diff --git a/math/lapack/Makefile b/math/lapack/Makefile
index 6dc9fce94a62..4ba78403cad4 100644
--- a/math/lapack/Makefile
+++ b/math/lapack/Makefile
@@ -1,176 +1,173 @@
 PORTNAME?=	lapack
-PORTVERSION=	3.11.0
+PORTVERSION=	3.12.0
 .if !(defined(BLAS_SLAVEPORT) || defined(CBLAS_SLAVEPORT) || defined(XLAPACK_SLAVEPORT) || defined(LAPACKE_SLAVEPORT))
-PORTREVISION=	1
+PORTREVISION=	0
 .else
-PORTREVISION?=	1	# Never remove this line, keep PORTREVISION?=0 in case.
+PORTREVISION?=	0	# Never remove this line, keep PORTREVISION?=0 in case.
 .endif
 CATEGORIES=	math
 MASTER_SITES=	https://github.com/Reference-LAPACK/lapack/archive/refs/tags/:src	\
 		http://www.netlib.org/lapack/:man	\
 		LOCAL/thierry/lapack-${PORTVERSION}/:man
-DISTFILES=	v${PORTVERSION:R}${EXTRACT_SUFX}:src
+DISTFILES=	v${PORTVERSION}${EXTRACT_SUFX}:src
 .if make(makesum) || !(defined(BLAS_SLAVEPORT) || defined(XLAPACK_SLAVEPORT))
 DISTFILES+=	manpages.tgz:man
 .endif
 DIST_SUBDIR=	lapack-${PORTVERSION}
 
 MAINTAINER?=	fortran@FreeBSD.org
 COMMENT?=	Linear Algebra PACKage
 WWW?=		https://www.netlib.org/lapack/
 
 LICENSE?=	BSD3CLAUSE
 
 USES=		cmake:testing cpe fortran
-WRKSRC=		${WRKDIR}/lapack-${PORTVERSION:R}
+WRKSRC=		${WRKDIR}/lapack-${PORTVERSION}
 # The actual math/scilab needs deprecated functions - to be removed later
 CMAKE_ON=	BUILD_SHARED_LIBS BUILD_DEPRECATED
 USE_LDCONFIG=	yes
 CPE_VENDOR=	lapack_project
 CPE_PRODUCT=	lapack
 
 SVERSION=	${PORTVERSION:R:R}
 PLIST_SUB=	SVERSION="${SVERSION}" VER=${PORTVERSION}
 
 .include <bsd.port.options.mk>
 
 .if defined(BLAS_SLAVEPORT)
 BUILD_WRKSRC=		${CONFIGURE_WRKSRC}/BLAS/SRC
 INSTALL_WRKSRC=		${BUILD_WRKSRC}
 BLASLIB=		libblas.a
 LIBS=			blas
 PLIST_SUB+=		BLAS="" CBLAS="@comment " LAPACK="@comment " XLAPACK="@comment " LAPACKE="@comment "
 .elif defined(CBLAS_SLAVEPORT)
 BUILD_DEPENDS+=		lapack>0:math/lapack
 LIB_DEPENDS+=		libblas.so:math/blas
 CMAKE_ON+=		CBLAS
 BUILD_WRKSRC=		${CONFIGURE_WRKSRC}/CBLAS
 INSTALL_WRKSRC=		${BUILD_WRKSRC}
 CBLASLIB=		libcblas.a
 LIBS=			cblas
 PLIST_SUB+=		BLAS="@comment " CBLAS="" LAPACK="@comment " XLAPACK="@comment " LAPACKE="@comment "
 .elif defined(LAPACKE_SLAVEPORT)
 USES+=			blaslapack
 CMAKE_ON+=		USE_OPTIMIZED_LAPACK LAPACKE
 CMAKE_ARGS+=		-DBLAS_LIBRARIES="${LOCALBASE}/lib/libblas.so"		\
 			-DLAPACK_LIBRARIES="${LOCALBASE}/lib/liblapack.so"
 BUILD_WRKSRC=		${CONFIGURE_WRKSRC}/LAPACKE
 INSTALL_WRKSRC=		${BUILD_WRKSRC}
 LAPACKELIB=		liblapacke.a
 PLIST_SUB+=		BLAS="@comment " CBLAS="@comment " LAPACK="@comment " XLAPACK="@comment " LAPACKE=""
 .elif defined(XLAPACK_SLAVEPORT)
 LIB_DEPENDS+=		libblas.so:math/blas		\
 			liblapack.so:math/lapack	\
 			libxblas.so:math/xblas
 FFLAGS+=		-fallow-argument-mismatch
 CMAKE_ON+=		USE_XBLAS  BUILD_TESTING
 CMAKE_ARGS+=		-DBLAS_LIBRARIES="${LOCALBASE}/lib/libblas.so"
 PLIST_SUB+=		BLAS="@comment " CBLAS="@comment " LAPACK="@comment " XLAPACK="" LAPACKE="@comment "
 .else
 # Upstream recommand to use an optimized BLAS, but it would cause conflicts
 # among the dependencies: for an optimized lapack switch to OpenBLAS.
 # BUILD_TESTING to get tmglib.
 LIB_DEPENDS+=		libblas.so:math/blas
 . if defined(MAINTAINER_MODE)
 USES+=			python:build,test
+BINARY_ALIAS+=		python3=${PYTHON_CMD}
 . endif
 CMAKE_ON+=		USE_OPTIMIZED_BLAS BUILD_TESTING
 CMAKE_ARGS+=		-DBLAS_LIBRARIES="${LOCALBASE}/lib/libblas.so"
 LIBS=			lapack
 PLIST_SUB+=		BLAS="@comment " CBLAS="@comment " LAPACK="" XLAPACK="@comment " LAPACKE="@comment "
 .endif
 
