diff --git a/graphics/openshadinglanguage/Makefile b/graphics/openshadinglanguage/Makefile
index e7b9cbed0f71..7c870e1f140f 100644
--- a/graphics/openshadinglanguage/Makefile
+++ b/graphics/openshadinglanguage/Makefile
@@ -1,86 +1,86 @@
 PORTNAME=	openshadinglanguage
 DISTVERSIONPREFIX=	v
 DISTVERSION=	1.13.10.0
 # PORTREVISION must be set with ?= so as not to stomp over
 # py-openimageio's PORTREVISION.
 # Also, just to be on the safe side, when resetting,
 # best keep PORTREVISION?=	0.
 PORTREVISION?=	0
 CATEGORIES?=	graphics devel
 
 MAINTAINER=	FreeBSD@Shaneware.biz
 COMMENT?=	Advanced shading language for production GI renderers
 WWW=		https://github.com/AcademySoftwareFoundation/OpenShadingLanguage
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
 BROKEN_riscv64=	fails to build: /usr/include/c++/v1/__threading_support:135:3: Unsupported architecture
 
 ONLY_FOR_ARCHS=		aarch64 amd64 powerpc64 powerpc64le
 ONLY_FOR_ARCHS_REASON=	fails static_assert(sizeof(ustringhash) == sizeof(size_t)
 
 LIB_DEPENDS=	libboost_thread.so:devel/boost-libs \
 		libImath.so:math/Imath \
 		libOpenEXR.so:graphics/openexr \
 		libOpenImageIO.so:graphics/openimageio \
 		libpartio.so:graphics/partio \
 		libpugixml.so:textproc/pugixml
 
-USES=		bison cmake compiler:c++17-lang localbase ncurses
+USES=		bison cmake compiler:c++17-lang llvm:lib localbase ncurses
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	AcademySoftwareFoundation
 GH_PROJECT=	OpenShadingLanguage
 
 CMAKE_ARGS+=	-DCMAKE_CXX_STANDARD:INTEGER=17 -DCMAKE_INSTALL_DOCDIR:STRING=${DOCSDIR} \
 		-DLLVM_CONFIG:STRING="${LOCALBASE}/bin/llvm-config${LLVM_VERSION}"
 CMAKE_ON=	ENABLE_RTTI OSL_BUILD_TESTS USE_LIBCPLUSPLUS USE_LLVM_BITCODE
 
 # DISTVERSION has an extra digit which isn't in the lib name
 # for LIBVERS we want the first three digits
 PLIST_SUB=	SHL2=${PORTVERSION:R:R} SHL3=${PORTVERSION:R}
 
 OPTIONS_DEFINE=		OSLTOY
 OPTIONS_SUB=		yes
 
 OSLTOY_DESC=		Interactive shader edit and visualize tool
 OSLTOY_USES=		qt:6 gl
 OSLTOY_USE=		GL=gl,opengl QT=base
 OSLTOY_CMAKE_BOOL=	USE_QT
 
 .include <bsd.port.options.mk>
 
 post-patch:
 	@${REINPLACE_CMD} -e 's,%%DATADIR%%,${DATADIR},' \
 		-e 's,%%PYCMD%%,${PYTHON_CMD},' \
 		${WRKSRC}/CMakeLists.txt \
 		${WRKSRC}/src/shaders/CMakeLists.txt \
 		${WRKSRC}/src/doc/CMakeLists.txt \
 		${WRKSRC}/src/liboslexec/CMakeLists.txt
 
 .if ${SLAVE_PORT} == yes
 BUILD_DEPENDS+=	${PREFIX}/share/cmake/pybind11/pybind11Config.cmake:devel/pybind11
 LIB_DEPENDS+=	liboslquery.so:graphics/openshadinglanguage
 RUN_DEPENDS+=	${PYTHON_PKGNAMEPREFIX}openimageio>0:graphics/py-openimageio@${PY_FLAVOR}
 USES+=		python
 USE_PYTHON=	flavors
 CMAKE_ARGS+=	-DPYTHON_VERSION=${PYTHON_VER}
 CMAKE_ON+=	USE_PYTHON
 PLIST=		${PKGDIR}/pkg-plist-pybind
 
 do-install:
 	${MKDIR} ${STAGEDIR}${PYTHON_SITELIBDIR}
 	${INSTALL_LIB} ${BUILD_WRKSRC}/lib/python/site-packages/oslquery.so ${STAGEDIR}${PYTHON_SITELIBDIR}
 .else # SLAVE_PORT != yes
 # using python:env as this port doesn't need to use python
 # a python util script is installed for user consumption
 # it is not required for using the port, only to assist developers using the libs
 USES+=		python:build shebangfix
 USE_LDCONFIG=	yes
 CMAKE_OFF+=	USE_PYTHON
 BINARY_ALIAS+=	python=${PYTHON_CMD}
 SHEBANG_FILES+=	src/build-scripts/serialize-bc.py
 .endif # SLAVE_PORT
 
 .include <bsd.port.mk>