Index: head/devel/xtl-quant-stack/Makefile
===================================================================
--- head/devel/xtl-quant-stack/Makefile	(revision 499951)
+++ head/devel/xtl-quant-stack/Makefile	(revision 499952)
@@ -1,32 +1,32 @@
 # $FreeBSD$
 
 PORTNAME=	xtl
-DISTVERSION=	0.6.0
+DISTVERSION=	0.6.3
 CATEGORIES=	devel
 PKGNAMESUFFIX=	-quant-stack
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Template library that supports other quantstack projects
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 RUN_DEPENDS=	nlohmann-json>0:devel/nlohmann-json
 TEST_DEPENDS=	nlohmann-json>0:devel/nlohmann-json \
 		googletest>0:devel/googletest
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	QuantStack
 
 NO_BUILD=	yes
 NO_ARCH=	yes
 
-do-test: # tests fail to build: https://github.com/QuantStack/xtl/issues/106
-	@cd ${WRKSRC}/test && \
-		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -Dxtl_DIR:STRING=${STAGEDIR}${PREFIX}/lib/cmake/xtl && \
+do-test:
+	@cd ${WRKSRC} && \
+		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -Dxtl_DIR:STRING=${STAGEDIR}${PREFIX}/lib/cmake/xtl -DBUILD_TESTS=ON -DDOWNLOAD_GTEST=OFF && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} xtest
 
 .include <bsd.port.mk>
Index: head/devel/xtl-quant-stack/distinfo
===================================================================
--- head/devel/xtl-quant-stack/distinfo	(revision 499951)
+++ head/devel/xtl-quant-stack/distinfo	(revision 499952)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1553108601
-SHA256 (QuantStack-xtl-0.6.0_GH0.tar.gz) = 62e8665ffa85f10ae3d94e2a9e02c317b19a1f7bf72a88a5492972e501224566
-SIZE (QuantStack-xtl-0.6.0_GH0.tar.gz) = 107715
+TIMESTAMP = 1556171941
+SHA256 (QuantStack-xtl-0.6.3_GH0.tar.gz) = 9f55012a6848e6a145550535b2f27f0f2a10e42ec4325ff090bfa1f66a85797e
+SIZE (QuantStack-xtl-0.6.3_GH0.tar.gz) = 109217