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guru/dev-lang/swift/swift-6.1.ebuild
Katalin Rebhan 788804b6b5 dev-lang/swift: Correctly merge extra build flags 
The build script complains when the same option occurs multiple
times in the same preset, but merges them when they occur in separate
presets. Therefore restore the code that creates a stack of presets
with one for each subsequent argument, instead of packing them all
into a single preset.

Signed-off-by: Katalin Rebhan <me@dblsaiko.net>
2025-07-05 19:44:18 +02:00

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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
LLVM_COMPAT=( {15..19} )
PYTHON_COMPAT=( python3_{11..13} )
inherit llvm-r1 python-single-r1 toolchain-funcs
DESCRIPTION="A high-level, general-purpose, multi-paradigm, compiled programming language"
HOMEPAGE="https://www.swift.org"
SRC_URI="
https://github.com/apple/swift-argument-parser/archive/refs/tags/1.4.0.tar.gz -> swift-argument-parser-1.4.0.tar.gz
https://github.com/apple/swift-asn1/archive/refs/tags/1.0.0.tar.gz -> swift-asn1-1.0.0.tar.gz
https://github.com/apple/swift-async-algorithms/archive/refs/tags/1.0.1.tar.gz -> swift-async-algorithms-1.0.0.tar.gz
https://github.com/apple/swift-atomics/archive/refs/tags/1.2.0.tar.gz -> swift-atomics-1.2.0.tar.gz
https://github.com/apple/swift-certificates/archive/refs/tags/1.0.1.tar.gz -> swift-certificates-1.0.1.tar.gz
https://github.com/apple/swift-collections/archive/refs/tags/1.1.3.tar.gz -> swift-collections-1.1.3.tar.gz
https://github.com/apple/swift-crypto/archive/refs/tags/3.0.0.tar.gz -> swift-crypto-3.0.0.tar.gz
https://github.com/apple/swift-log/archive/refs/tags/1.5.4.tar.gz -> swift-log-1.5.4.tar.gz
https://github.com/apple/swift-nio/archive/refs/tags/2.65.0.tar.gz -> swift-nio-2.65.0.tar.gz
https://github.com/apple/swift-numerics/archive/refs/tags/1.0.2.tar.gz -> swift-numerics-1.0.2.tar.gz
https://github.com/apple/swift-system/archive/refs/tags/1.3.0.tar.gz -> swift-system-1.3.0.tar.gz
https://github.com/jpsim/Yams/archive/refs/tags/5.0.6.tar.gz -> Yams-5.0.6.tar.gz
https://github.com/swiftlang/indexstore-db/archive/refs/tags/${P}-RELEASE.tar.gz -> indexstore-db-${PV}.tar.gz
https://github.com/swiftlang/llvm-project/archive/refs/tags/${P}-RELEASE.tar.gz -> llvm-project-${PV}.tar.gz
https://github.com/swiftlang/sourcekit-lsp/archive/refs/tags/${P}-RELEASE.tar.gz -> sourcekit-lsp-${PV}.tar.gz
https://github.com/swiftlang/swift-cmark/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-cmark-${PV}.tar.gz
https://github.com/swiftlang/swift-corelibs-foundation/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-corelibs-foundation-${PV}.tar.gz
https://github.com/swiftlang/swift-corelibs-libdispatch/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-corelibs-libdispatch-${PV}.tar.gz
https://github.com/swiftlang/swift-corelibs-xctest/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-corelibs-xctest-${PV}.tar.gz
https://github.com/swiftlang/swift-docc-render-artifact/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-docc-render-artifact-${PV}.tar.gz
https://github.com/swiftlang/swift-docc-symbolkit/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-docc-symbolkit-${PV}.tar.gz
https://github.com/swiftlang/swift-docc/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-docc-${PV}.tar.gz
https://github.com/swiftlang/swift-driver/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-driver-${PV}.tar.gz
