREFIX}/share/pixmaps/${FIREFOX_ICON}
 
 .include <bsd.port.mk>