Adding metadata

5 files changed, 506 insertions, 54 deletions

diff --git a/sci-libs/htslib/Manifest b/sci-libs/htslib/Manifest
index fce2951cfeb6..11149f73b75a 100644
--- a/sci-libs/htslib/Manifest
+++ b/sci-libs/htslib/Manifest
@@ -1,2 +1 @@
-DIST htslib-1.20.tar.bz2 4779028 BLAKE2B def7a135f37a4c7a167ada554b92b0e0107ab3dcbdab69abdea387035159f40fb183477275c137b0d786fdfc7264303898f98c54acb1714f9b7cb21e22612143 SHA512 a156f5c895fdae77f976f463a2d4d1111dc056893ef45b7e9cf62e9115898bc8cb47465bb1779e534c26943df478892385d44646e97bd0fa67fceb83ef7a649b
 DIST htslib-1.23.1.tar.bz2 4987046 BLAKE2B bb8beb6ce435bb8a940c70edd830c54c90a626de553ddfb159a68cd9fca97a608ee2a4b3ae820b52730bf3be2fd0b8e1b1776f005bf18a39c6237df0451448a8 SHA512 abe3c7cf37c2300b5d2b82f9f0a88cb1b29f289aad829d2c1c7e39ca2ddafd9fd43efea3301a7e1fd1be1b91e5fbc32511961bb20f2aa1a58729ac84603d59f0
diff --git a/sci-libs/htslib/htslib-1.20.ebuild b/sci-libs/htslib/htslib-1.20.ebuild
deleted file mode 100644
index 43627c7821af..000000000000
--- a/sci-libs/htslib/htslib-1.20.ebuild
+++ /dev/null
@@ -1,52 +0,0 @@
-# Copyright 1999-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit toolchain-funcs
-
-DESCRIPTION="C library for high-throughput sequencing data formats"
-HOMEPAGE="http://www.htslib.org/"
-SRC_URI="https://github.com/samtools/${PN}/releases/download/${PV}/${P}.tar.bz2"
-
-LICENSE="MIT"
-SLOT="0/3"
-KEYWORDS="amd64 ~x86"
-IUSE="+bzip2 curl +lzma"
-
-RDEPEND="
-	virtual/zlib:=
-	bzip2? ( app-arch/bzip2 )
-	curl? ( net-misc/curl )
-	lzma? ( app-arch/xz-utils )"
-DEPEND="${RDEPEND}"
-
-src_prepare() {
-	default
-
-	# upstream injects LDFLAGS into the .pc file,
-	# which is a big nono for QA
-	sed -e '/^\(static_l\|Libs.private\|Requires.private\)/d' \
-		-i htslib.pc.in || die
-}
-
-src_configure() {
-	econf \
-		--disable-gcs \
-		--disable-plugins \
-		--disable-s3 \
-		$(use_enable bzip2 bz2) \
-		$(use_enable curl libcurl) \
-		$(use_enable lzma)
-}
-
-src_compile() {
-	emake AR="$(tc-getAR)"
-}
-
-src_install() {
-	default
-
-	# doesn't use libtool, can't disable static libraries
-	find "${ED}" -name '*.a' -delete || die
-}
diff --git a/sci-libs/htslib/htslib-1.23.1.ebuild b/sci-libs/htslib/htslib-1.23.1.ebuild
index 42b9693c70b2..7ebb54a4348a 100644
--- a/sci-libs/htslib/htslib-1.23.1.ebuild
+++ b/sci-libs/htslib/htslib-1.23.1.ebuild
@@ -11,7 +11,7 @@ SRC_URI="https://github.com/samtools/${PN}/releases/download/${PV}/${P}.tar.bz2"
 
 LICENSE="MIT"
 SLOT="0/3"
-KEYWORDS="~amd64 ~x86"
+KEYWORDS="amd64 ~x86"
 IUSE="+bzip2 curl +lzma"
 
 RDEPEND="
diff --git a/sci-libs/trilinos/trilinos-17.0.0-r1.ebuild b/sci-libs/trilinos/trilinos-17.0.0-r1.ebuild
new file mode 100644
index 000000000000..ecd197c64ef3
--- /dev/null
+++ b/sci-libs/trilinos/trilinos-17.0.0-r1.ebuild
