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# Copyright 1999-2024 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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inherit elisp-common flag-o-matic
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MY_PN=Singular
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MY_PV=$(ver_rs 3 '')
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# Consistency is different...
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MY_DIR2=$(ver_cut 1-3 ${PV})
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MY_DIR=$(ver_rs 1- '-' ${MY_DIR2})
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DESCRIPTION="Computer algebra system for polynomial computations"
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HOMEPAGE="https://www.singular.uni-kl.de/ https://github.com/Singular/Singular"
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SRC_URI="https://www.singular.uni-kl.de/ftp/pub/Math/${MY_PN}/SOURCES/${MY_DIR}/${PN}-${MY_PV}.tar.gz"
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S="${WORKDIR}/${PN}-${MY_DIR2}"
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# Most files say "version 2 or version 3 of the License," which is not
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# quite GPL-2+, and is why we have listed GPL-2 below. But AFAIK there
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# are no GPL-2-only files.
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LICENSE="BSD GPL-2 GPL-2+ GPL-3"
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SLOT="0"
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KEYWORDS="amd64 ~ppc ~riscv ~x86 ~x86-linux"
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IUSE="emacs examples polymake +readline"
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# The interactive help uses "info" from sys-apps/texinfo.
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RDEPEND="
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dev-lang/perl
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dev-libs/gmp:0
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dev-libs/ntl:=
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sci-libs/cddlib
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sci-mathematics/flint
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sys-apps/texinfo
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emacs? ( app-editors/emacs:* )
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polymake? ( sci-mathematics/polymake )
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readline? ( sys-libs/readline )
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"
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DEPEND="${RDEPEND}"
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SITEFILE=60${PN}-gentoo.el
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src_configure() {
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# -Werror=strict-aliasing
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# https://bugs.gentoo.org/927675
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# https://github.com/Singular/Singular/issues/1212
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#
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# Do not trust with LTO either.
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append-flags -fno-strict-aliasing
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filter-lto
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local myconf=(
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--disable-debug
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--disable-doc
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--disable-optimizationflags
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--disable-pyobject-module
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--disable-python
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--disable-python-module
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--disable-python_module
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--enable-factory
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--enable-gfanlib
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--enable-libfac
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--with-flint
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--with-gmp
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--with-libparse
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--with-ntl
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--without-python
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--without-pythonmodule
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$(use_enable emacs)
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$(use_enable polymake polymake-module)
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$(use_with readline)
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)
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econf "${myconf[@]}"
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}
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src_compile() {
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default
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if use emacs; then
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pushd "${S}"/emacs
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elisp-compile *.el || die "elisp-compile failed"
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popd
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fi
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}
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src_install() {
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# Do not compress singular's info file (singular.hlp)
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# some consumer of that file do not know how to deal with compression
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docompress -x /usr/share/info
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default
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dosym Singular /usr/bin/"${PN}"
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find "${ED}" -type f -name '*.la' -delete || die
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}
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src_test() {
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# SINGULAR_PROCS_DIR need to be set to "" otherwise plugins from
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# an already installed version of singular may be used and cause segfault
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# See https://github.com/Singular/Sources/issues/980
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SINGULAR_PROCS_DIR="" emake check
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}
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pkg_postinst() {
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einfo "Additional functionality can be enabled by installing"
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einfo "sci-mathematics/4ti2"
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use emacs && elisp-site-regen
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}
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pkg_postrm() {
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use emacs && elisp-site-regen
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}
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