dev-libs/gmp: Sync with Gentoo

It's from Gentoo commit d89510821e84ece8bf057f57f297016fae114e06.

sdk_container/src/third_party/portage-stable/dev-libs/gmp/Manifest

@@ -1,3 +1,4 @@
 DIST gmp-6.2.1-arm64-darwin.patch.bz2 2520 BLAKE2B 3d4e9dbd29dc9aa81f0c9e0de4a5904c989d54148c9e3dcc5097a43b3fb1ecd17802dacfc71ee131c0805a345f5dce9009e88439758d3a0ed8b3a88526353b4a SHA512 72d49f09c3facd75036c945e076207e72e5673ba9605999c32a122e43e8b970ed646c8ca8f07acbb62bff5e7c387d4c8e1f73ca73e50ac3f574b5f6471d66d56
 DIST gmp-6.2.1.tar.xz 2027316 BLAKE2B c0d85f175392a50cfa01bc6b0a312b235946ad8b4f6f84f6dabd33d7a6f2cc75c9b0e1e33057be07750bfa0145b7c4cf3b6188a5be6ca9d7271ec2276c84ebcb SHA512 c99be0950a1d05a0297d65641dd35b75b74466f7bf03c9e8a99895a3b2f9a0856cd17887738fa51cf7499781b65c049769271cbcb77d057d2e9f1ec52e07dd84
+DIST gmp-6.3.0.tar.xz 2094196 BLAKE2B a865129e2b3f634ec5bad7f97ed89532e43f5662ac47a7d8ab7f0df8c9f8d0886bd984651422e2573c2163bca69c0547c248147ec90880accbd53db97dc0ddee SHA512 e85a0dab5195889948a3462189f0e0598d331d3457612e2d3350799dba2e244316d256f8161df5219538eb003e4b5343f989aaa00f96321559063ed8c8f29fd2
 DIST gmp-man-6.2.1.pdf 827583 BLAKE2B 9aa25457a3c488e37cc7d54d825253ab749a3780919570579b319cf607001de50b212ca387b70213abcc5ab428b4525bdb9cd8ae932798a2d7928da98ce3f353 SHA512 f2d9d02e97975355ef490e921fedc94fb7687c3661eec8fa2e94a1622b6e59b17b3879eb3ec1f2df8edac100f727175144d107f4c49c602b773c43bc9e91dbcb