@@ -0,0 +1,252 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_MAKEFILE_GENERATOR=emake
+inherit cmake flag-o-matic toolchain-funcs
+
+DESCRIPTION="Scientific library collection for large scale problems"
+HOMEPAGE="http://trilinos.sandia.gov/"
+MY_PV="${PV//\./-}"
+PATCHSET="r0"
+SRC_URI="https://github.com/${PN}/Trilinos/archive/${PN}-release-${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+S="${WORKDIR}/Trilinos-${PN}-release-${MY_PV}"
+
+LICENSE="BSD LGPL-2.1"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~x86"
+
+IUSE="
+	adolc all-packages arprec clp cuda eigen glpk gtest hdf5 hwloc hypre
+	matio metis mkl mumps netcdf openmp petsc qd scalapack scotch sparse
+	superlu taucs tbb test threads tvmet yaml zlib X
+"
+
+# TODO: fix export cmake function for tests
+RESTRICT="test"
+
+RDEPEND="
+	>=dev-cpp/kokkos-4.5.1:=[cuda(-)=,openmp=]
+	dev-libs/boost:=
+	sys-libs/binutils-libs:=
+	virtual/blas
+	virtual/lapack
+	virtual/mpi
+	adolc? ( sci-libs/adolc )
+	arprec? ( sci-libs/arprec )
+	clp? ( sci-libs/coinor-clp )
+	cuda? ( dev-util/nvidia-cuda-toolkit:= )
+	eigen? ( dev-cpp/eigen:= )
+	glpk? ( sci-mathematics/glpk )
+	gtest? ( dev-cpp/gtest )
+	hdf5? ( sci-libs/hdf5:=[mpi] )
+	hypre? ( sci-libs/hypre:= )
+	hwloc? ( sys-apps/hwloc:= )
+	matio? ( sci-libs/matio )
+	mkl? ( sci-libs/mkl )
+	metis? ( sci-libs/metis )
+	mumps? ( sci-libs/mumps )
+	netcdf? ( sci-libs/netcdf:= )
+	petsc? ( sci-mathematics/petsc )
+	qd? ( sci-libs/qd )
+	scalapack? ( sci-libs/scalapack )
+	scotch? ( sci-libs/scotch:= )
+	sparse? ( sci-libs/cxsparse sci-libs/umfpack )
+	superlu? ( <sci-libs/superlu-5.0.0:= )
+	taucs? ( sci-libs/taucs )
+	tbb? ( dev-cpp/tbb:= )
+	tvmet? ( dev-libs/tvmet )
+	yaml? ( dev-cpp/yaml-cpp:= )
+	zlib? ( virtual/zlib:= )
+	X? ( x11-libs/libX11 )"
+DEPEND="${RDEPEND}
+	virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}/${P}-drop_boost_system.patch"
+	)
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+trilinos_conf() {
+	local dirs libs d
+	for d in $($(tc-getPKG_CONFIG) --libs-only-L $1); do
+		dirs="${dirs};${d:2}"
+	done
+	[[ -n ${dirs} ]] && mycmakeargs+=( "-D${2}_LIBRARY_DIRS=${dirs:1}" )
+	for d in $($(tc-getPKG_CONFIG) --libs-only-l $1); do
+		libs="${libs};${d:2}"
+	done
+	[[ -n ${libs} ]] && mycmakeargs+=( "-D${2}_LIBRARY_NAMES=${libs:1}" )
+	dirs=""
+	for d in $($(tc-getPKG_CONFIG) --cflags-only-I $1); do
+		dirs="${dirs};${d:2}"
+	done
+	[[ -n ${dirs} ]] && mycmakeargs+=( "-D${2}_INCLUDE_DIRS=${dirs:1}" )
+}
+
+src_configure() {
+	# Trilinos is a massive C++ project. Fixing all of the lto warnings and
+	# making safe for lto compilation/linking will be a massive
+	# undertaking. Thus, simply filter lto flags. bug #862987
+	filter-lto
+
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
