Index: x11/polybar/Makefile
===================================================================
--- x11/polybar/Makefile
+++ x11/polybar/Makefile
@@ -15,7 +15,7 @@
 BROKEN_armv6=	fails to build: KeyError: 'eventstruct'
 BROKEN_armv7=	fails to build: KeyError: 'eventstruct'
 
-BUILD_DEPENDS=	xcb-proto>=1.9:x11/xcb-proto
+BUILD_DEPENDS+=	xcb-proto>=1.9:x11/xcb-proto
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2 \
 		libinotify.so:devel/libinotify \
@@ -63,10 +63,18 @@
 MPD_CMAKE_BOOL=		ENABLE_MPD
 MPD_LIB_DEPENDS=	libmpdclient.so:audio/libmpdclient
 
-# fail while building on poudriere because it need network access
+# fail while building on poudriere because it needs network access
 # during the building process to download googletest on-the-fly.
 TESTS_BUILD_DEPENDS=	git>=0:devel/git
 TESTS_CMAKE_BOOL=	BUILD_TESTS
+
+.include <bsd.port.pre.mk>
+.if ${OSVERSION} > 1300000
+BUILD_DEPENDS+=	clang60:devel/llvm60 \
+		clang++60:devel/llvm60
+CC=		${LOCALBASE}/bin/clang60
+CXX=		${LOCALBASE}/bin/clang++60
+.endif
 
 do-test-TESTS-on:
 	cd ${TEST_WRKSRC} && ${SETENV} BUILD_TESTS=ON \