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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit autotools toolchain-funcs
MyPN=secp256k1
DESCRIPTION="Optimized C library for EC operations on curve secp256k1"
HOMEPAGE="https://github.com/bitcoin-core/secp256k1"
SRC_URI="https://github.com/bitcoin-core/secp256k1/archive/v${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/${MyPN}-${PV}"
LICENSE="MIT"
SLOT="0/5" # subslot is "$((_LIB_VERSION_CURRENT-_LIB_VERSION_AGE))" from configure.ac
KEYWORDS="amd64 arm arm64 ~ppc ~ppc64 x86 ~amd64-linux ~x86-linux"
IUSE="asm +ecdh +ellswift experimental +extrakeys lowmem musig +recovery +schnorr test valgrind"
RESTRICT="!test? ( test )"
REQUIRED_USE="
asm? ( || ( amd64 arm ) arm? ( experimental ) )
musig? ( schnorr )
schnorr? ( extrakeys )
"
BDEPEND="
dev-build/autoconf-archive
virtual/pkgconfig
valgrind? ( dev-debug/valgrind )
"
PATCHES=(
"${FILESDIR}/0.4.0-fix-cross-compile.patch"
)
DOCS=(
README.md
doc/safegcd_implementation.md
)
src_prepare() {
default
eautoreconf
# Generate during build
rm -f src/precomputed_ecmult.c src/precomputed_ecmult_gen.c || die
}
src_configure() {
# https://bugs.gentoo.org/729888
tc-export_build_env BUILD_CC BUILD_CPP
export CC_FOR_BUILD="${BUILD_CC}" CPP_FOR_BUILD="${BUILD_CPP}"
local myeconfargs=(
--disable-benchmark
$(use_enable experimental)
$(use_enable test tests)
$(use_enable test exhaustive-tests)
$(use_enable {,module-}ecdh)
$(use_enable {,module-}ellswift)
$(use_enable {,module-}extrakeys)
$(use_enable {,module-}musig)
$(use_enable {,module-}recovery)
$(use_enable schnorr module-schnorrsig)
$(use_with asm asm "$(usex arm arm32 auto)")
$(usev lowmem '--with-ecmult-window=4 --with-ecmult-gen-kb=2')
$(use_with valgrind)
)
econf "${myeconfargs[@]}"
}
src_install() {
use ellswift && DOCS+=( doc/ellswift.md )
use musig && DOCS+=( doc/musig.md )
default
find "${ED}" -name '*.la' -delete || die
}
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