+		-DCMAKE_SKIP_RPATH=ON
+		-DCMAKE_SKIP_INSTALL_RPATH=ON
+		-DTrilinos_INSTALL_INCLUDE_DIR="${EPREFIX}/usr/include/trilinos"
+		-DTrilinos_INSTALL_LIB_DIR="${EPREFIX}/usr/$(get_libdir)/trilinos"
+		-DTrilinos_ENABLE_ALL_PACKAGES="$(usex all-packages)"
+		-DTrilinos_ENABLE_PyTrilinos=OFF
+		-DTrilinos_ENABLE_Amesos=ON
+		-DTrilinos_ENABLE_AztecOO=ON
+		-DTrilinos_ENABLE_EpetraExt=ON
+		-DTrilinos_ENABLE_Epetra=ON
+		-DTrilinos_ENABLE_Ifpack=ON
+		-DTrilinos_ENABLE_ML=ON
+		-DTrilinos_ENABLE_MueLu=ON
+		-DTrilinos_ENABLE_OpenMP="$(usex openmp)"
+		-DTrilinos_ENABLE_ROL=ON
+		-DTrilinos_ENABLE_Sacado=ON
+		-DTrilinos_ENABLE_Teuchos=ON
+		-DTrilinos_ENABLE_Tpetra=ON
+		-DTrilinos_ENABLE_Zoltan=ON
+		-DTrilinos_ENABLE_TESTS="$(usex test)"
+		-DTPL_ENABLE_ADOLC="$(usex adolc)"
+		-DTPL_ENABLE_AMD="$(usex sparse)"
+		-DTPL_ENABLE_ARPREC="$(usex arprec)"
+		-DTPL_ENABLE_BinUtils=ON
+		-DTPL_ENABLE_BLACS="$(usex scalapack)"
+		-DTPL_ENABLE_BLAS=ON
+		-DTPL_ENABLE_BoostLib=ON
+		-DTPL_ENABLE_Boost=ON
+		-DTPL_ENABLE_Clp="$(usex clp)"
+		-DTPL_ENABLE_CSparse="$(usex sparse)"
+		-DTPL_ENABLE_CUDA="$(usex cuda)"
+		-DTPL_ENABLE_CUSPARSE="$(usex cuda)"
+		-DTPL_ENABLE_Eigen="$(usex eigen)"
+		-DTPL_ENABLE_GLPK="$(usex glpk)"
+		-DTPL_ENABLE_gtest="$(usex gtest)"
+		-DTPL_ENABLE_HDF5="$(usex hdf5)"
+		-DTPL_ENABLE_HWLOC="$(usex hwloc)"
+		-DTPL_ENABLE_HYPRE="$(usex hypre)"
+		-DTPL_ENABLE_Kokkos=ON
+		# Tpetra declares a dependency on kokkos-4.5.1, which we have in
+		# our version constraints. But the logic in the build system also
+		# unconditionally enforces that no newer version is installed.
+		# Thus, disable this check:
+		-DTpetra_IGNORE_KOKKOS_COMPATIBILITY=ON
+		# Enable support for 32bit ordinals which is required for some
+		# dependencies such as sci-libs/dealii
+		-DTpetra_INST_INT_INT=ON
+		-DTPL_ENABLE_LAPACK=ON
+		-DTPL_ENABLE_Matio="$(usex matio)"
+		-DTPL_ENABLE_METIS="$(usex metis)"
+		-DTPL_ENABLE_MKL="$(usex mkl)"
+		-DTPL_ENABLE_MPI=ON
+		-DTPL_ENABLE_MUMPS="$(usex mumps)"
+		-DTPL_ENABLE_Netcdf="$(usex netcdf)"
+		-DTPL_ENABLE_PARDISO_MKL="$(usex mkl)"
+		-DTPL_ENABLE_PETSC="$(usex petsc)"
+		-DTPL_ENABLE_Pthread="$(usex threads)"
+		-DTPL_ENABLE_QD="$(usex qd)"
+		-DTPL_ENABLE_SCALAPACK="$(usex scalapack)"
+		-DTPL_ENABLE_Scotch="$(usex scotch)"
+		-DTPL_ENABLE_SuperLU="$(usex superlu)"
+		-DTPL_ENABLE_TAUCS="$(usex taucs)"
+		-DTPL_ENABLE_TBB="$(usex tbb)"
+		-DTPL_ENABLE_TVMET="$(usex tvmet)"
+		-DTPL_ENABLE_UMFPACK="$(usex sparse)"
+		-DTPL_ENABLE_X11="$(usex X)"
+		-DTPL_ENABLE_yamlcpp="$(usex yaml)"
+		-DTPL_ENABLE_Zlib="$(usex zlib)"
+	)
+
+	#
+	# Make sure some critical configuration options are always set
+	# correctly independently of what Trilinos dependency resolver thinks
+	# it should be doing.
