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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/gnupg.asc
inherit autotools flag-o-matic linux-info multilib-minimal toolchain-funcs verify-sig
DESCRIPTION="General purpose crypto library based on the code used in GnuPG"
HOMEPAGE="https://www.gnupg.org/"
SRC_URI="mirror://gnupg/${PN}/${P}.tar.bz2"
SRC_URI+=" verify-sig? ( mirror://gnupg/${PN}/${P}.tar.bz2.sig )"
LICENSE="LGPL-2.1+ GPL-2+ MIT"
SLOT="0/20" # subslot = soname major version
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
IUSE="+asm doc +getentropy static-libs"
IUSE+=" cpu_flags_arm_neon cpu_flags_arm_aes cpu_flags_arm_sha1 cpu_flags_arm_sha2 cpu_flags_arm_sve"
IUSE+=" cpu_flags_ppc_altivec cpu_flags_ppc_vsx2 cpu_flags_ppc_vsx3"
IUSE+=" cpu_flags_x86_aes cpu_flags_x86_avx cpu_flags_x86_avx2 cpu_flags_x86_avx512f cpu_flags_x86_padlock cpu_flags_x86_sha cpu_flags_x86_sse4_1"
# Build system only has --disable-arm-crypto-support right now
# If changing this, update src_configure logic too.
# ARM CPUs seem to, right now, support all-or-nothing for crypto extensions,
# but this looks like it might change in future. This is just a safety check
# in case people somehow do have a CPU which only supports some. They must
# for now disable them all if that's the case.
REQUIRED_USE="
cpu_flags_arm_aes? ( cpu_flags_arm_sha1 cpu_flags_arm_sha2 )
cpu_flags_arm_sha1? ( cpu_flags_arm_aes cpu_flags_arm_sha2 )
cpu_flags_arm_sha2? ( cpu_flags_arm_aes cpu_flags_arm_sha1 )
cpu_flags_ppc_vsx3? ( cpu_flags_ppc_altivec cpu_flags_ppc_vsx2 )
cpu_flags_ppc_vsx2? ( cpu_flags_ppc_altivec )
"
RDEPEND="
>=dev-libs/libgpg-error-1.49[${MULTILIB_USEDEP}]
getentropy? (
kernel_linux? (
elibc_glibc? ( >=sys-libs/glibc-2.25 )
elibc_musl? ( >=sys-libs/musl-1.1.20 )
)
)
"
DEPEND="${RDEPEND}"
BDEPEND="
doc? ( virtual/texi2dvi )
verify-sig? ( sec-keys/openpgp-keys-gnupg )
"
PATCHES=(
"${FILESDIR}"/${PN}-multilib-syspath.patch
"${FILESDIR}"/${PN}-powerpc-darwin.patch
"${FILESDIR}"/${P}-s390x.patch
"${FILESDIR}"/${P}-o-flag-munging.patch
)
MULTILIB_CHOST_TOOLS=(
/usr/bin/libgcrypt-config
)
pkg_pretend() {
if [[ ${MERGE_TYPE} == buildonly ]]; then
return
fi
if use kernel_linux && use getentropy; then
unset KV_FULL
get_running_version
if [[ -n ${KV_FULL} ]] && kernel_is -lt 3 17; then
eerror "The getentropy function requires the getrandom syscall."
eerror "This was introduced in Linux 3.17."
eerror "Your system is currently running Linux ${KV_FULL}."
eerror "Disable the 'getentropy' USE flag or upgrade your kernel."
die "Kernel is too old for getentropy"
fi
fi
}
pkg_setup() {
:
}
src_prepare() {
default
eautoreconf
}
src_configure() {
# Sensitive to optimisation; parts of the codebase are built with
# -O0 already. Don't risk it with UB.
strip-flags
multilib-minimal_src_configure
}
multilib_src_configure() {
if [[ ${CHOST} == powerpc* ]] ; then
# ./configure does a lot of automagic, prevent that
# generic ppc32+ppc64 altivec
use cpu_flags_ppc_altivec || local -x gcry_cv_cc_ppc_altivec=no
use cpu_flags_ppc_altivec || local -x gcry_cv_cc_ppc_altivec_cflags=no
# power8 vector extension, aka arch 2.07 ISA, also checked below via ppc-crypto-support
use cpu_flags_ppc_vsx2 || local -x gcry_cv_gcc_inline_asm_ppc_altivec=no
# power9 vector extension, aka arch 3.00 ISA
use cpu_flags_ppc_vsx3 || local -x gcry_cv_gcc_inline_asm_ppc_arch_3_00=no
fi
# Workaround for GCC < 11.3 bug
# https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commitdiff;h=0b399721ce9709ae25f9d2050360c5ab2115ae29
# https://dev.gnupg.org/T5581
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102124
if use arm64 && tc-is-gcc && (($(gcc-major-version) == 11)) &&
(($(gcc-minor-version) <= 2)) && (($(gcc-micro-version) == 0)) ; then
append-flags -fno-tree-loop-vectorize
fi
append-ldflags $(test-flags-CCLD -Wl,--undefined-version)
local myeconfargs=(
CC_FOR_BUILD="$(tc-getBUILD_CC)"
--enable-noexecstack
$(use_enable cpu_flags_arm_neon neon-support)
# See REQUIRED_USE comment above
$(use_enable cpu_flags_arm_aes arm-crypto-support)
$(use_enable cpu_flags_arm_sve sve-support)
$(use_enable cpu_flags_ppc_vsx2 ppc-crypto-support)
$(use_enable cpu_flags_x86_aes aesni-support)
$(use_enable cpu_flags_x86_avx avx-support)
$(use_enable cpu_flags_x86_avx2 avx2-support)
$(use_enable cpu_flags_x86_avx512f avx512-support)
$(use_enable cpu_flags_x86_padlock padlock-support)
$(use_enable cpu_flags_x86_sha shaext-support)
$(use_enable cpu_flags_x86_sse4_1 sse41-support)
# required for sys-power/suspend[crypt], bug 751568
$(use_enable static-libs static)
# disabled due to various applications requiring privileges
# after libgcrypt drops them (bug #468616)
--without-capabilities
$(use asm || echo "--disable-asm")
GPG_ERROR_CONFIG="${ESYSROOT}/usr/bin/${CHOST}-gpg-error-config"
)
if use kernel_linux; then
# --enable-random=getentropy requires getentropy/getrandom.
# --enable-random=linux enables legacy code that tries getrandom
# and falls back to reading /dev/random.
myeconfargs+=( --enable-random=$(usex getentropy getentropy linux) )
fi
ECONF_SOURCE="${S}" econf "${myeconfargs[@]}" \
$("${S}/configure" --help | grep -o -- '--without-.*-prefix')
}
multilib_src_compile() {
default
multilib_is_native_abi && use doc && VARTEXFONTS="${T}/fonts" emake -C doc gcrypt.pdf
}
multilib_src_test() {
# t-secmem and t-sexp need mlock which requires extra privileges; nspawn
# at least disallows that by default.
local -x GCRYPT_IN_ASAN_TEST=1
default
}
multilib_src_install() {
emake DESTDIR="${D}" install
multilib_is_native_abi && use doc && dodoc doc/gcrypt.pdf
}
multilib_src_install_all() {
default
find "${ED}" -type f -name '*.la' -delete || die
}
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