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# 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=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 )
"
SRC_URI+=" https://dev.gentoo.org/~sam/distfiles/${CATEGORY}/${PN}/${P}-arm64-darwin.patch.bz2"
S="${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}"/${PN}-6.2.1-no-zarch.patch
"${WORKDIR}"/${P}-arm64-darwin.patch
"${FILESDIR}"/${P}-CVE-2021-43618.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
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
$(use pic && echo --with-pic)
)
# Move the wrappers from GMP back into place (may have been destroyed by previous econf run)
cp "${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}/
}