Index: head/devel/oclgrind/Makefile
===================================================================
--- head/devel/oclgrind/Makefile	(revision 541304)
+++ head/devel/oclgrind/Makefile	(revision 541305)
@@ -1,40 +1,42 @@
 # Created by: Johannes Dieterich <jmd@freebsd.org>
 # $FreeBSD$
 
 PORTNAME=	oclgrind
 PORTVERSION=	20190907
 DISTVERSIONPREFIX=	v
 PORTREVISION=	1
 CATEGORIES=	devel
 
 MAINTAINER=	jmd@FreeBSD.org
 COMMENT=	SPIR interpreter and virtual OpenCL device simulator
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	opencl>=0:devel/opencl \
 		llvm-config${LLVM_DEFAULT}:devel/llvm${LLVM_DEFAULT}
 LIB_DEPENDS=	libOpenCL.so:devel/ocl-icd
 RUN_DEPENDS=	opencl>=0:devel/opencl
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	jrprice
 GH_PROJECT=	Oclgrind
 GH_TAGNAME=	e7c87b0
 USE_LDCONFIG=	yes
 
 CC=		clang${LLVM_DEFAULT}
 CXX=		clang++${LLVM_DEFAULT}
 CPP=		clang-cpp${LLVM_DEFAULT}
 
+# to be removed after switching to LLVM 9 or later
+CXXFLAGS_powerpc64=	-mabi=elfv2
 CMAKE_ARGS+=	-DLLVM_DIR=${LOCALBASE}/llvm${LLVM_DEFAULT}/lib/cmake/llvm
 
 .include <bsd.port.options.mk>
 
 .if ${LLVM_DEFAULT:C/[1-5]./&0/:S,-devel,990,} >= 90
 LLVM_DEFAULT=	80
 .endif
 
 .include <bsd.port.mk>