Index: head/benchmarks/libcelero/Makefile
===================================================================
--- head/benchmarks/libcelero/Makefile	(revision 529771)
+++ head/benchmarks/libcelero/Makefile	(revision 529772)
@@ -1,22 +1,30 @@
 # $FreeBSD$
 
 PORTNAME=	libcelero
 DISTVERSIONPREFIX=	v
 DISTVERSION=	2.6.0
+PORTREVISION=	1
 CATEGORIES=	benchmarks
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ benchmark authoring library/framework
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/license.txt
 
 BUILD_DEPENDS=	${LOCALBASE}/include/sys/sysinfo.h:devel/libsysinfo
 
-USES=		cmake compiler:c++11-lang localbase:ldflags
+USES=		cmake localbase:ldflags # compiler:c++11-lang
 USE_GITHUB=	yes
 GH_ACCOUNT=	DigitalInBlue
 GH_PROJECT=	Celero
 USE_LDCONFIG=	yes
+
+# workaround for breakage with clang-10: https://github.com/DigitalInBlue/Celero/issues/142
+LLVM_VER=	80
+BUILD_DEPENDS+=	clang${LLVM_VER}:devel/llvm${LLVM_VER}
+CPP=		clang-cpp${LLVM_VER}
+CC=		clang${LLVM_VER}
+CXX=		clang++${LLVM_VER}
 
 .include <bsd.port.mk>