 .include <bsd.port.pre.mk>
 
 post-patch:
 	${SED} -Ee '\
 		s@^(FORTRAN|LOADER)([[:blank:]]*=)(.*)@\1\2 $${FC}@; \
 		s@^(OPTS[[:blank:]]*=)(.*)@\1 $${FFLAGS} $${EXTRAFLAGS}@; \
 		s@^NOOPT[[:blank:]]*=.*@& $${EXTRAFLAGS}@; \
 		s@^(LOADOPTS[[:blank:]]*=)(.*)@\1 $${LDFLAGS} $${EXTRAFLAGS}@; \
 		s@^(CC[[:blank:]]*=)(.*)@@; \
 		s@^(FC[[:blank:]]*=)(.*)@@; \
 		s@^(CFLAGS[[:blank:]]*)(=)(.*)@\1 += $${EXTRAFLAGS}@; \
 		s@^(FFLAGS[[:blank:]]*=)(.*)@@; \
 		s@^(LDFLAGS[[:blank:]]*=)(.*)@@; \
 		\@(BLAS|LAPACKE|RAN)LIB[[:blank:]]*=@d;' \
 			${WRKSRC}/make.inc.example > ${WRKSRC}/make.inc
 
 pre-configure:
 	${REINPLACE_CMD} -e 's@\./lapack_testing\.py@${S} &@' \
 		${WRKSRC}/Makefile
 	${FIND} ${WRKSRC} -name Makefile | ${XARGS}	\
 		${SED} -i ".bak" -e 's|^ifdef|.ifdef|;s|^endif|.endif|'
-.if defined(MAINTAINER_MODE)
-	${REINPLACE_CMD} -e 's|PythonInterp 2.7|PythonInterp ${PYTHON_VER}|'	\
-		${WRKSRC}/CMakeLists.txt
-.endif
 
