--- Makefile.orig	2015-02-16 19:32:49.615489099 +0100
+++ Makefile	2015-02-16 19:34:14.944477884 +0100
@@ -35,7 +35,7 @@
 
 .include <bsd.port.options.mk>
 
-USES=		gmake libtool perl5 tar:bzip2
+USES=		cpe gmake libtool perl5 tar:bzip2
 USE_PERL5=	build
 USE_GL=		gl
 USE_XORG?=	xf86driproto glproto xdmcp x11 xkbfile xxf86misc xxf86vm xaw7 \
@@ -52,6 +52,7 @@
 		--localstatedir=/var --without-dtrace --disable-xephyr \
 		--enable-record=yes
 INSTALL_TARGET=	install-strip
+CPE_VENDOR=	x
 
 .if ${SLAVE_PORT} == "no"
 SUB_FILES=	pkg-install pkg-deinstall