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# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit R-packages eapi8-dosym
MY_PV="$(ver_cut 2-4 ${PV})"
DESCRIPTION='Header-Only C++ Mathematical Optimization library for armadillo'
HOMEPAGE="
https://cran.r-project.org/package=RcppEnsmallen
https://github.com/coatless-rpkg/rcppensmallen
"
#SRC_URI="mirror://cran/src/contrib/RcppEnsmallen/RcppEnsmallen_${PV}.tar.gz"
SLOT="0/${PV}"
KEYWORDS="~amd64"
LICENSE='GPL-2+'
DEPEND="
>=dev-lang/R-3.3.0
dev-R/Rcpp
=sci-libs/ensmallen-${MY_PV}*:=
"
RDEPEND="
${DEPEND}
>=dev-R/RcppArmadillo-0.9.800.0.0
"
SUGGESTED_PACKAGES="
dev-R/knitr
dev-R/rmarkdown
"
src_prepare() {
R-packages_src_prepare
# remove bundled
rm -r inst/include/ensmallen_bits || die
rm inst/include/ensmallen.hpp || die
# link to sci-libs/ensmallen
ln -s "${ESYSROOT}"/usr/include/ensmallen_bits inst/include/ensmallen_bits || die
ln -s "${ESYSROOT}"/usr/include/ensmallen.hpp inst/include/ensmallen.hpp || die
}
src_install() {
R-packages_src_install
R_includedir="/usr/$(get_libdir)/R/site-library/${PN}/include"
dosym8 -r /usr/include/ensmallen.hpp "${R_includedir}/ensmallen.hpp"
# portage doesn't like symlinks to folders, symlink all the files then
rm -rf "${ED}/${R_includedir}"/ensmallen_bits/* || die
cp -rs "/usr/include/ensmallen_bits" "${ED}/${R_includedir}" || die
}
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