 post-build:
 .if defined(BLAS_SLAVEPORT)
 	${SED} -e 's|%%LIB%%|blas|g;s|cd SRC|cd BLAS/SRC|;s|SRC/lib|BLAS/SRC/lib|'	\
 		${FILESDIR}/static.mk >> ${BUILD_WRKSRC}/CMakeFiles/blas.dir/build.make
 	(cd ${CONFIGURE_WRKSRC} && ${MAKE} -f BLAS/SRC/CMakeFiles/blas.dir/build.make build-static)
 .elif defined(CBLAS_SLAVEPORT)
 	${SED} -e 's|%%LIB%%|cblas|g;s|cd SRC|cd CBLAS/src|;s|SRC/lib|CBLAS/src/lib|'	\
 		${FILESDIR}/static.mk >> ${BUILD_WRKSRC}/src/CMakeFiles/cblas.dir/build.make
 	(cd ${CONFIGURE_WRKSRC} && ${MAKE} -f CBLAS/src/CMakeFiles/cblas.dir/build.make build-static)
 .elif defined(LAPACKE_SLAVEPORT)
 	${SED} -e 's|%%LIB%%|lapacke|g;s|cd SRC|cd LAPACKE|' ${FILESDIR}/static.mk	\
 		>> ${BUILD_WRKSRC}/CMakeFiles/lapacke.dir/build.make
 	(cd ${CONFIGURE_WRKSRC} && ${MAKE} -f LAPACKE/CMakeFiles/lapacke.dir/build.make build-static)
 .else # xlapack + Lapack + tmglib
 	${SED} -e 's|%%LIB%%|lapack|g' ${FILESDIR}/static.mk	\
 		>> ${BUILD_WRKSRC}/SRC/CMakeFiles/lapack.dir/build.make
 	(cd ${CONFIGURE_WRKSRC} && ${MAKE} -f SRC/CMakeFiles/lapack.dir/build.make build-static)
 	${SED} -e 's|%%LIB%%|tmglib|g;s|cd SRC|cd TESTING/MATGEN|;s|SRC/lib|TESTING/MATGEN/lib|'	\
 		${FILESDIR}/static.mk >> ${BUILD_WRKSRC}/TESTING/MATGEN/CMakeFiles/tmglib.dir/build.make
 	(cd ${BUILD_WRKSRC} && ${MAKE} -f TESTING/MATGEN/CMakeFiles/tmglib.dir/build.make build-static)
 .endif
 
 pre-su-install:
 .if !(defined(BLAS_SLAVEPORT) || defined(CBLAS_SLAVEPORT) || defined(XLAPACK_SLAVEPORT) || defined(LAPACKE_SLAVEPORT))
 	cd ${WRKDIR} && ${FIND} man/man3 -type f | ${GREP} -v Users_julie | \
 	tee ${WRKDIR}/manpages | ${SED} 's|$$|.gz|' >> ${TMPPLIST}
 	cd ${WRKDIR} && \
 	${XARGS} -J @ ${INSTALL_MAN} @ ${STAGEDIR}${MAN3PREFIX}/man/man3 < ${WRKDIR}/manpages
 .endif
 
 post-install:
 .if defined(BLAS_SLAVEPORT)
 	${INSTALL_DATA} ${CONFIGURE_WRKSRC}/BLAS/SRC/${BLASLIB} ${STAGEDIR}${PREFIX}/lib
