Index: head/math/ceres-solver/Makefile
===================================================================
--- head/math/ceres-solver/Makefile	(revision 561560)
+++ head/math/ceres-solver/Makefile	(revision 561561)
@@ -1,115 +1,116 @@
 # $FreeBSD$
 
 PORTNAME=	ceres-solver
 DISTVERSION=	2.0.0
 PORTREVISION=	1
 CATEGORIES=	math
 
 MAINTAINER=	jbeich@FreeBSD.org
 COMMENT=	Nonlinear least squares minimizer
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libglog.so:devel/glog
 RUN_DEPENDS:=	${BUILD_DEPENDS:Meigen*}
 
 USES=		cmake compiler:${OPENMP}c++11-lib eigen:3 localbase shebangfix
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 SHEBANG_FILES=	examples/slam/pose_graph_*/plot_results.py \
 		scripts/make_docs.py
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	BUILD_BENCHMARKS
 LDFLAGS+=	-Wl,--as-needed # -lccolamd -lcholmod -lrt from suitesparse
 PLIST_SUB=	VERSION=${DISTVERSION:C/rc.*//}
 EXAMPLESDIR=	${PREFIX}/share/examples/${PORTNAME:S/-solver//}
 DOCSDIR=	${PREFIX}/share/doc/${PORTNAME:S/-solver//}
 PORTDOCS=	*
 PORTEXAMPLES=	*
 
 OPTIONS_DEFINE=	CUSTOM_BLAS EXAMPLES DOCS GFLAGS LAPACK OPENMP SCHUR TEST
 OPTIONS_DEFAULT=CUSTOM_BLAS CXSPARSE OPENBLAS OPENMP SCHUR SUITESPARSE
 OPTIONS_RADIO=	LAPACK THREADS
 OPTIONS_RADIO_LAPACK=	ATLAS GOTOBLAS NETLIB OPENBLAS
 OPTIONS_GROUP=	SPARSE
 OPTIONS_GROUP_SPARSE=	CXSPARSE EIGENSPARSE SUITESPARSE
 
 CUSTOM_BLAS_DESC=	Handcoded BLAS routines instead of Eigen
 CUSTOM_BLAS_CMAKE_BOOL=	CUSTOM_BLAS
 
-DOCS_BUILD_DEPENDS=	sphinx-build:textproc/py-sphinx18
+DOCS_BUILD_DEPENDS=	sphinx-build:textproc/py-sphinx \
+			${PYTHON_PKGNAMEPREFIX}sphinx_rtd_theme>0:textproc/py-sphinx_rtd_theme@${PY_FLAVOR}
 DOCS_USES=		python:build
 DOCS_CMAKE_BOOL=	BUILD_DOCUMENTATION
 
 EXAMPLES_CMAKE_BOOL=	BUILD_EXAMPLES
 EXAMPLES_IMPLIES=	GFLAGS
 
 GFLAGS_DESC=		Google Flags support
 GFLAGS_LIB_DEPENDS=	libgflags.so:devel/gflags
 GFLAGS_CMAKE_BOOL=	GFLAGS
 
 OPENMP_USES=		compiler:openmp
 OPENMP_CMAKE_ON=	-DCERES_THREADING_MODEL:STRING="OPENMP"
 .if !exists(/usr/include/omp.h)
 # XXX ports/199603: LLVM openmp in base doesn't support aarch64, armv6, armv7 yet
 OPENMP_VARS=		OPENMP=gcc-
 .endif
 
 SCHUR_DESC=		Fixed-size schur specializations
 SCHUR_CMAKE_BOOL=	SCHUR_SPECIALIZATIONS
 
 # XXX Unbundle googletest/googlemock
 TEST_CMAKE_BOOL=	BUILD_TESTING
 TEST_TEST_TARGET=	test
 TEST_IMPLIES=		GFLAGS
 
 LAPACK_DESC=		Linear Algebra PACKage
 LAPACK_CMAKE_BOOL=	LAPACK
 # Avoid conflict with Ceres threading by using single-threaded BLAS library.
 # BLASLIB from USES=blaslapack cannot be used as it's multi-threaded.
 # https://github.com/xianyi/OpenBLAS/wiki/faq#multi-threaded
 ATLAS_USES=		blaslapack:atlas
 ATLAS_CMAKE_ON=		-DBLA_VENDOR:STRING="ATLAS" \
 			-DBLAS_LIBRARIES:FILEPATH="${LOCALBASE}/lib/libcblas.so" \
 			-DLAPACK_LIBRARIES:FILEPATH="${LOCALBASE}/lib/libalapack.so"
 ATLAS_IMPLIES=		LAPACK
 GOTOBLAS_DESC=		Goto blas implementation
 GOTOBLAS_USES=		blaslapack:gotoblas
 GOTOBLAS_CMAKE_ON=	-DBLA_VENDOR:STRING="Goto"
 GOTOBLAS_IMPLIES=	LAPACK
 NETLIB_USES=		blaslapack:netlib
 NETLIB_CMAKE_ON=	-DBLA_VENDOR:STRING="Generic"
 NETLIB_IMPLIES=		LAPACK
 OPENBLAS_USES=		blaslapack:openblas
 OPENBLAS_CMAKE_ON=	-DBLA_VENDOR:STRING="OpenBLAS"
 OPENBLAS_IMPLIES=	LAPACK
 
 SPARSE_DESC=		Sparse linear algebra library
 CXSPARSE_DESC=		CXSparse support
 CXSPARSE_LIB_DEPENDS=	libcxsparse.so:math/suitesparse
 CXSPARSE_CMAKE_ON=	-DCXSPARSE_INCLUDE_DIR:PATH="${LOCALBASE}/include/suitesparse"
 CXSPARSE_CMAKE_BOOL=	CXSPARSE
 EIGENSPARSE_DESC=	Simplicial Cholesky factorization in Eigen
 EIGENSPARSE_CMAKE_BOOL=	EIGENSPARSE
 EIGENSPARSE_VARS=	LICENSE+=LGPL21+ LICENSE_COMB=multi \
 			LICENSE_FILE_BSD3CLAUSE="${LICENSE_FILE}"
 SUITESPARSE_DESC=	SuiteSparse support
 SUITESPARSE_LIB_DEPENDS=libspqr.so:math/suitesparse
 SUITESPARSE_CMAKE_BOOL=	SUITESPARSE
 
 post-patch-DOCS-on:
 	@${REINPLACE_CMD} -e 's,python,${PYTHON_CMD:T},' \
 		${WRKSRC}/docs/source/CMakeLists.txt
 
 pre-install-TEST-on: do-test
 
 post-install-EXAMPLES-on:
 # Copy examples (stripped), their source and sample data but not tests programs
 	(cd ${WRKSRC}/examples && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR})
 	(cd ${WRKSRC} && ${COPYTREE_SHARE} data ${STAGEDIR}${EXAMPLESDIR})
 	(cd ${BUILD_WRKSRC} && ${COPYTREE_SHARE} bin ${STAGEDIR}${EXAMPLESDIR})
 	@${RM} -r ${STAGEDIR}${EXAMPLESDIR}/bin/*_test
 	-@${STRIP_CMD} ${STAGEDIR}${EXAMPLESDIR}/bin/* # may fail for non-root
 
 .include <bsd.port.mk>