https://github.com/swiftlang/swift-experimental-string-processing/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-experimental-string-processing-${PV}.tar.gz
https://github.com/swiftlang/swift-format/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-format-${PV}.tar.gz
https://github.com/swiftlang/swift-foundation-icu/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-foundation-icu-${PV}.tar.gz
https://github.com/swiftlang/swift-foundation/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-foundation-${PV}.tar.gz
https://github.com/swiftlang/swift-installer-scripts/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-installer-scripts-${PV}.tar.gz
https://github.com/swiftlang/swift-integration-tests/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-integration-tests-${PV}.tar.gz
https://github.com/swiftlang/swift-llbuild/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-llbuild-${PV}.tar.gz
https://github.com/swiftlang/swift-llvm-bindings/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-llvm-bindings-${PV}.tar.gz
https://github.com/swiftlang/swift-lmdb/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-lmdb-${PV}.tar.gz
https://github.com/swiftlang/swift-markdown/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-markdown-${PV}.tar.gz
https://github.com/swiftlang/swift-package-manager/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-package-manager-${PV}.tar.gz
https://github.com/swiftlang/swift-stress-tester/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-stress-tester-${PV}.tar.gz
https://github.com/swiftlang/swift-syntax/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-syntax-${PV}.tar.gz
https://github.com/swiftlang/swift-testing/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-testing-${PV}.tar.gz
https://github.com/swiftlang/swift-toolchain-sqlite/archive/refs/tags/1.0.1.tar.gz -> swift-toolchain-sqlite-1.0.1.tar.gz
https://github.com/swiftlang/swift-tools-support-core/archive/refs/tags/${P}-RELEASE.tar.gz -> swift-tools-support-core-${PV}.tar.gz
https://github.com/swiftlang/swift/archive/refs/tags/${P}-RELEASE.tar.gz -> ${P}.tar.gz
"
PATCHES=(
"${FILESDIR}/${PF}/backtracing-noexecstack.patch"
"${FILESDIR}/${PF}/disable-libdispatch-werror.patch"
"${FILESDIR}/${PF}/link-ncurses-tinfo.patch"
"${FILESDIR}/${PF}/link-with-lld.patch"
"${FILESDIR}/${PF}/respect-c-cxx-flags.patch"
)
S="${WORKDIR}"
LICENSE="Apache-2.0"
SLOT="6/1"
KEYWORDS="~amd64"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"
RESTRICT="strip"
RDEPEND="
${PYTHON_DEPS}
!~dev-lang/swift-5.10.1:0
>=app-arch/zstd-1.5
>=app-eselect/eselect-swift-1.0-r1
>=dev-db/sqlite-3
>=dev-libs/icu-69
>=dev-libs/libedit-20221030
>=dev-libs/libxml2-2.11.5
>=net-misc/curl-8.9.1
>=sys-libs/ncurses-6
>=sys-libs/zlib-1.3.1
dev-lang/python
$(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}=')
"
BDEPEND="
${PYTHON_DEPS}
>=dev-build/cmake-3.30.2
>=dev-build/ninja-1.11.1
>=dev-db/sqlite-3
>=dev-libs/icu-69
>=dev-libs/libedit-20221030
>=dev-libs/libxml2-2.11.5
>=dev-util/patchelf-0.18
>=dev-vcs/git-2.39
>=sys-apps/coreutils-9
>=sys-devel/gcc-11
>=sys-libs/ncurses-6
>=sys-libs/zlib-1.3.1
|| (
dev-lang/swift
dev-lang/swift-bootstrap
)
$(llvm_gen_dep '
llvm-core/clang:${LLVM_SLOT}=
llvm-core/lld:${LLVM_SLOT}=
')
dev-lang/python
$(python_gen_cond_dep '
dev-python/setuptools[${PYTHON_USEDEP}]
' python3_{12..13})
"
SWIFT_BUILD_PRESETS_INI_PATH="${S}/gentoo-build-presets.ini"
SWIFT_BUILD_PRESET='gentoo'
PKG_PREINST_SWIFT_INTENTIONALLY_SET='true'