+	#
+	local mycmakeargs+=(
+		-DAmesos2_ENABLE_LAPACK=ON
+		-DAmesos2_ENABLE_MUMPS=OFF
+		-DTpetra_INST_SERIAL=ON
+	)
+
+	use eigen && \
+		mycmakeargs+=(
+		-DEigen_INCLUDE_DIRS="${EPREFIX}/usr/include/eigen3"
+	)
+	use hypre && \
+		mycmakeargs+=(
+		-DHYPRE_INCLUDE_DIRS="${EPREFIX}/usr/include/hypre"
+	)
+	use scotch && \
+		mycmakeargs+=(
+		-DScotch_INCLUDE_DIRS="${EPREFIX}/usr/include/scotch"
+	)
+
+	# cxsparse is a rewrite of csparse + extras
+	use sparse && \
+		mycmakeargs+=(
+		-DCSparse_LIBRARY_NAMES="cxsparse"
+	)
+
+	# mandatory blas and lapack
+	trilinos_conf blas BLAS
+	trilinos_conf lapack LAPACK
+	use superlu && trilinos_conf superlu SuperLU
+	use metis && trilinos_conf metis METIS
+
+	# blacs library is included in scalapack these days
+	if use scalapack; then
+		trilinos_conf scalapack SCALAPACK
+		mycmakeargs+=(
+			-DBLACS_LIBRARY_NAMES="scalapack"
+			-DBLACS_INCLUDE_DIRS="${EPREFIX}/usr/include/blacs"
+		)
+	fi
+
+	#
+	# Make sure we use the compiler wrappers in order to build trilinos.
+	#
+	[ ! -z "${CC}"] && export OMPI_CC="${CC}" MPICH_CC="${CC}" && tc-export OMPI_CC MPICH_CC
+	[ ! -z "${CXX}"] && export OMPI_CXX="${CXX}" MPICH_CXX="${CXX}" && tc-export OMPI_CXX MPICH_CXX
+	export CC=mpicc CXX=mpicxx && tc-export CC CXX
+
+	# Trilinos needs a custom build type:
+	local CMAKE_BUILD_TYPE=Release
+
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+
+	# Move the cmake directory to the right location:
+	mkdir -p "${ED}/usr/$(get_libdir)"/cmake
+	mv "${ED}/usr/$(get_libdir)"/trilinos/cmake/* "${ED}/usr/$(get_libdir)"/cmake || die "mv failed"
+	# Fix up include paths:
+	sed -i -e 's#external_packages#trilinos/external_packages#g' \
+		"${ED}/usr/$(get_libdir)"/cmake/**/*.cmake || die "sed failed"
+	rmdir "${ED}/usr/$(get_libdir)/trilinos/cmake" || die "rmdir failed"
+
+	# Register $(get_libdir)/trilinos in LDPATH so that the dynamic linker
+	# has a chance to pick up the libraries, also add Trilinos' binaries ot
+	# the PATH environment variable.
