--- Makefile.orig	2014-12-20 18:16:45.000000000 -0600
+++ Makefile	2015-01-13 09:54:05.966828854 -0600
@@ -42,10 +42,21 @@
 
 .include <bsd.port.options.mk>
 
+# because webkit-gtk3 needs it
+.if ${OSVERSION} < 1000000
+USES+=		compiler:c++11-lib
+
 .if ${PORT_OPTIONS:MOPENMP}
-USE_GCC=	yes
+LDFLAGS+=	-lstdc++
+.endif
+
+.else
+.if ${PORT_OPTIONS:MOPENMP}
+USES+=		compiler:openmp
+LIB_DEPENDS+=	libc++.so:${PORTSDIR}/devel/libc++
 LDFLAGS+=	-lc++
 .endif
+.endif
 
 SHEBANG_FILES=	${WRKSRC}/${CONFIGURE_SCRIPT} ${WRKSRC}/chkver