Index: head/graphics/openshadinglanguage/Makefile
===================================================================
--- head/graphics/openshadinglanguage/Makefile	(revision 455399)
+++ head/graphics/openshadinglanguage/Makefile	(revision 455400)
@@ -1,35 +1,35 @@
 # Created by: Shane Ambler <FreeBSD@Shaneware.biz>
 # $FreeBSD$
 
 PORTNAME=	openshadinglanguage
 PORTVERSION=	1.8.10
-PORTREVISION=	4
 DISTVERSIONPREFIX=	Release-
+PORTREVISION=	5
 CATEGORIES=	graphics devel
 
 MAINTAINER=	FreeBSD@Shaneware.biz
 COMMENT=	Advanced shading language for production GI renderers
 
 LICENSE=	BSD3CLAUSE
 
 BUILD_DEPENDS=	llvm-config40:devel/llvm40
 LIB_DEPENDS=	libboost_thread.so:devel/boost-libs \
 		libIlmImf.so:graphics/OpenEXR \
 		libImath.so:graphics/ilmbase \
 		libOpenImageIO.so:graphics/openimageio
 RUN_DEPENDS=	llvm-config40:devel/llvm40
 
 USES=		bison cmake:outsource compiler:c++11-lang ncurses
 USE_GITHUB=	yes
 GH_ACCOUNT=	imageworks
 GH_PROJECT=	OpenShadingLanguage
 
 CMAKE_ARGS=	-DLLVM_CONFIG:STRING="${LOCALBASE}/bin/llvm-config40" \
-		-DENABLERTTI:BOOL=OFF -DUSE_BOOST_WAVE:BOOL=OFF
+		-DENABLERTTI:BOOL=ON -DUSE_BOOST_WAVE:BOOL=OFF
 USE_LDCONFIG=	yes
 
 post-patch:
 	@${REINPLACE_CMD} -e 's,/bin/bash,/bin/sh,' \
 		${WRKSRC}/src/liboslexec/serialize-bc.bash
 
 .include <bsd.port.mk>