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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
CMAKE_ECLASS=cmake
PYTHON_COMPAT=( python3_{6,7,8} )
inherit cmake-multilib python-any-r1 toolchain-funcs
DESCRIPTION="Nonlinear least-squares minimizer"
HOMEPAGE="http://ceres-solver.org/"
SRC_URI="http://ceres-solver.org/${P}.tar.gz"
LICENSE="sparse? ( BSD ) !sparse? ( LGPL-2.1 ) cxsparse? ( BSD )"
SLOT="0/1"
KEYWORDS="amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE="cxsparse doc examples gflags lapack openmp +schur sparse test"
REQUIRED_USE="test? ( gflags ) sparse? ( lapack ) abi_x86_32? ( !sparse !lapack )"
RESTRICT="!test? ( test )"
BDEPEND="${PYTHON_DEPS}
>=dev-cpp/eigen-3.3.4:3
doc? (
dev-python/sphinx
dev-python/sphinx_rtd_theme
)
lapack? ( virtual/pkgconfig )
"
RDEPEND="
dev-cpp/glog[gflags?,${MULTILIB_USEDEP}]
cxsparse? ( sci-libs/cxsparse )
lapack? ( virtual/lapack )
sparse? (
sci-libs/amd
sci-libs/camd
sci-libs/ccolamd
sci-libs/cholmod[metis(+)]
sci-libs/colamd
sci-libs/spqr
)
"
DEPEND="${RDEPEND}"
DOCS=( README.md VERSION )
pkg_pretend() {
if [[ ${MERGE_TYPE} != binary ]] && use openmp; then
if [[ $(tc-getCXX) == *g++* ]] && ! tc-has-openmp; then
ewarn "OpenMP is not available in your current selected gcc"
die "need openmp capable gcc"
fi
fi
}
pkg_setup() {
use doc && python-any-r1_pkg_setup
}
src_prepare() {
cmake_src_prepare
# search paths work for prefix
sed -e "s:/usr:${EPREFIX}/usr:g" \
-i cmake/*.cmake || die
# remove Werror
sed -e 's/-Werror=(all|extra)//g' \
-i CMakeLists.txt || die
}
src_configure() {
# CUSTOM_BLAS=OFF EIGENSPARSE=OFF MINIGLOG=OFF CXX11=OFF
local mycmakeargs=(
-DBUILD_BENCHMARKS=OFF
-DBUILD_EXAMPLES=OFF
-DBUILD_TESTING=$(usex test)
-DBUILD_DOCUMENTATION=$(usex doc)
-DGFLAGS=$(usex gflags)
-DLAPACK=$(usex lapack)
-DOPENMP=$(usex openmp)
-DSCHUR_SPECIALIZATIONS=$(usex schur)
-DCXSPARSE=$(usex cxsparse)
-DSUITESPARSE=$(usex sparse)
)
use doc && mycmakeargs+=(
-DCERES_DOCS_INSTALL_DIR="${EPREFIX}"/usr/share/doc/${PF}
)
use sparse || use cxsparse || mycmakeargs+=( -DEIGENSPARSE=ON )
cmake-multilib_src_configure
}
src_install() {
cmake-multilib_src_install
if use examples; then
docompress -x /usr/share/doc/${PF}/examples
dodoc -r examples data
fi
}
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