Index: head/math/ambit/Makefile
===================================================================
--- head/math/ambit/Makefile	(revision 454499)
+++ head/math/ambit/Makefile	(revision 454500)
@@ -1,37 +1,39 @@
 # $FreeBSD$
 
 PORTNAME=	ambit
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.2-37
 DISTVERSIONSUFFIX=	-g9c7049a
+PORTREVISION=	1
 CATEGORIES=	math
+PKGNAMESUFFIX=	-tensor # avoid clash with shells/ambit
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C++ library for tensor product calculations
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libhdf5.so:science/hdf5 \
 		libsz.so:science/szip
 
 USES=		cmake:outsource
 USE_GITHUB=	yes
 GH_ACCOUNT=	jturney
 
 # some declared cmake options do nothing: see https://github.com/jturney/ambit/issues/25 and the patch
 CMAKE_ARGS+=	-DSHARED_ONLY:BOOL=ON
 CMAKE_ARGS+=	-DENABLE_OPENMP:BOOL=ON # bug#223678: find_package(OpenMP) doesn't find the openmp package
 CMAKE_ARGS+=	-DENABLE_TESTS:BOOL=OFF # https://github.com/jturney/ambit/issues/24
 
 .include <bsd.port.pre.mk>
 
 .if ${OPSYS} == FreeBSD && ${OSVERSION} < 1100000
 # It requires clang version >3.6
 BUILD_DEPENDS+=	clang38:lang/clang38
 RUN_DEPENDS+=	clang38:lang/clang38
 CC=		clang38
 CXX=		clang++38
 .endif
 
 .include <bsd.port.post.mk>