sci-libs/mumps: new revision to fix more underlinking.

When building without USE=mpi, the various lib*mumps libraries use
LAPACK symbols without actually linking to liblapack. There are
already a bunch of hacks in the mumps ebuild to work around these
issues, so all I've done is add one more. As a simple test case,
you can try to run the test suite for sci-libs/coinor-clp with
USE="mumps metis", which now works.

Closes: https://bugs.gentoo.org/777840
Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

1 files changed, 208 insertions, 0 deletions

diff --git a/sci-libs/mumps/mumps-5.3.5-r1.ebuild b/sci-libs/mumps/mumps-5.3.5-r1.ebuild
new file mode 100644
index 000000000000..8f970661e820
--- /dev/null
+++ b/sci-libs/mumps/mumps-5.3.5-r1.ebuild
@@ -0,0 +1,208 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit fortran-2 flag-o-matic multilib toolchain-funcs
+
+MYP=MUMPS_${PV}
+
+DESCRIPTION="MUltifrontal Massively Parallel sparse direct matrix Solver"
+HOMEPAGE="http://mumps.enseeiht.fr/"
+SRC_URI="http://mumps.enseeiht.fr/${MYP}.tar.gz"
+S="${WORKDIR}/${MYP}"
+
+LICENSE="public-domain"
+SLOT="0"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="doc examples metis mpi +scotch static-libs"
+
+BDEPEND="virtual/pkgconfig"
+RDEPEND="
+	virtual/blas
+	metis? (
+		>=sci-libs/metis-5
+		mpi? ( >=sci-libs/parmetis-4 )
+	)
+	mpi? ( sci-libs/scalapack )
+	!mpi? ( virtual/lapack )
+	scotch? ( >=sci-libs/scotch-6.0.1:=[mpi=] )
+"
+DEPEND="${RDEPEND}"
+
+_get_version_component_count() {
+	local cnt=( $(ver_rs 1- ' ') )
+	echo ${#cnt[@]} || die
+}
+
+static_to_shared() {
+	local libstatic=${1}
+	shift
+	local libname=$(basename ${libstatic%.a})
+	local soname=${libname}$(get_libname $(ver_cut 1-2))
+	local libdir=$(dirname ${libstatic})
+
+	einfo "Making ${soname} from ${libstatic}"
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		${LINK:-$(tc-getCC)} ${LDFLAGS}  \
+			-dynamiclib -install_name "${EPREFIX}"/usr/lib/"${soname}" \
+			-Wl,-all_load -Wl,${libstatic} \
+			"$@" -o ${libdir}/${soname} || die "${soname} failed"
+	else
+		${LINK:-$(tc-getCC)} ${LDFLAGS}  \
+			-shared -Wl,-soname=${soname} \
+			-Wl,--whole-archive ${libstatic} -Wl,--no-whole-archive \
+			"$@" -o ${libdir}/${soname} || die "${soname} failed"
+
+		if [[ $(_get_version_component_count) -ge 1 ]] ; then
+			ln -s ${soname} ${libdir}/${libname}$(get_libname $(ver_cut 1)) || die
+		fi
+
+		ln -s ${soname} ${libdir}/${libname}$(get_libname) || die
+	fi
+}
+
+src_prepare() {
+	# workaround for gcc10 (bug #743442)
+	append-fflags $(test-flags-FC -fallow-argument-mismatch)
+
+	sed -e "s;^\(CC\s*=\).*;\1$(tc-getCC);" \
+		-e "s;^\(FC\s*=\).*;\1$(tc-getFC);" \
+		-e "s;^\(FL\s*=\).*;\1$(tc-getFC);" \
+		-e "s;^\(AR\s*=\).*;\1$(tc-getAR) cr ;" \
+		-e "s;^\(RANLIB\s*=\).*;\1$(tc-getRANLIB);" \
+		-e "s;^\(LIBBLAS\s*=\).*;\1$($(tc-getPKG_CONFIG) --libs blas);" \
+		-e "s;^\(INCPAR\s*=\).*;\1;" \
+		-e 's;^\(LIBPAR\s*=\).*;\1$(SCALAP);' \
+		-e "s;^\(OPTF\s*=\).*;\1${FFLAGS} -DALLOW_NON_INIT \$(PIC);" \
+		-e "s;^\(OPTC\s*=\).*;\1${CFLAGS} \$(PIC);" \
+		-e "s;^\(OPTL\s*=\).*;\1${LDFLAGS};" \
+		Make.inc/Makefile.inc.generic > Makefile.inc || die
+	# fixed a missing copy of libseq to libdir
+
+	default
+}
+
+src_configure() {
+	# We abuse LIBADD here to work around the fact that MUMPS is criminally
+	# underlinked.
+	LIBADD="$($(tc-getPKG_CONFIG) --libs blas) -Llib -lpord"
