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# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit cmake flag-o-matic
Sparse_PV="7.12.2"
Sparse_P="SuiteSparse-${Sparse_PV}"
DESCRIPTION="Simple but educational LDL^T matrix factorization algorithm"
HOMEPAGE="https://people.engr.tamu.edu/davis/suitesparse.html"
SRC_URI="https://github.com/DrTimothyAldenDavis/SuiteSparse/archive/refs/tags/v${Sparse_PV}.tar.gz -> ${Sparse_P}.gh.tar.gz"
S="${WORKDIR}/${Sparse_P}/${PN^^}"
LICENSE="LGPL-2.1+"
SLOT="0/$(ver_cut 1)"
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
IUSE="doc test"
RESTRICT="!test? ( test )"
DEPEND="
>=sci-libs/suitesparseconfig-${Sparse_PV}:=
>=sci-libs/amd-3.3.4:=
"
RDEPEND="${DEPEND}"
BDEPEND="
doc? ( virtual/latex-base )
"
src_configure() {
# May slightly skew FP numbers if enabled, and we want to match
# the expected output bit-by-bit in tests.
use test && append-flags -ffp-contract=off
# Define SUITESPARSE_INCLUDEDIR_POSTFIX to "" otherwise it take
# the value suitesparse, and the include directory would be set to
# /usr/include/suitesparse
# This need to be set in all suitesparse ebuilds.
local mycmakeargs=(
-DBUILD_STATIC_LIBS=OFF
-DSUITESPARSE_DEMOS=$(usex test)
-DSUITESPARSE_INCLUDEDIR_POSTFIX=""
)
cmake_src_configure
}
src_test() {
# Because we are not using cmake_src_test,
# we have to manually go to BUILD_DIR
cd "${BUILD_DIR}" || die
# Some programs assume that they can access the Matrix folder in ${S}
ln -s "${S}/Matrix" || die
# Run demo files
local demofiles=(
ldllsimple
ldlmain
ldllmain
ldlamd
ldllamd
)
# not running ldlsimple until it does not "test" suitesparse version as well.
local i
for i in ${demofiles[@]}; do
einfo "testing ${i}"
./"${i}" > "${i}.out" || die "${i} failed to run"
diff "${S}/Demo/${i}.out" "${i}.out" || die "failed testing ${i}"
done
einfo "All tests passed"
}
src_install() {
if use doc; then
pushd "${S}/Doc" || die
emake clean
rm -rf *.pdf || die
emake
popd || die
DOCS="${S}/Doc/*.pdf"
fi
cmake_src_install
}
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