# Adapted from `flag-o-matic.eclass`'s `raw-ldflags`: turns GCC-style flags
# (`-Wl,-foo`) into Clang-style flags (`-Xlinker -foo`).
clang-ldflags() {
local flag input="$@"
[[ -z ${input} ]] && input=${LDFLAGS}
set --
for flag in ${input//,/ } ; do
case ${flag} in
-Wl) ;;
*) set -- "$@" "-Xlinker ${flag}" ;;
esac
done
echo "$@"
}
pkg_setup() {
# Sets `${EPYTHON}` according to `PYTHON_SINGLE_TARGET`, sets up
# `${T}/${EPYTHON}` with that version, and adds it to the `PATH`.
python_setup
# Sets up `PATH` to point to the appropriate LLVM toolchain, and ensure
# we're using the toolchain for compilation.
llvm-r1_pkg_setup
}
src_unpack() {
default
# The Swift project expects a specific directory structure that we have to
# match. For most directories, it's enough to trim the version number at the
# end:
find "${S}" \
-mindepth 1 -maxdepth 1 \
-execdir sh -c \
"mv '{}' \"\$(echo '{}' | sed -e 's_-\(swift-${PV}-RELEASE\|\([0-9]\+\.\)*[0-9]\+\)\$__' | tr '[:upper:]' '[:lower:]')\"" ';' \
|| die
# Some one-off fixups:
pushd "${S}" \
&& mv 'swift-cmark' 'cmark' \
&& mv 'swift-llbuild' 'llbuild' \
&& mv 'swift-package-manager' 'swiftpm' \
&& popd \
|| die
}
src_configure() {
CC="$(type -P clang)"
CXX="$(type -P clang++)"
LD="$(type -P ld.lld)"
# Swift builds with CMake, which picks up `LDFLAGS` from the environment and
# populates `CMAKE_EXE_LINKER_FLAGS` with them. `LDFLAGS` are typically
# given as GCC-style flags (`-Wlinker,foo`), which Clang understands;
# unfortunately, CMake passes these flags to all compilers under the
# assumption they support the same syntax, but `swiftc` _only_ understands
# Clang-style flags (`-Xlinker -foo`). In order to pass `LDFLAGS` in, we
# have to turn them into a format that `swiftc` will understand.
#
# We can do this because we know we're compiling with Clang specifically.
export LDFLAGS="$(clang-ldflags)"
# Extend the 'gentoo' build preset with user-specified flags and flags for
# libc++ systems.
cp "${FILESDIR}/${PF}/gentoo.ini" "${SWIFT_BUILD_PRESETS_INI_PATH}"
local extra_build_flags=()
# Setting `-j<n>`/`--jobs=<n>` in MAKEOPTS needs to be manually exposed to
# the Swift build system.
if [[ -n "${MAKEOPTS}" ]]; then
local num_jobs make_opts=( $(getopt -qu -o 'j:' -l 'jobs:' -- ${MAKEOPTS}) )
while [[ "${#make_opts[@]}" -gt 1 ]]; do
case "${make_opts[0]}" in
-j | --jobs )
num_jobs="${make_opts[1]}"
make_opts=("${make_opts[@]:2}") ;;
-- ) break ;;
* ) make_opts=("${make_opts[@]:1}") ;;
esac
done
if [[ -n "${num_jobs}" ]]; then
extra_build_flags+=(--jobs="${num_jobs}")