+	cat >> "${T}"/99trilinos <<- EOF
+	LDPATH="${EPREFIX}/usr/$(get_libdir)/trilinos"
+	PATH="${EPREFIX}/usr/$(get_libdir)/trilinos/bin"
+	EOF
+	doenvd "${T}"/99trilinos
+}
diff --git a/sci-libs/trilinos/trilinos-17.1.0-r1.ebuild b/sci-libs/trilinos/trilinos-17.1.0-r1.ebuild
new file mode 100644
index 000000000000..26095ae6fffe
--- /dev/null
+++ b/sci-libs/trilinos/trilinos-17.1.0-r1.ebuild
@@ -0,0 +1,253 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+CMAKE_MAKEFILE_GENERATOR=emake
+inherit cmake flag-o-matic toolchain-funcs
+
+DESCRIPTION="Scientific library collection for large scale problems"
+HOMEPAGE="http://trilinos.sandia.gov/"
+MY_PV="${PV//\./-}"
+PATCHSET="r0"
+SRC_URI="https://github.com/${PN}/Trilinos/archive/${PN}-release-${MY_PV}.tar.gz -> ${P}.tar.gz"
+
+S="${WORKDIR}/Trilinos-${PN}-release-${MY_PV}"
+
+LICENSE="BSD LGPL-2.1"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~x86"
+
+IUSE="
+	adolc all-packages arprec clp cuda eigen glpk gtest hdf5 hwloc hypre
+	matio metis mkl mumps netcdf openmp petsc qd scalapack scotch sparse
+	superlu taucs tbb test threads tvmet yaml zlib X
+"
+
+# TODO: fix export cmake function for tests
+RESTRICT="test"
+
+RDEPEND="
+	>=dev-cpp/kokkos-5.1.1:=[cuda(-)=,openmp=]
+	dev-libs/boost:=
+	sys-libs/binutils-libs:=
+	virtual/blas
+	virtual/lapack
+	virtual/mpi
+	adolc? ( sci-libs/adolc )
+	arprec? ( sci-libs/arprec )
+	clp? ( sci-libs/coinor-clp )
+	cuda? ( >=dev-util/nvidia-cuda-toolkit-3.2 )
+	eigen? ( dev-cpp/eigen:3 )
+	glpk? ( sci-mathematics/glpk )
+	gtest? ( dev-cpp/gtest )
+	hdf5? ( sci-libs/hdf5:=[mpi] )
+	hypre? ( sci-libs/hypre:= )
+	hwloc? ( sys-apps/hwloc:= )
+	matio? ( sci-libs/matio )
+	mkl? ( sci-libs/mkl )
+	metis? ( sci-libs/metis )
+	mumps? ( sci-libs/mumps )
+	netcdf? ( sci-libs/netcdf:= )
+	petsc? ( sci-mathematics/petsc )
+	qd? ( sci-libs/qd )
+	scalapack? ( sci-libs/scalapack )
+	scotch? ( sci-libs/scotch:= )
+	sparse? ( sci-libs/cxsparse sci-libs/umfpack )
+	superlu? ( <sci-libs/superlu-5.0.0:= )
+	taucs? ( sci-libs/taucs )
+	tbb? ( dev-cpp/tbb:= )
+	tvmet? ( dev-libs/tvmet )
+	yaml? ( dev-cpp/yaml-cpp:= )
+	zlib? ( virtual/zlib:= )
+	X? ( x11-libs/libX11 )"
+DEPEND="${RDEPEND}
+	virtual/pkgconfig"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-17.0.0-drop_boost_system.patch"
+	"${FILESDIR}/${P}-fix_compilation.patch"
+	)
+
+pkg_pretend() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+pkg_setup() {
+	[[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp
+}
+
+trilinos_conf() {
+	local dirs libs d
+	for d in $($(tc-getPKG_CONFIG) --libs-only-L $1); do
+		dirs="${dirs};${d:2}"
+	done
+	[[ -n ${dirs} ]] && mycmakeargs+=( "-D${2}_LIBRARY_DIRS=${dirs:1}" )
+	for d in $($(tc-getPKG_CONFIG) --libs-only-l $1); do
+		libs="${libs};${d:2}"
+	done
+	[[ -n ${libs} ]] && mycmakeargs+=( "-D${2}_LIBRARY_NAMES=${libs:1}" )
+	dirs=""
+	for d in $($(tc-getPKG_CONFIG) --cflags-only-I $1); do
+		dirs="${dirs};${d:2}"
+	done
+	[[ -n ${dirs} ]] && mycmakeargs+=( "-D${2}_INCLUDE_DIRS=${dirs:1}" )
+}
+
+src_configure() {
