Index: head/math/xtensor/Makefile
===================================================================
--- head/math/xtensor/Makefile	(revision 476726)
+++ head/math/xtensor/Makefile	(revision 476727)
@@ -1,32 +1,32 @@
 # $FreeBSD$
 
 PORTNAME=	xtensor
 DISTVERSION=	0.17.0
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Multi-dimensional arrays with broadcasting and lazy computing
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 TEST_DEPENDS=	googletest>0:devel/googletest
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	QuantStack
 GH_TUPLE=	QuantStack:xtl:0.4.13:xtl/xtl
 NO_BUILD=	yes
 NO_ARCH=	yes
 
 post-install:
-	@cd ${WRKSRC}/xtl/include && ${COPYTREE_SHARE} xtl ${STAGEDIR}${PREFIX}/include
+	cd ${WRKSRC}/xtl/include && ${COPYTREE_SHARE} xtl ${STAGEDIR}${PREFIX}/include
 
 do-test:
 	@${RLN} ${STAGEDIR}${PREFIX}/include ${WRKSRC}/test/staged-include
 	@cd ${WRKSRC}/test && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} . && \
 		${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} && \
 		${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} xtest
 
 .include <bsd.port.mk>