sci-mathematics/gap: new package, add 4.12.2

This is not really functional for the moment, because GAP has several
required packages that cannot be added until GAP itself is in the tree
due to circular dependencies.

Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

3 files changed, 114 insertions, 0 deletions

diff --git a/sci-mathematics/gap/Manifest b/sci-mathematics/gap/Manifest
new file mode 100644
index 000000000000..20d1f3a3316c
--- /dev/null
+++ b/sci-mathematics/gap/Manifest
@@ -0,0 +1 @@
+DIST gap-4.12.2-core.tar.gz 37671069 BLAKE2B 7e2c35f0bb232fc5478ff09e98b9c4d021ee5df775f2ff4934b27f871c18a3781386c24b94f1255517c4193c1eb9ff6396ea70e8d6cf72ccbb5480ca837ef8eb SHA512 d16af2648b0a655df7ce28cf8e2c6b3d0e33eda806674844a9813b4cb5068b137005225c02b8651a25b608e9b76a184f54f2e291a957a4675c38a7883ef83a38
diff --git a/sci-mathematics/gap/gap-4.12.2.ebuild b/sci-mathematics/gap/gap-4.12.2.ebuild
new file mode 100644
index 000000000000..4a74d2e9e3cf
--- /dev/null
+++ b/sci-mathematics/gap/gap-4.12.2.ebuild
@@ -0,0 +1,78 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+DESCRIPTION="System for computational discrete algebra. Core functionality."
+HOMEPAGE="https://www.gap-system.org/"
+SRC_URI="https://github.com/gap-system/gap/releases/download/v${PV}/${P}-core.tar.gz"
+
+LICENSE="GPL-2+"
+SLOT="0/8"
+KEYWORDS="~amd64"
+IUSE="cpu_flags_x86_popcnt debug emacs memcheck readline valgrind"
+REQUIRED_USE="?? ( memcheck valgrind )"
+RESTRICT=test
+
+DEPEND="dev-libs/gmp:=
+	sys-libs/zlib
+	valgrind? ( dev-util/valgrind )
+	readline? ( sys-libs/readline:= )"
+
+RDEPEND="${DEPEND}"
+
+pkg_setup() {
+	if use valgrind; then
+		elog "If you enable the use of valgrind during building"
+		elog "be sure that you have enabled the proper flags"
+		elog "in gcc to support it:"
+		elog "https://wiki.gentoo.org/wiki/Debugging#Valgrind"
+	fi
+}
+
+src_prepare() {
+	# Remove these to be extra sure we don't use bundled libraries.
+	rm -r extern || die
+	rm -r hpcgap/extern || die
+
+	# The Makefile just tells you to run ./configure, which then
+	# produces a GNUmakefile.
+	rm Makefile || die
+
+	default
+
+	# Fix feature detection with pathological CFLAGS
+	eautoreconf
+}
+
+src_configure() {
+	# We unset $ABI because GAP uses it internally for something else.
+	# --without-gmp and --without-zlib both trigger an AC_MSG_ERROR
+	econf \
+		ABI="" \
+		--with-gmp \
+		--with-zlib \
+		$(use_enable cpu_flags_x86_popcnt popcnt) \
+		$(use_enable memcheck memory-checking) \
+		$(use_enable valgrind) \
+		$(use_with readline) \
+		$(use_enable debug)
+}
+
+src_compile() {
+	# Without this, the default is a quiet build.
+	emake V=1
+}
+
+src_install() {
+	default
+
+	# Manually install Makefile.gappkg
+	insinto usr/share/gap/etc
+	doins etc/Makefile.gappkg
+
+	# la files removal
+	find "${ED}" -type f -name '*.la' -delete || die
+}
diff --git a/sci-mathematics/gap/metadata.xml b/sci-mathematics/gap/metadata.xml
new file mode 100644
index 000000000000..26c5fc567f82
--- /dev/null
+++ b/sci-mathematics/gap/metadata.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>mjo@gentoo.org</email>
+  </maintainer>
+  <maintainer type="person">
+    <email>frp.bissey@gmail.com</email>
+    <name>François Bissey</name>
+  </maintainer>
+  <maintainer type="project" proxied="proxy">
+    <email>proxy-maint@gentoo.org</email>
+    <name>Proxy Maintainers</name>
+  </maintainer>
+  <maintainer type="project">
+    <email>sci-mathematics@gentoo.org</email>
+    <name>Gentoo Mathematics Project</name>
+  </maintainer>
+  <longdescription lang="en">
+    Groups, Algorithms, Programming is a system for computational
+    discrete algebra, with particular emphasis on Computational Group
+    Theory. GAP provides a programming language, a library of thousands
+    of functions implementing algebraic algorithms written in the GAP
+    language as well as large data libraries of algebraic objects. GAP
+    is used in research and teaching for studying groups and their
+    representations, rings, vector spaces, algebras, combinatorial
+    structures, and more.
+  </longdescription>
+  <use>
+    <flag name="memcheck">Enable memory checking</flag>
+  </use>
+  <upstream>
+    <remote-id type="github">gap-system/gap</remote-id>
+  </upstream>
+</pkgmetadata>