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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit autotools elisp-common flag-o-matic
MY_PN=Singular
MY_PV=$(ver_rs 3 '')
# Consistency is different...
MY_DIR2=$(ver_cut 1-3 ${PV})
MY_DIR=$(ver_rs 1- '-' ${MY_DIR2})
DESCRIPTION="Computer algebra system for polynomial computations"
HOMEPAGE="https://www.singular.uni-kl.de/ https://github.com/Singular/Sources"
SRC_URI="ftp://jim.mathematik.uni-kl.de/pub/Math/${MY_PN}/SOURCES/${MY_DIR}/${PN}-${MY_PV}.tar.gz"
LICENSE="BSD GPL-2 GPL-3"
SLOT="0"
KEYWORDS="~amd64 ~ppc ~x86 ~x86-linux"
IUSE="emacs examples +readline static-libs"
RDEPEND="dev-libs/gmp:0
dev-libs/ntl:=
emacs? ( >=app-editors/emacs-23.1:* )
sci-mathematics/flint
sci-libs/cddlib
dev-lang/perl
readline? ( sys-libs/readline )"
DEPEND="${RDEPEND}"
SITEFILE=60${PN}-gentoo.el
S="${WORKDIR}/${PN}-${MY_DIR2}"
PATCHES=(
"${FILESDIR}/${PN}-4.2.0-gfan_linking.patch"
"${FILESDIR}/${PN}-4.2.0-doc_install-v2.patch"
"${FILESDIR}/${PN}-4.2.0-no-static.patch"
)
src_prepare() {
default
eautoreconf
}
src_configure() {
# singular may segfault with common optimisation such as -O2 without this flag
append-cxxflags $(test-flags-CXX -fno-delete-null-pointer-checks)
econf --with-gmp \
--with-ntl \
--with-flint \
--enable-gfanlib \
--disable-debug \
--disable-doc \
--enable-factory \
--enable-libfac \
--disable-polymake \
--with-libparse \
--disable-optimizationflags \
$(use_enable static-libs static) \
$(use_enable emacs) \
$(use_with readline)
}
src_compile() {
default
if use emacs; then
pushd "${S}"/emacs
elisp-compile *.el || die "elisp-compile failed"
popd
fi
}
src_install() {
# Do not compress singular's info file (singular.hlp)
# some consumer of that file do not know how to deal with compression
docompress -x /usr/share/info
default
dosym Singular /usr/bin/"${PN}"
# purge .la file
find "${ED}" -name '*.la' -delete || die
}
src_test() {
# SINGULAR_PROCS_DIR need to be set to "" otherwise plugins from
# an already installed version of singular may be used and cause segfault
# See https://github.com/Singular/Sources/issues/980
SINGULAR_PROCS_DIR="" emake check
}
pkg_postinst() {
einfo "Additional functionality can be enabled by installing"
einfo "sci-mathematics/4ti2"
use emacs && elisp-site-regen
}
pkg_postrm() {
use emacs && elisp-site-regen
}
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