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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
FORTRAN_NEEDED="test"
inherit cmake cuda fortran-2
DESCRIPTION="C++ template library for linear algebra"
HOMEPAGE="http://eigen.tuxfamily.org/index.php?title=Main_Page"
SRC_URI="https://gitlab.com/lib${PN}/${PN}/-/archive/${PV}/${P}.tar.gz"
LICENSE="MPL-2.0"
SLOT="3"
KEYWORDS="~amd64 ~arm ~arm64 ~ppc ppc64 ~x86 ~amd64-linux ~x86-linux"
IUSE="cpu_flags_arm_neon cpu_flags_ppc_altivec cpu_flags_ppc_vsx cuda debug doc openmp test" #zvector
RESTRICT="!test? ( test )"
BDEPEND="
doc? (
app-doc/doxygen[dot]
dev-texlive/texlive-bibtexextra
dev-texlive/texlive-fontsextra
dev-texlive/texlive-fontutils
dev-texlive/texlive-latex
dev-texlive/texlive-latexextra
)
test? ( virtual/pkgconfig )
"
DEPEND="
cuda? ( dev-util/nvidia-cuda-toolkit )
test? (
dev-libs/gmp:0
dev-libs/mpfr:0
media-libs/freeglut
media-libs/glew
sci-libs/adolc[sparse]
sci-libs/cholmod
sci-libs/fftw:3.0
sci-libs/pastix
sci-libs/scotch
sci-libs/spqr
sci-libs/superlu
sci-libs/umfpack
virtual/opengl
)
"
# Missing:
# METIS-5
# GOOGLEHASH
PATCHES=(
"${FILESDIR}"/${PN}-3.3.7-gentoo-cmake.patch
"${FILESDIR}"/${PN}-3.3.9-max-macro.patch
)
src_prepare() {
cmake_src_prepare
cmake_comment_add_subdirectory demos
if ! use test; then
sed -e "/add_subdirectory(test/s/^/#DONOTCOMPILE /g" \
-e "/add_subdirectory(blas/s/^/#DONOTCOMPILE /g" \
-e "/add_subdirectory(lapack/s/^/#DONOTCOMPILE /g" \
-i CMakeLists.txt || die
fi
use cuda && cuda_src_prepare
}
src_configure() {
local mycmakeargs=(
-DCMAKEPACKAGE_INSTALL_DIR=$(get_libdir)/cmake/${PN}${SLOT}
)
use test && mycmakeargs+=(
# the OpenGL testsuite is extremely brittle, bug #712808
-DEIGEN_TEST_NO_OPENGL=ON
# the cholmod tests are broken and always fail
-DCMAKE_DISABLE_FIND_PACKAGE_Cholmod=ON
-DEIGEN_TEST_CXX11=ON
-DEIGEN_TEST_NOQT=ON
-DEIGEN_TEST_ALTIVEC=$(usex cpu_flags_ppc_altivec)
-DEIGEN_TEST_CUDA=$(usex cuda)
-DEIGEN_TEST_OPENMP=$(usex openmp)
-DEIGEN_TEST_NEON64=$(usex cpu_flags_arm_neon)
-DEIGEN_TEST_VSX=$(usex cpu_flags_ppc_vsx)
)
cmake_src_configure
}
src_compile() {
cmake_src_compile
if use doc; then
cmake_src_compile doc
HTML_DOCS=( "${BUILD_DIR}"/doc/html/. )
fi
if use test; then
cmake_src_compile blas
cmake_src_compile buildtests
# tests generate random data, which
# obviously fails for some seeds
export EIGEN_SEED=712808
fi
}
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