+	# Trilinos is a massive C++ project. Fixing all of the lto warnings and
+	# making safe for lto compilation/linking will be a massive
+	# undertaking. Thus, simply filter lto flags. bug #862987
+	filter-lto
+
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
+		-DCMAKE_SKIP_RPATH=ON
+		-DCMAKE_SKIP_INSTALL_RPATH=ON
+		-DTrilinos_INSTALL_INCLUDE_DIR="${EPREFIX}/usr/include/trilinos"
+		-DTrilinos_INSTALL_LIB_DIR="${EPREFIX}/usr/$(get_libdir)/trilinos"
+		-DTrilinos_ENABLE_ALL_PACKAGES="$(usex all-packages)"
+		-DTrilinos_ENABLE_PyTrilinos=OFF
+		-DTrilinos_ENABLE_Amesos=ON
+		-DTrilinos_ENABLE_AztecOO=ON
+		-DTrilinos_ENABLE_EpetraExt=ON
+		-DTrilinos_ENABLE_Epetra=ON
+		-DTrilinos_ENABLE_Ifpack=ON
+		-DTrilinos_ENABLE_ML=ON
+		-DTrilinos_ENABLE_MueLu=ON
+		-DTrilinos_ENABLE_OpenMP="$(usex openmp)"
+		-DTrilinos_ENABLE_ROL=ON
+		-DTrilinos_ENABLE_Sacado=ON
+		-DTrilinos_ENABLE_Teuchos=ON
+		-DTrilinos_ENABLE_Tpetra=ON
+		-DTrilinos_ENABLE_Zoltan=ON
+		-DTrilinos_ENABLE_TESTS="$(usex test)"
+		-DTPL_ENABLE_ADOLC="$(usex adolc)"
+		-DTPL_ENABLE_AMD="$(usex sparse)"
+		-DTPL_ENABLE_ARPREC="$(usex arprec)"
+		-DTPL_ENABLE_BinUtils=ON
+		-DTPL_ENABLE_BLACS="$(usex scalapack)"
+		-DTPL_ENABLE_BLAS=ON
+		-DTPL_ENABLE_BoostLib=ON
+		-DTPL_ENABLE_Boost=ON
+		-DTPL_ENABLE_Clp="$(usex clp)"
+		-DTPL_ENABLE_CSparse="$(usex sparse)"
+		-DTPL_ENABLE_CUDA="$(usex cuda)"
+		-DTPL_ENABLE_CUSPARSE="$(usex cuda)"
+		-DTPL_ENABLE_Eigen="$(usex eigen)"
+		-DTPL_ENABLE_GLPK="$(usex glpk)"
+		-DTPL_ENABLE_gtest="$(usex gtest)"
+		-DTPL_ENABLE_HDF5="$(usex hdf5)"
+		-DTPL_ENABLE_HWLOC="$(usex hwloc)"
+		-DTPL_ENABLE_HYPRE="$(usex hypre)"
+		-DTPL_ENABLE_Kokkos=ON
+		# Tpetra declares a dependency on kokkos-4.5.1, which we have in
+		# our version constraints. But the logic in the build system also
+		# unconditionally enforces that no newer version is installed.
+		# Thus, disable this check:
+		-DTpetra_IGNORE_KOKKOS_COMPATIBILITY=ON
+		# Enable support for 32bit ordinals which is required for some
+		# dependencies such as sci-libs/dealii
+		-DTpetra_INST_INT_INT=ON
+		-DTPL_ENABLE_LAPACK=ON
+		-DTPL_ENABLE_Matio="$(usex matio)"
+		-DTPL_ENABLE_METIS="$(usex metis)"
+		-DTPL_ENABLE_MKL="$(usex mkl)"
+		-DTPL_ENABLE_MPI=ON
+		-DTPL_ENABLE_MUMPS="$(usex mumps)"
+		-DTPL_ENABLE_Netcdf="$(usex netcdf)"
+		-DTPL_ENABLE_PARDISO_MKL="$(usex mkl)"
+		-DTPL_ENABLE_PETSC="$(usex petsc)"
+		-DTPL_ENABLE_Pthread="$(usex threads)"
+		-DTPL_ENABLE_QD="$(usex qd)"
+		-DTPL_ENABLE_SCALAPACK="$(usex scalapack)"
+		-DTPL_ENABLE_Scotch="$(usex scotch)"
+		-DTPL_ENABLE_SuperLU="$(usex superlu)"
+		-DTPL_ENABLE_TAUCS="$(usex taucs)"
+		-DTPL_ENABLE_TBB="$(usex tbb)"
+		-DTPL_ENABLE_TVMET="$(usex tvmet)"
+		-DTPL_ENABLE_UMFPACK="$(usex sparse)"
+		-DTPL_ENABLE_X11="$(usex X)"
+		-DTPL_ENABLE_yamlcpp="$(usex yaml)"
+		-DTPL_ENABLE_Zlib="$(usex zlib)"
+	)
+
+	#
+	# Make sure some critical configuration options are always set
+	# correctly independently of what Trilinos dependency resolver thinks
+	# it should be doing.
