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sin-ack
8ac2ad8883
There are three different problems being addressed here: 1. Recent Folly versions depend on liburing features that have not yet been released. 2. Folly has no build system configuration option to disable io_uring support. 3. Folly's CMake build system will unconditionally add liburing as a library to link against, which downstream Facebook libraries rely on. The third one creates an implicit dependency between Folly and liburing which means if liburing gets depcleaned or otherwise unmerged, other Facebook packages will fail to build. We solve this by conditionally patching out io_uring support based on USE=io-uring and having a (currently technically invalid) dependency on the yet-unreleased liburing-2.10, which will make it automagically start working once we do have that release in ::gentoo. Ref: https://github.com/facebook/folly/issues/2420 Bug: https://bugs.gentoo.org/954335 Signed-off-by: sin-ack <sin-ack@protonmail.com> Part-of: https://github.com/gentoo/gentoo/pull/41734 Signed-off-by: Sam James <sam@gentoo.org>
123 lines
2.8 KiB
Bash
123 lines
2.8 KiB
Bash
# Copyright 1999-2025 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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# These must be bumped together:
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# dev-cpp/edencommon
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# dev-cpp/fb303
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# dev-cpp/fbthrift
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# dev-cpp/fizz
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# dev-cpp/folly
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# dev-cpp/mvfst
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# dev-cpp/wangle
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# dev-util/watchman
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inherit flag-o-matic cmake toolchain-funcs
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DESCRIPTION="An open-source C++ library developed and used at Facebook"
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HOMEPAGE="https://github.com/facebook/folly"
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SRC_URI="https://github.com/facebook/folly/releases/download/v${PV}/${PN}-v${PV}.tar.gz"
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LICENSE="Apache-2.0"
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SLOT="0/${PV}"
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KEYWORDS="~amd64 ~arm64 ~ppc64"
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IUSE="io-uring llvm-libunwind test"
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RESTRICT="!test? ( test )"
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RDEPEND="
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app-arch/bzip2
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app-arch/lz4:=
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app-arch/snappy:=
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app-arch/xz-utils
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app-arch/zstd:=
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dev-cpp/fast_float:=
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dev-cpp/gflags:=
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dev-cpp/glog:=[gflags]
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dev-libs/boost:=[context]
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dev-libs/double-conversion:=
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dev-libs/libaio
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dev-libs/libevent:=
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dev-libs/libfmt:=
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dev-libs/libsodium:=
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dev-libs/openssl:=
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sys-libs/zlib
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llvm-libunwind? ( llvm-runtimes/libunwind:= )
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!llvm-libunwind? ( sys-libs/libunwind:= )
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io-uring? ( >=sys-libs/liburing-2.10:= )
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"
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DEPEND="
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${RDEPEND}
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sys-libs/binutils-libs
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test? ( dev-cpp/gtest )
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"
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PATCHES=(
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"${FILESDIR}"/${PN}-2024.11.04.00-musl-fix.patch
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)
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src_unpack() {
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# Workaround for bug #889420
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mkdir -p "${S}" || die
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cd "${S}" || die
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default
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}
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src_prepare() {
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# Folly has no configuration option for disabling io_uring support
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# so we need to patch it out.
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if use !io-uring; then
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eapply "${FILESDIR}"/${PN}-2025.04.14.00-force-liburing-off.patch
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eapply "${FILESDIR}"/${PN}-2025.04.14.00-CMake-Avoid-finding-liburing.patch
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fi
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cmake_src_prepare
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}
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src_configure() {
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local mycmakeargs=(
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-DCMAKE_INSTALL_DIR="$(get_libdir)/cmake/${PN}"
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-DLIB_INSTALL_DIR="$(get_libdir)"
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-DBUILD_TESTS=$(usex test)
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# https://github.com/gentoo/gentoo/pull/29393
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-DCMAKE_LIBRARY_ARCHITECTURE=$(usex amd64 x86_64 ${ARCH})
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)
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# https://github.com/facebook/folly/issues/1984
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use arm64 && append-cxxflags "-flax-vector-conversions"
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cmake_src_configure
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}
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src_test() {
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CMAKE_SKIP_TESTS=(
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# Mysterious "invalid json" failure
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io_async_ssl_session_test.SSLSessionTest
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singleton_thread_local_test.SingletonThreadLocalDeathTest
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# TODO: All SIGSEGV, report upstream!
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'concurrency_concurrent_hash_map_test.*'
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)
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if use arm64; then
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CMAKE_SKIP_TESTS+=(
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# Tests are flaky/timing dependent on both QEMU chroot and real hardware
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io_async_hh_wheel_timer_test.HHWheelTimerTest
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# Times out on real hardware
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concurrent_skip_list_test.ConcurrentSkipList
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futures_retrying_test.RetryingTest.largeRetries
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)
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fi
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if [[ $(tc-get-cxx-stdlib) == libc++ ]]; then
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CMAKE_SKIP_TESTS+=(
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# Aborts with libc++.
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# https://github.com/facebook/folly/issues/2345
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buffered_atomic_test.BufferedAtomic.singleThreadUnguardedAccess
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)
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fi
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cmake_src_test
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}
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