sdk_container/src/third_party/portage-stable/dev-libs/gmp/gmp-6.3.0.ebuild

@@ -0,0 +1,186 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit gnuconfig libtool flag-o-matic multilib-minimal toolchain-funcs
+
+MY_PV=${PV/_p*}
+MY_PV=${MY_PV/_/-}
+
+MANUAL_PV=${MY_PV}
+MANUAL_PV=6.2.1
+
+MY_P=${PN}-${MY_PV}
+PLEVEL=${PV/*p}
+
+DESCRIPTION="Library for arbitrary-precision arithmetic on different type of numbers"
+HOMEPAGE="https://gmplib.org/"
+SRC_URI="
+	https://gmplib.org/download/gmp/${MY_P}.tar.xz
+	mirror://gnu/${PN}/${MY_P}.tar.xz
+	doc? ( https://gmplib.org/${PN}-man-${MANUAL_PV}.pdf )
+"
+S="${WORKDIR}"/${MY_P%a}
+
+LICENSE="|| ( LGPL-3+ GPL-2+ )"
+# The subslot reflects the C & C++ SONAMEs.
+SLOT="0/10.4"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="+asm doc +cpudetection +cxx pic static-libs"
+REQUIRED_USE="cpudetection? ( asm )"
+RESTRICT="!cpudetection? ( bindist )"
+
+BDEPEND="
+	app-arch/xz-utils
+	sys-devel/m4
+"
+
+DOCS=( AUTHORS ChangeLog NEWS README doc/configuration doc/isa_abi_headache )
+HTML_DOCS=( doc )
+
+MULTILIB_WRAPPED_HEADERS=( /usr/include/gmp.h )
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-6.1.0-noexecstack-detect.patch
+	"${FILESDIR}"/${PN}-6.2.1-no-zarch.patch
+)
+
+pkg_pretend() {
+	if use cpudetection && ! use amd64 && ! use x86 ; then
+		elog "Using generic C implementation on non-amd64/x86 with USE=cpudetection"
+		elog "--enable-fat is a no-op on alternative arches."
+		elog "To obtain an optimized build, set USE=-cpudetection, but binpkgs should not then be made."
+	fi
+}
+
+src_prepare() {
+	default
+
+	# We cannot run autotools here as gcc depends on this package
+	elibtoolize
+
+	# bug #536894
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		eapply "${FILESDIR}"/${PN}-6.1.2-gcc-apple-4.0.1.patch
+	fi
+
+	# GMP uses the "ABI" env var during configure as does Gentoo (econf).
+	# So, to avoid patching the source constantly, wrap things up.
+	mv configure configure.wrapped || die
+	cat <<-\EOF > configure
+	#!/usr/bin/env sh
+	exec env ABI="${GMPABI}" "$0.wrapped" "$@"
+	EOF
+
+	# Patches to original configure might have lost the +x bit.
+	chmod a+rx configure{,.wrapped} || die
+
+	# Save the upstream files named config.{guess,sub} which are
+	# wrappers around the gnuconfig versions.
+	mkdir "${T}"/gmp-gnuconfig || die
+	mv config.guess "${T}"/gmp-gnuconfig/config.guess || die
+	mv config.sub "${T}"/gmp-gnuconfig/config.sub || die
+	# Grab fresh copies from gnuconfig.
+	touch config.guess config.sub || die
+	gnuconfig_update
+	# Rename the fresh copies to the filenames the wrappers from GMP
+	# expect.
+	mv config.guess configfsf.guess || die
+	mv config.sub configfsf.sub || die
+}
+
+multilib_src_configure() {
+	# Generally a very fragile package
+	strip-flags
+	# Miscompiled with LTO at least on arm64, bug #889948
+	# 6.3.0 says it now supports LTO, but needs retesting on a variety
+	# of platforms. Fix was maybe https://gmplib.org/repo/gmp-6.3/rev/9c324044f4b5.
+	filter-lto
+
+	# Because of our 32-bit userland, 1.0 is the only HPPA ABI that works
+	# https://gmplib.org/manual/ABI-and-ISA.html#ABI-and-ISA (bug #344613)
+	if [[ ${CHOST} == hppa2.0-* ]] ; then
+		GMPABI="1.0"
+	fi
+
+	# ABI mappings (needs all architectures supported)
+	case ${ABI} in
+		32|x86)       GMPABI=32;;
+		64|amd64|n64) GMPABI=64;;
+		[onx]32)      GMPABI=${ABI};;
+	esac
+	export GMPABI
+
+	tc-export CC
+
+	# https://gmplib.org/manual/Notes-for-Package-Builds
+	local myeconfargs=(
+		CC_FOR_BUILD="$(tc-getBUILD_CC)"
+
+		--localstatedir="${EPREFIX}"/var/state/gmp
+		--enable-shared
+
+		$(use_enable asm assembly)
+		# fat is needed to avoid gmp installing either purely generic
+		# or specific-to-used-CPU (which our config.guess refresh prevents at the moment).
+		# Both Fedora and opensuse use this option to tackle the issue, bug #883201.
+		#
+		# This only works for amd64/x86, so to get accelerated performance
+		# (i.e. not using the generic C), one needs USE=-cpudetection if
+		# on non-amd64/x86.
+		#
+		# (We do not mask USE=cpudetection on !amd64/x86 because we want
+		# the flag to be useful on other arches to allow opting out of the
+		# config.guess logic below.)
+		$(use_enable cpudetection fat)
+		$(use_enable cxx)
+		$(use_enable static-libs static)
+
+		# --with-pic forces static libraries to be built as PIC
+		# and without TEXTRELs. musl does not support TEXTRELs: bug #707332
+		$(use pic && echo --with-pic)
+
+		# XXX: In the past, we had PGO support with upstream's 'tuneup' script
+		# per https://gmplib.org/manual/Performance-optimization, but we had
+		# a variety of issues with it: bug #454912, bug #650558, and bug #658688.
+	)
+
+	# Move the wrappers from GMP back into place (may have been destroyed by previous econf run)
+	cp "${T}"/gmp-gnuconfig/config.guess "${S}"/config.guess || die
+	cp "${T}"/gmp-gnuconfig/config.sub "${S}"/config.sub || die
+
+	# See bug #883201 again.
+	if ! use cpudetection && ! tc-is-cross-compiler ; then
+		local gmp_host=$("${S}"/config.guess || die "failed to run config.guess")
+
+		if [[ -z ${gmp_host} ]] ; then
+			die "Empty result from GMP's custom config.guess!"
+		fi
+
+		einfo "GMP guessed processor type: ${gmp_host}"
+		ewarn "This build will only work on this machine. Enable USE=cpudetection for binary packages!"
+		export ac_cv_build="${gmp_host}"
+		export ac_cv_host="${gmp_host}"
+	fi
+
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+}
+
+multilib_src_install() {
+	emake DESTDIR="${D}" install
+
+	# Should be a standalone lib
+	rm -f "${ED}"/usr/$(get_libdir)/libgmp.la
+
+	# This requires libgmp
+	local la="${ED}/usr/$(get_libdir)/libgmpxx.la"
+	if ! use static-libs ; then
+		rm -f "${la}" || die
+	fi
+}
+
+multilib_src_install_all() {
+	einstalldocs
+	use doc && cp "${DISTDIR}"/gmp-man-${MANUAL_PV}.pdf "${ED}"/usr/share/doc/${PF}/
+}