+	local ord="-Dpord"
+
+	if use metis && use mpi; then
+		sed -i \
+			-e "s;#\s*\(LMETIS\s*=\).*;\1$($(tc-getPKG_CONFIG) --libs parmetis);" \
+			-e "s;#\s*\(IMETIS\s*=\).*;\1$($(tc-getPKG_CONFIG) --cflags parmetis);" \
+			Makefile.inc || die
+		LIBADD="${LIBADD} $($(tc-getPKG_CONFIG) --libs parmetis)"
+		ord="${ord} -Dparmetis"
+	elif use metis; then
+		sed -i \
+			-e "s;#\s*\(LMETIS\s*=\).*;\1$($(tc-getPKG_CONFIG) --libs metis);" \
+			-e "s;#\s*\(IMETIS\s*=\).*;\1$($(tc-getPKG_CONFIG) --cflags metis);" \
+			Makefile.inc || die
+		LIBADD="${LIBADD} $($(tc-getPKG_CONFIG) --libs metis)"
+		ord="${ord} -Dmetis"
+	fi
+	if use scotch && use mpi; then
+		sed -i \
+			-e "s;#\s*\(LSCOTCH\s*=\).*;\1-lptesmumps -lptscotch -lptscotcherr;" \
+			-e "s;#\s*\(ISCOTCH\s*=\).*;\1-I${ESYSROOT}/usr/include/scotch;" \
+			Makefile.inc || die
+		LIBADD="${LIBADD} -lptesmumps -lptscotch -lptscotcherr"
+		ord="${ord} -Dptscotch"
+	elif use scotch; then
+		sed -i \
+			-e "s;#\s*\(LSCOTCH\s*=\).*;\1-lesmumps -lscotch -lscotcherr;" \
+			-e "s;#\s*\(ISCOTCH\s*=\).*;\1-I${ESYSROOT}/usr/include/scotch;" \
+			Makefile.inc || die
+		LIBADD="${LIBADD} -lesmumps -lscotch -lscotcherr"
+		ord="${ord} -Dscotch"
+	fi
+	if use mpi; then
+		sed -i \
+			-e "s;^\(CC\s*=\).*;\1mpicc;" \
+			-e "s;^\(FC\s*=\).*;\1mpif90;" \
+			-e "s;^\(FL\s*=\).*;\1mpif90;" \
+			-e "s;^\(SCALAP\s*=\).*;\1$($(tc-getPKG_CONFIG) --libs scalapack);" \
+			Makefile.inc || die
+		export LINK=mpif90
+		LIBADD="${LIBADD} $($(tc-getPKG_CONFIG) --libs scalapack)"
+	else
+		sed -i \
+			-e 's;-Llibseq;-L$(topdir)/libseq;' \
+			-e 's;PAR);SEQ);g' \
+			-e "s;^\(SCALAP\s*=\).*;\1;" \
+			-e 's;^LIBSEQNEEDED =;LIBSEQNEEDED = libseqneeded;g' \
+			Makefile.inc || die
+		LIBADD="${LIBADD} $($(tc-getPKG_CONFIG) --libs lapack)"
+		export LINK="$(tc-getFC)"
+	fi
+	sed -i -e "s;^\s*\(ORDERINGSF\s*=\).*;\1 ${ord};" Makefile.inc || die
+}
+
+src_compile() {
+	# Workaround #462602
+	export FAKEROOTKEY=1
+
+	emake alllib PIC="-fPIC"
+	if ! use mpi; then
+		#$(tc-getAR) crs lib/libmumps_common.a libseq/*.o || die
+		LIBADD+=" -Llibseq -lmpiseq"
+		static_to_shared libseq/libmpiseq.a
+	fi
+
+	static_to_shared lib/libpord.a ${LIBADD}
+	static_to_shared lib/libmumps_common.a ${LIBADD}
+
+	local i
+	for i in c d s z; do
+		static_to_shared lib/lib${i}mumps.a -Llib -lmumps_common ${LIBADD}
+	done
+
+	if use static-libs; then
+		emake clean
+		emake alllib
+	fi
+}
+
+src_test() {
+	emake all
+
+	local dotest
+	if use mpi; then
+		dotest="mpirun -np 2"
+	else
+		export LD_LIBRARY_PATH="${S}/libseq:${LD_LIBRARY_PATH}"
+	fi
+
+	cd examples
+	${dotest} ./ssimpletest < input_simpletest_real || die
+	${dotest} ./dsimpletest < input_simpletest_real || die
+	${dotest} ./csimpletest < input_simpletest_cmplx || die
+	${dotest} ./zsimpletest < input_simpletest_cmplx || die
+	einfo "The solutions should be close to (1,2,3,4,5)"
+	${dotest} ./c_example || die
+	einfo "The solution should be close to (1,2)"
+	emake clean
+}
+
+src_install() {
+	dolib.so lib/lib*$(get_libname)*
+	use static-libs && dolib.a lib/lib*.a
+	insinto /usr
+
+	doins -r include
+	if ! use mpi; then
+		dolib.so libseq/lib*$(get_libname)*
+		insinto /usr/include/mpiseq
+		doins libseq/*.h
+		use static-libs && dolib.a libseq/libmpiseq.a
+	fi
+
+	dodoc README ChangeLog VERSION
+	use doc && dodoc doc/*.pdf
+	if use examples; then
+		dodoc -r examples
+	fi
+}