+	#
+	local mycmakeargs+=(
+		-DAmesos2_ENABLE_LAPACK=ON
+		-DAmesos2_ENABLE_MUMPS=OFF
+		-DTpetra_INST_SERIAL=ON
+	)
+
+	use eigen && \
+		mycmakeargs+=(
+		-DEigen_INCLUDE_DIRS="${EPREFIX}/usr/include/eigen3"
+	)
+	use hypre && \
+		mycmakeargs+=(
+		-DHYPRE_INCLUDE_DIRS="${EPREFIX}/usr/include/hypre"
+	)
+	use scotch && \
+		mycmakeargs+=(
+		-DScotch_INCLUDE_DIRS="${EPREFIX}/usr/include/scotch"
+	)
+
+	# cxsparse is a rewrite of csparse + extras
+	use sparse && \
+		mycmakeargs+=(
+		-DCSparse_LIBRARY_NAMES="cxsparse"
+	)
+
+	# mandatory blas and lapack
+	trilinos_conf blas BLAS
+	trilinos_conf lapack LAPACK
+	use superlu && trilinos_conf superlu SuperLU
+	use metis && trilinos_conf metis METIS
+
+	# blacs library is included in scalapack these days
+	if use scalapack; then
+		trilinos_conf scalapack SCALAPACK
+		mycmakeargs+=(
+			-DBLACS_LIBRARY_NAMES="scalapack"
+			-DBLACS_INCLUDE_DIRS="${EPREFIX}/usr/include/blacs"
+		)
+	fi
+
+	#
+	# Make sure we use the compiler wrappers in order to build trilinos.
+	#
+	[ ! -z "${CC}"] && export OMPI_CC="${CC}" MPICH_CC="${CC}" && tc-export OMPI_CC MPICH_CC
+	[ ! -z "${CXX}"] && export OMPI_CXX="${CXX}" MPICH_CXX="${CXX}" && tc-export OMPI_CXX MPICH_CXX
+	export CC=mpicc CXX=mpicxx && tc-export CC CXX
+
+	# Trilinos needs a custom build type:
+	local CMAKE_BUILD_TYPE=Release
+
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+
+	# Move the cmake directory to the right location:
+	mkdir -p "${ED}/usr/$(get_libdir)"/cmake
+	mv "${ED}/usr/$(get_libdir)"/trilinos/cmake/* "${ED}/usr/$(get_libdir)"/cmake || die "mv failed"
+	# Fix up include paths:
+	sed -i -e 's#external_packages#trilinos/external_packages#g' \
+		"${ED}/usr/$(get_libdir)"/cmake/**/*.cmake || die "sed failed"
+	rmdir "${ED}/usr/$(get_libdir)/trilinos/cmake" || die "rmdir failed"
+
+	# Register $(get_libdir)/trilinos in LDPATH so that the dynamic linker
+	# has a chance to pick up the libraries, also add Trilinos' binaries ot
+	# the PATH environment variable.
+	cat >> "${T}"/99trilinos <<- EOF
+	LDPATH="${EPREFIX}/usr/$(get_libdir)/trilinos"
+	PATH="${EPREFIX}/usr/$(get_libdir)/trilinos/bin"
+	EOF
+	doenvd "${T}"/99trilinos
+}