diff --git a/math/casadi/Makefile b/math/casadi/Makefile
index 4bcfa10de880..570d96ffb215 100644
--- a/math/casadi/Makefile
+++ b/math/casadi/Makefile
@@ -1,83 +1,72 @@
 PORTNAME=	casadi
 DISTVERSION=	3.6.0
 PORTREVISION=	2
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Symbolic framework for numeric optimization
 WWW=		https://web.casadi.org/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 LIB_DEPENDS=	libcoinmumps.so:math/coin-or-mumps
 
 USES=		cmake compiler:c++11-lang pkgconfig
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
 CFLAGS+=	-fPIC
 CXXFLAGS+=	-fPIC
 
 CMAKE_OFF=	WITH_DEEPBIND WITH_BUILD_BLASFEO
 
 # cmake-3.16: disable build of examples (they are not installed anyways),
 # and fail due to not setting up the linker environment properly:
 CMAKE_OFF+=	WITH_EXAMPLES
 
 OPTIONS_DEFINE=		BLASFEO BONMIN CLANG IPOPT LAPACK QPOASES
 OPTIONS_DEFAULT=	BLASFEO BONMIN IPOPT LAPACK QPOASES
 OPTIONS_SUB=		yes
 
 BLASFEO_DESC=		Build with BLASFEO
 BLASFEO_CMAKE_BOOL=	WITH_BLASFEO
 BLASFEO_BUILD_DEPENDS=	blasfeo>0:math/blasfeo
 
 BONMIN_DESC=		Build with Bonmin
 BONMIN_CMAKE_BOOL=	WITH_BONMIN
 BONMIN_USES=		blaslapack:netlib fortran
 BONMIN_LIB_DEPENDS=	libbonmin.so:math/bonmin \
 			libCbcSolver.so:math/cbc \
 			libCgl.so:math/cgl \
 			libClp.so:math/clp \
 			libcoinasl.so:math/asl \
 			libCoinUtils.so:math/coinutils \
 			libipopt.so:math/ipopt \
 			libnauty.so:math/nauty \
 			libopenblas.so:math/openblas \
 			libOsi.so:math/osi
 
 CLANG_DESC=		Build with clang for JIT
-CLANG_USES=		llvm:16
+CLANG_USES=		llvm:16,build,run
 CLANG_CMAKE_BOOL=	WITH_CLANG
 CLANG_CMAKE_ON=		-DLLVM_INSTALL_PREFIX=${LLVM_PREFIX} -DOLD_LLVM=ON
 CLANG_BROKEN=		fails to find clang, see https://github.com/casadi/casadi/issues/3089
 
 IPOPT_DESC=		Build with IPopt
 IPOPT_CMAKE_BOOL=	WITH_IPOPT
 IPOPT_USES=		blaslapack:netlib fortran
 IPOPT_LIB_DEPENDS=	libipopt.so:math/ipopt
 
 LAPACK_DESC=		Build with LAPACK
 LAPACK_CMAKE_BOOL=	WITH_LAPACK
 LAPACK_USES=		blaslapack:openblas
 
 QPOASES_DESC=		Build with qpOASES
 QPOASES_CMAKE_BOOL=	WITH_QPOASES
 QPOASES_LIB_DEPENDS=	libopenblas.so:math/openblas
 QPOASES_IMPLIES=	LAPACK
 
-.include <bsd.port.options.mk>
-
-.if ${PORT_OPTIONS:MCLANG}
-# use clang from ports because cmake can't find base llvm for JIT
-BUILD_DEPENDS+=	clang${LLVM_DEFAULT}:devel/llvm${LLVM_DEFAULT}
-RUN_DEPENDS+=	clang${LLVM_DEFAULT}:devel/llvm${LLVM_DEFAULT}
-CPP=		clang-cpp${LLVM_DEFAULT}
-CC=		clang${LLVM_DEFAULT}
-CXX=		clang++${LLVM_DEFAULT}
-.endif
-
 PORTSCOUT=	limit:^.*[1-9]\..* # prevent tags like ge2
 
 .include <bsd.port.mk>