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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 estack
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DESCRIPTION="System for computational discrete algebra. Core functionality."
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HOMEPAGE="https://www.gap-system.org/"
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SRC_URI="https://github.com/gap-system/gap/releases/download/v${PV/_/-}/${P/_/-}-core.tar.gz"
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LICENSE="GPL-2+"
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SLOT="0/9" # soname
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KEYWORDS="amd64"
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IUSE="cpu_flags_x86_popcnt debug memcheck minimal readline test valgrind"
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REQUIRED_USE="?? ( memcheck valgrind )"
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RESTRICT="!test? ( test )"
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# The minimum set of packages needed for basic GAP operation. You can
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# actually start gap without these by passing "--bare" to it on the CLI,
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# but don't expect anything to work.
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REQUIRED_PKGS="
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dev-gap/gapdoc
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dev-gap/primgrp
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dev-gap/smallgrp
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dev-gap/transgrp"
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# The packages aren't really required, but GAP tries to load them
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# automatically, and will complain to the user if they fail to load.
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# The list of automatically-loaded packages is a user preference, called
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# AutoloadPackages, and the upstream default can be found in
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# lib/package.gi within the GAP source tree. Passing "-A" to GAP on the
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# CLI (or setting that user preference) will suppress the autoload
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# behavior and allow GAP to start without these, which is why we allow
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# the user to skip them with USE=minimal if he knows what he is doing.
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AUTOLOADED_PKGS="
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dev-gap/autpgrp
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dev-gap/alnuth
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dev-gap/crisp
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dev-gap/ctbllib
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dev-gap/factint
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dev-gap/fga
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dev-gap/irredsol
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dev-gap/laguna
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dev-gap/polenta
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dev-gap/polycyclic
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dev-gap/resclasses
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dev-gap/sophus
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dev-gap/tomlib"
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# The test suite will fail without the "required" subset.
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BDEPEND="test? ( ${REQUIRED_PKGS} )"
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DEPEND="dev-libs/gmp:=
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sys-libs/zlib
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valgrind? ( dev-debug/valgrind )
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readline? ( sys-libs/readline:= )"
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RDEPEND="${DEPEND}"
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# If you _really_ want to install GAP without the set of required
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# packages, use package.provided.
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PDEPEND="${REQUIRED_PKGS} !minimal? ( ${AUTOLOADED_PKGS} )"
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S="${WORKDIR}/${P/_/-}"
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pkg_setup() {
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if use valgrind; then
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elog "If you enable the use of valgrind during building"
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elog "be sure that you have enabled the proper flags"
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elog "in gcc to support it:"
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elog "https://wiki.gentoo.org/wiki/Debugging#Valgrind"
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fi
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}
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src_prepare() {
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# Remove these to be extra sure we don't use bundled libraries.
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rm -r extern || die
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rm -r hpcgap/extern || die
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# The Makefile just tells you to run ./configure, which then
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# produces a GNUmakefile.
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rm Makefile || die
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default
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}
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src_configure() {
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# We unset $ABI because GAP uses it internally for something else.
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# --without-gmp and --without-zlib both trigger an AC_MSG_ERROR
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local myeconfargs=(
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ABI=""
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--with-gmp
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--with-zlib
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$(use_enable cpu_flags_x86_popcnt popcnt)
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$(use_enable memcheck memory-checking)
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$(use_enable valgrind)
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$(use_with readline)
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$(use_enable debug)
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)
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econf "${myeconfargs[@]}"
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}
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src_compile() {
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# Without this, the default is a quiet build.
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emake V=1
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}
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src_test() {
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# We need to specify additional root paths because otherwise the
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# recently-built GAP doesn't know where to look for the "required"
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# packages (which must already be installed). The two paths we
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# append to $S are where those packages wind up.
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local gaproots="${S}/;"
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gaproots+="${EPREFIX}/usr/$(get_libdir)/gap/;"
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gaproots+="${EPREFIX}/usr/share/gap/"
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# GAPARGS is a Makefile variable that exists for this purpose. We
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# use "-A" to hide the warnings about missing autoloaded-but-not-
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# required packages. The tee/pipefail works around a glitch in
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# dev-gap/browse that can clobber your terminal.
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eshopts_push -o pipefail
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emake GAPARGS="-A -l '${gaproots}'" check | tee test-suite.log \
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|| die "test suite failed, see test-suite.log"
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eshopts_pop
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}
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src_install() {
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default
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# Manually install Makefile.gappkg
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insinto usr/share/gap/etc
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doins etc/Makefile.gappkg
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# la files removal
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find "${ED}" -type f -name '*.la' -delete || die
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}
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