fi
fi
if [[ "$(tc-get-cxx-stdlib)" = 'libc++' ]]; then
# On systems which use libc++ as their default C++ stdlib (e.g. systems
# with the LLVM profile), we want to build the internal libc++ and
# ensure we link against it.
extra_build_flags+=(
--libcxx
--extra-cmake-options=-DCLANG_DEFAULT_CXX_STDLIB=libc++
)
fi
extra_build_flags+=(${SWIFT_EXTRA_BUILD_FLAGS})
local orig_preset="${SWIFT_BUILD_PRESET}"
local preset="${orig_preset}"
local n=1
{
for arg in "${extra_build_flags[@]}"; do
local next="${orig_preset},${n}"
printf '[preset: %s]\n' "${next}"
printf 'mixin-preset=%s\n' "${preset}"
echo "${arg#--}"
preset="${next}"
n="$((n + 1))"
done
} >> "${SWIFT_BUILD_PRESETS_INI_PATH}"
SWIFT_BUILD_PRESET="${preset}"
}
src_compile() {
# Building swift-driver writes to this directory for some reason, but the
# contents are irrelevant.
addpredict /var/lib/portage/home/.swiftpm
# Versions of Swift 6.0 and later require an existing Swift compiler to
# bootstrap from. We can use any version from 5.10.1 and on.
local swift_version="$(best_version -b "${CATEGORY}/${PN}")"
swift_version="${swift_version#${CATEGORY}/}" # reduce to ${PVR} form
swift_version="${swift_version%-r[[:digit:]]*}" # reduce to ${P} form
local original_path="${PATH}"
export PATH="/usr/lib64/${swift_version}/usr/bin:${original_path}"
"${S}/swift/utils/build-script" \
--preset-file="${S}/swift/utils/build-presets.ini" \
--preset-file="${SWIFT_BUILD_PRESETS_INI_PATH}" \
--preset="${SWIFT_BUILD_PRESET}" \
install_destdir="${S}/${P}" \
installable_package="" \
|| die
export PATH="${original_path}"
}
src_install() {
# `libTesting` as built has its RPATH set to the absolute path to its
# containing dir, which is in the build sandbox. This directory won't exist
# after installation, and is the same as '$ORIGIN'.
patchelf --set-rpath '$ORIGIN' "${S}/${P}/usr/lib/swift/linux/libTesting.so" || die
# The Swift build output is intended to be self-contained, and is
# _significantly_ easier to leave as-is than attempt to splat onto the
# filesystem; we'll install the output versioned into `/usr/lib64` and
# expose the relevant binaries via linking.
local dest_dir="/usr/lib64/${P}"
mkdir -p "${ED}/${dest_dir}" \
&& cp -pPR "${S}/${P}/." "${ED}/${dest_dir}" \
|| die
# Swift ships with its own `clang`, `lldb`, etc.; we don't want these to be
# exposed externally, so we'll just symlink Swift-specific binaries into
# `/usr/bin`. (The majority of executables don't need to be exposed as
# `swift <command>` calls `swift-<command>` directly.)
local bin
for bin in swift swiftc sourcekit-lsp; do
# We only install versioned symlinks; non-versioned links are maanged
# via `eselect swift`.
dosym -r "${dest_dir}/usr/bin/${bin}" "/usr/bin/${bin}-${PV}"
done
}
pkg_preinst() {
# After installation, we ideally want the system to have the latest Swift
# version set -- but if the system already has a Swift version set and it
# isn't the latest version, that's likely an intentional decision that we
# don't want to override.
local current_swift_version="$(eselect swift show | tail -n1 | xargs)"
local latest_swift_version="$(eselect swift show --latest | tail -n1 | xargs)"
[[ "${current_swift_version}" == '(unset)' ]] \
|| [[ "${current_swift_version}" == "${latest_swift_version}" ]] \
&& PKG_PREINST_SWIFT_INTENTIONALLY_SET='false'
}
pkg_postinst() {
# If the system doesn't have Swift intentionally set to an older version, we
# can update to the latest.
if [[ "${PKG_PREINST_SWIFT_INTENTIONALLY_SET}" == 'false' ]]; then
eselect swift update
fi
}
pkg_postrm() {
# We don't want to leave behind symlinks pointing to this Swift version on
# removal.
local current_swift_version="$(eselect swift show | tail -n1 | xargs)"
if [[ "${current_swift_version}" == "${P}" ]]; then
eselect swift update
fi
}
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