 	${INSTALL_DATA} ${CONFIGURE_WRKSRC}/BLAS/blas.pc ${STAGEDIR}${PREFIX}/libdata/pkgconfig
 .elif defined(CBLAS_SLAVEPORT)
 	# Avoid conflict with OpenBLAS
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/cblas
 	${MV} ${STAGEDIR}${PREFIX}/include/*.h ${STAGEDIR}${PREFIX}/include/cblas/
 	${INSTALL_DATA} ${BUILD_WRKSRC}/src/${CBLASLIB} ${STAGEDIR}${PREFIX}/lib
 .elif defined(LAPACKE_SLAVEPORT)
 	# Avoid conflict with OpenBLAS
 	${MKDIR} ${STAGEDIR}${PREFIX}/include/lapacke
 	${MV} ${STAGEDIR}${PREFIX}/include/*.h ${STAGEDIR}${PREFIX}/include/lapacke/
 	${INSTALL_DATA} ${CONFIGURE_WRKSRC}/LAPACKE/${LAPACKELIB} ${STAGEDIR}${PREFIX}/lib
 .elif defined(XLAPACK_SLAVEPORT)
 	${INSTALL_DATA} ${BUILD_WRKSRC}/SRC/liblapack.a ${STAGEDIR}${PREFIX}/lib/libxlapack.a
 	${INSTALL_DATA} ${BUILD_WRKSRC}/TESTING/MATGEN/libtmglib.a	\
 		${STAGEDIR}${PREFIX}/lib/libxtmglib.a
 	${MV} ${STAGEDIR}${PREFIX}/lib/liblapack.so	\
 		${STAGEDIR}${PREFIX}/lib/libxlapack.so.${PORTVERSION}
 	${LN} -sf libxlapack.so.${PORTVERSION} ${STAGEDIR}${PREFIX}/lib/libxlapack.so
 	${LN} -sf libxlapack.so.${PORTVERSION}	\
 		${STAGEDIR}${PREFIX}/lib/libxlapack.so.${SVERSION}
 	${MV} ${STAGEDIR}${PREFIX}/lib/libtmglib.so	\
 		${STAGEDIR}${PREFIX}/lib/libxtmglib.so.${PORTVERSION}
 	${LN} -sf libxtmglib.so.${PORTVERSION} ${STAGEDIR}${PREFIX}/lib/libxtmglib.so
 	${LN} -sf libxtmglib.so.${PORTVERSION}	\
 		${STAGEDIR}${PREFIX}/lib/libxtmglib.so.${SVERSION}
 	${SED} -e 's|lapack|xlapack|g;s|LAPACK|XLAPACK|'		\
 		${STAGEDIR}${PREFIX}/libdata/pkgconfig/lapack.pc	\
 		> ${STAGEDIR}${PREFIX}/libdata/pkgconfig/xlapack.pc
 	${RM} ${STAGEDIR}${PREFIX}/libdata/pkgconfig/lapack.pc
 .else # Lapack
 	${INSTALL_DATA} ${BUILD_WRKSRC}/SRC/liblapack.a ${STAGEDIR}${PREFIX}/lib
 	${INSTALL_DATA} ${BUILD_WRKSRC}/TESTING/MATGEN/libtmglib.a ${STAGEDIR}${PREFIX}/lib
 .endif
 
