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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
PYTHON_COMPAT=( python3_6 python3_7 python3_8 )
inherit distutils-r1 toolchain-funcs
DESCRIPTION="Python package for convex optimization"
HOMEPAGE="https://cvxopt.org/ https://github.com/cvxopt/cvxopt"
SRC_URI="https://github.com/${PN}/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="GPL-3"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE="doc +dsdp examples fftw +glpk gsl test"
RESTRICT="!test? ( test )"
DEPEND="
virtual/blas
virtual/lapack
sci-libs/amd:0=
sci-libs/cholmod:0=
sci-libs/colamd:0=
sci-libs/suitesparseconfig:0=
sci-libs/umfpack:0=
dsdp? ( sci-libs/dsdp:0= )
fftw? ( sci-libs/fftw:3.0= )
glpk? ( >=sci-mathematics/glpk-4.49:0= )
gsl? ( sci-libs/gsl:0= )"
RDEPEND="${DEPEND}"
BDEPEND="virtual/pkgconfig
doc? ( dev-python/sphinx )
test? ( ${RDEPEND} dev-python/nose[${PYTHON_USEDEP}] )"
# The BLAS_LIB and LAPACK_LIB variables (among others) in cvxopt's
# setup.py are passed in as colon-delimited strings. So, for example,
# if your blas "l" flags are "-lblas -lcblas", then cvxopt wants
# "blas;cblas" for BLAS_LIB.
#
# The following function takes a flag type ("l", "L", or "I") as its
# first argument and a list of packages as its remaining arguments. It
# outputs a list of libraries, library paths, or include paths,
# respectively, for the given packages, retrieved using pkg-config and
# deduplicated, in the appropriate format.
#
cvxopt_output() {
local FLAGNAME="${1}"
shift
local PACKAGES="${@}"
local PKGCONFIG_MODE
case "${FLAGNAME}" in
l) PKGCONFIG_MODE="--libs-only-l";;
L) PKGCONFIG_MODE="--libs-only-L";;
I) PKGCONFIG_MODE="--cflags-only-I";;
*) echo "invalid flag name: ${FLAGNAME}"; exit 1;;
esac
local CVXOPT_OUTPUT=""
local PKGCONFIG_ITEM
for PKGCONFIG_ITEM in $($(tc-getPKG_CONFIG) ${PKGCONFIG_MODE} ${PACKAGES})
do
# First strip off the leading "-l", "-L", or "-I", and replace
# it with a semicolon...
PKGCONFIG_ITEM=";${PKGCONFIG_ITEM#-${FLAGNAME}}"
# Now check to see if this element is already present in the
# list, and skip it if it is. This eliminates multiple entries
# from winding up in the list when multiple package arguments are
# passed to this function.
if [[ "${CVXOPT_OUTPUT}" != "${CVXOPT_OUTPUT%${PKGCONFIG_ITEM}}" ]]
then
# It was already the last entry in the list, so skip it.
continue
elif [[ "${CVXOPT_OUTPUT}" != "${CVXOPT_OUTPUT%${PKGCONFIG_ITEM};*}" ]]
then
# It was an earlier entry in the list. These two cases are
# separate to ensure that we can e.g. find ";m" at the end
# of the list, but that we don't find ";metis" in the process.
continue
fi
# It isn't in the list yet, so append it.
CVXOPT_OUTPUT+="${PKGCONFIG_ITEM}"
done
# Strip the leading ";" from ";foo;bar" before output.
echo "${CVXOPT_OUTPUT#;}"
}
python_prepare_all() {
# Mandatory dependencies.
export CVXOPT_BLAS_LIB="$(cvxopt_output l blas)"
export CVXOPT_BLAS_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L blas)"
export CVXOPT_LAPACK_LIB="$(cvxopt_output l lapack)"
export CVXOPT_SUITESPARSE_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L umfpack cholmod amd colamd suitesparseconfig)"
# Most of these CVXOPT_* variables can be blank or have "empty"
# entries and the resulting command-line with e.g. "-L -L/some/path"
# won't hurt anything. The INC_DIR variables, however, cause
# problems, because at least gcc doesn't like a bare "-I". We
# pre-populate these variable with something safe so that setup.py
# doesn't look in the wrong place if pkg-config doesn't return any
# extra -I directories. This is
#
# https://github.com/cvxopt/cvxopt/issues/167
#
CVXOPT_SUITESPARSE_INC_DIR="${EPREFIX}/usr/include"
local SUITESPARSE_LOCAL_INCS="$(cvxopt_output I umfpack cholmod amd colamd suitesparseconfig)"
if [[ -n "${SUITESPARSE_LOCAL_INCS}" ]]; then
CVXOPT_SUITESPARSE_INC_DIR+=";${SUITESPARSE_LOCAL_INCS}"
fi
export CVXOPT_SUITESPARSE_INC_DIR
# optional dependencies
if use dsdp; then
# no pkg-config file at the moment
export CVXOPT_BUILD_DSDP=1
export CVXOPT_DSDP_LIB_DIR="${EPREFIX}/usr/$(get_libdir)"
export CVXOPT_DSDP_INC_DIR="${EPREFIX}/usr/include"
fi
if use fftw; then
export CVXOPT_BUILD_FFTW=1
export CVXOPT_FFTW_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L fftw3)"
CVXOPT_FFTW_INC_DIR="${EPREFIX}/usr/include"
FFTW_LOCAL_INCS="$(cvxopt_output I fftw3)"
if [[ -n "${FFTW_LOCAL_INCS}" ]]; then
CVXOPT_FFTW_INC_DIR+=";${FFTW_LOCAL_INCS}"
fi
export CVXOPT_FFTW_INC_DIR
fi
if use glpk; then
# no pkg-config file at the moment
export CVXOPT_BUILD_GLPK=1
export CVXOPT_GLPK_LIB_DIR="${EPREFIX}/usr/$(get_libdir)"
export CVXOPT_GLPK_INC_DIR="${EPREFIX}/usr/include"
fi
if use gsl; then
export CVXOPT_BUILD_GSL=1
export CVXOPT_GSL_LIB_DIR="${EPREFIX}/usr/$(get_libdir);$(cvxopt_output L gsl)"
CVXOPT_GSL_INC_DIR="${EPREFIX}/usr/include"
GSL_LOCAL_INCS="$(cvxopt_output I gsl)"
if [[ -n "${GSL_LOCAL_INCS}" ]]; then
CVXOPT_GSL_INC_DIR+=";${GSL_LOCAL_INCS}"
fi
export CVXOPT_GSL_INC_DIR
fi
distutils-r1_python_prepare_all
}
python_compile_all() {
use doc && VARTEXFONTS="${T}/fonts" emake -C doc -B html
}
python_test() {
PYTHONPATH="${BUILD_DIR}"/lib nosetests -v || die
}
python_install_all() {
use doc && HTML_DOCS=( doc/build/html/. )
distutils-r1_python_install_all
if use examples; then
dodoc -r examples
docompress -x "/usr/share/doc/${PF}/examples"
fi
}
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