 .include <bsd.port.post.mk>
diff --git a/math/lapack/distinfo b/math/lapack/distinfo
index 3d099753d270..6d36ccb5ea6b 100644
--- a/math/lapack/distinfo
+++ b/math/lapack/distinfo
@@ -1,5 +1,5 @@
-TIMESTAMP = 1668549742
-SHA256 (lapack-3.11.0/v3.11.tar.gz) = 5a5b3bac27709d8c66286b7a0d1d7bf2d7170ec189a1a756fdf812c97aa7fd10
-SIZE (lapack-3.11.0/v3.11.tar.gz) = 7723909
-SHA256 (lapack-3.11.0/manpages.tgz) = 6e3aff37f95c6a5af48b9395af2ade102213ad391d1cbe1a1638c815925950c2
-SIZE (lapack-3.11.0/manpages.tgz) = 2478363
+TIMESTAMP = 1703076157
+SHA256 (lapack-3.12.0/v3.12.0.tar.gz) = eac9570f8e0ad6f30ce4b963f4f033f0f643e7c3912fc9ee6cd99120675ad48b
+SIZE (lapack-3.12.0/v3.12.0.tar.gz) = 7933607
+SHA256 (lapack-3.12.0/manpages.tgz) = 342db80461de2c0f10848a3f338ee6e7511b417f459600a7e75ad4dc4bf05f5a
+SIZE (lapack-3.12.0/manpages.tgz) = 5396817
diff --git a/math/lapack/files/patch-CMakeLists.txt b/math/lapack/files/patch-CMakeLists.txt
new file mode 100644
index 000000000000..db50ddd14eee
--- /dev/null
+++ b/math/lapack/files/patch-CMakeLists.txt
@@ -0,0 +1,10 @@
+--- CMakeLists.txt.orig	2023-11-24 20:41:15 UTC
++++ CMakeLists.txt
+@@ -223,6 +223,7 @@ if(BLAS_LIBRARIES)
+ 
+ # Check the usage of the user provided BLAS libraries
+ if(BLAS_LIBRARIES)
++  enable_language(Fortran)
+   include(CheckFortranFunctionExists)
+   set(CMAKE_REQUIRED_LIBRARIES ${BLAS_LIBRARIES})
+   CHECK_FORTRAN_FUNCTION_EXISTS("dgemm" BLAS_FOUND)
diff --git a/math/lapack/pkg-plist b/math/lapack/pkg-plist
index a65522115702..11d882f39734 100644
--- a/math/lapack/pkg-plist
+++ b/math/lapack/pkg-plist
@@ -1,53 +1,54 @@
 %%CBLAS%%include/cblas/cblas.h
+%%CBLAS%%include/cblas/cblas_64.h
 %%CBLAS%%include/cblas/cblas_f77.h
 %%CBLAS%%include/cblas/cblas_mangling.h
 %%LAPACKE%%include/lapacke/lapack.h
 %%LAPACKE%%include/lapacke/lapacke.h
 %%LAPACKE%%include/lapacke/lapacke_config.h
 %%LAPACKE%%include/lapacke/lapacke_mangling.h
 %%LAPACKE%%include/lapacke/lapacke_utils.h
 %%BLAS%%lib/libblas.a
 %%BLAS%%lib/libblas.so
 %%BLAS%%lib/libblas.so.%%SVERSION%%
 %%BLAS%%lib/libblas.so.%%VER%%
 %%CBLAS%%lib/cmake/cblas-%%VER%%/cblas-config-version.cmake
 %%CBLAS%%lib/cmake/cblas-%%VER%%/cblas-config.cmake
 %%CBLAS%%lib/cmake/cblas-%%VER%%/cblas-targets-%%CMAKE_BUILD_TYPE%%.cmake
 %%CBLAS%%lib/cmake/cblas-%%VER%%/cblas-targets.cmake
 %%LAPACK%%lib/cmake/lapack-%%VER%%/lapack-config-version.cmake
 %%LAPACK%%lib/cmake/lapack-%%VER%%/lapack-config.cmake
 %%LAPACK%%lib/cmake/lapack-%%VER%%/lapack-targets-%%CMAKE_BUILD_TYPE%%.cmake
 %%LAPACK%%lib/cmake/lapack-%%VER%%/lapack-targets.cmake
 %%LAPACKE%%lib/cmake/lapacke-%%VER%%/lapacke-config-version.cmake
 %%LAPACKE%%lib/cmake/lapacke-%%VER%%/lapacke-config.cmake
 %%LAPACKE%%lib/cmake/lapacke-%%VER%%/lapacke-targets-%%CMAKE_BUILD_TYPE%%.cmake
 %%LAPACKE%%lib/cmake/lapacke-%%VER%%/lapacke-targets.cmake
 %%CBLAS%%lib/libcblas.a
 %%CBLAS%%lib/libcblas.so
 %%CBLAS%%lib/libcblas.so.%%SVERSION%%
 %%CBLAS%%lib/libcblas.so.%%VER%%
 %%LAPACK%%lib/liblapack.a
 %%LAPACK%%lib/liblapack.so
 %%LAPACK%%lib/liblapack.so.%%SVERSION%%
 %%LAPACK%%lib/liblapack.so.%%VER%%
 %%LAPACK%%lib/libtmglib.a
 %%LAPACK%%lib/libtmglib.so
 %%LAPACK%%lib/libtmglib.so.%%SVERSION%%
 %%LAPACK%%lib/libtmglib.so.%%VER%%
 %%XLAPACK%%lib/libxlapack.a
 %%XLAPACK%%lib/libxlapack.so
 %%XLAPACK%%lib/libxlapack.so.%%SVERSION%%
 %%XLAPACK%%lib/libxlapack.so.%%VER%%
 %%XLAPACK%%lib/libxtmglib.a
 %%XLAPACK%%lib/libxtmglib.so
 %%XLAPACK%%lib/libxtmglib.so.%%SVERSION%%
 %%XLAPACK%%lib/libxtmglib.so.%%VER%%
 %%LAPACKE%%lib/liblapacke.a
 %%LAPACKE%%lib/liblapacke.so
 %%LAPACKE%%lib/liblapacke.so.%%SVERSION%%
 %%LAPACKE%%lib/liblapacke.so.%%VER%%
 %%BLAS%%libdata/pkgconfig/blas.pc
 %%CBLAS%%libdata/pkgconfig/cblas.pc
 %%LAPACK%%libdata/pkgconfig/lapack.pc
 %%LAPACKE%%libdata/pkgconfig/lapacke.pc
 %%XLAPACK%%libdata/pkgconfig/xlapack.pc