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# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
LLVM_COMPAT=( {19..22} )
inherit cmake flag-o-matic llvm-r2 toolchain-funcs
DESCRIPTION="A wine emulation dll for running x86 application on an arm64 host"
HOMEPAGE="https://fex-emu.com"
RPMALLOC_HASH="1d85c246cd827ead6865f4f880d4fef53f2b1864"
CPP_OPTPARSE_HASH="9f94388a339fcbb0bc95c17768eb786c85988f6e"
UNORDERED_DENSE_HASH="3234af2c03549bc85656bfd3a86993bf1cd8aef1"
FMT_HASH="407c905e45ad75fc29bf0f9bb7c5c2fd3475976f"
XXHASH_HASH="e626a72bc2321cd320e953a0ccf1584cad60f363"
RANGE_V3_HASH="ca1388fb9da8e69314dda222dc7b139ca84e092f"
SRC_URI="
https://github.com/FEX-Emu/rpmalloc/archive/${RPMALLOC_HASH}.tar.gz -> rpmalloc-${RPMALLOC_HASH}.tar.gz
https://github.com/Sonicadvance1/cpp-optparse/archive/${CPP_OPTPARSE_HASH}.tar.gz
-> cpp-optparse-${CPP_OPTPARSE_HASH}.tar.gz
https://github.com/martinus/unordered_dense/archive/${UNORDERED_DENSE_HASH}.tar.gz
-> unordered_dense-${UNORDERED_DENSE_HASH}.tar.gz
https://github.com/Cyan4973/xxHash/archive/${XXHASH_HASH}.tar.gz -> xxhash-${XXHASH_HASH}.tar.gz
https://github.com/fmtlib/fmt/archive/${FMT_HASH}.tar.gz -> fmt-${FMT_HASH}.tar.gz
https://github.com/ericniebler/range-v3/archive/${RANGE_V3_HASH}.tar.gz -> range-v3-${RANGE_V3_HASH}.tar.gz
https://github.com/FEX-Emu/FEX/archive/refs/tags/FEX-${PV}.tar.gz
"
S="${WORKDIR}/FEX-FEX-${PV}"
LICENSE="MIT"
SLOT="0"
KEYWORDS="-* ~arm64"
IUSE="+wow64 +arm64ec"
REQUIRED_USE="|| ( wow64 arm64ec )"
BDEPEND="
arm64ec? ( dev-util/llvm-mingw64[arm64ec-pe(-)] )
dev-build/cmake
>=dev-util/llvm-mingw64-13.0.0
$(llvm_gen_dep '
llvm-core/llvm:${LLVM_SLOT}=
llvm-core/clang:${LLVM_SLOT}=
')
"
pkg_setup() {
HOSTS=(
$(usev wow64 aarch64-w64-mingw32)
$(usev arm64ec arm64ec-w64-mingw32)
)
llvm-r2_pkg_setup
}
src_unpack() {
default
local -A deps=(
rpmalloc "rpmalloc-${RPMALLOC_HASH}"
unordered_dense "unordered_dense-${UNORDERED_DENSE_HASH}"
xxhash "xxHash-${XXHASH_HASH}"
fmt "fmt-${FMT_HASH}"
range-v3 "range-v3-${RANGE_V3_HASH}"
)
for dep in "${!deps[@]}"; do
rmdir "${S}/External/${dep}" || die
mv "${WORKDIR}/${deps[${dep}]}" "${S}/External/${dep}"
done
rmdir "${S}/Source/Common/cpp-optparse" || die
mv "${WORKDIR}/cpp-optparse-${CPP_OPTPARSE_HASH}" "${S}/Source/Common/cpp-optparse" || die
}
src_configure() {
for CHOST in ${HOSTS[@]}; do
( per_host_src_configure )
done
}
setup_env() {
PATH="${BROOT}/usr/lib/llvm-mingw64/bin:${PATH}"
CC=${CHOST}-clang
CXX=${CHOST}-clang++
LD=${CHOST}-clang
AR=llvm-ar
NM=llvm-nm
RANLIB=llvm-ranlib
STRIP=llvm-strip
RC=${CHOST}-windres
KERNEL=Winnt
tc-export CC CXX LD AR NM OBJDUMP RANLIB PKG_CONFIG
strip-flags
filter-lto
filter-flags '-fuse-ld=*'
strip-unsupported-flags
}
per_host_src_configure() {
BUILD_DIR="${WORKDIR}/${CHOST}-build-unixlib"
CMAKE_USE_DIR="${S}/Source/Windows/UnixLib"
mkdir "${BUILD_DIR}" || die
local mycmakeargs=(
-DCMAKE_CXX_COMPILER_WORKS=1
-DCMAKE_BUILD_TYPE=Release
-DCMAKE_INSTALL_LIBDIR=/usr/lib/fex-xtajit
)
cmake_src_configure
setup_env
# cmake_src_prepare smushes our toolchain file unconditionally,
# so we can't use it for the NT side
BUILD_DIR="${WORKDIR}/${CHOST}-build"
mkdir "${BUILD_DIR}" || die
pushd "${BUILD_DIR}" >/dev/null || die
cmake -GNinja \
-DCMAKE_C_COMPILER_WORKS=1 \
-DCMAKE_CXX_COMPILER_WORKS=1 \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_TOOLCHAIN_FILE="${S}/Data/CMake/toolchain_mingw.cmake" \
-DCMAKE_INSTALL_LIBDIR=/usr/lib/fex-xtajit \
-DENABLE_LTO=False \
-DMINGW_TRIPLE=${CHOST} \
-DBUILD_TESTING=False \
-DENABLE_JEMALLOC_GLIBC_ALLOC=False \
-DCMAKE_INSTALL_PREFIX=/usr \
-DENABLE_CCACHE=FALSE \
-DBUILD_FEXCONFIG=FALSE \
-DCMAKE_DISABLE_FIND_PACKAGE_fmt=true \
-DCMAKE_DISABLE_FIND_PACKAGE_range-v3=true \
"${S}" || die
popd >/dev/null || die
}
src_compile() {
for CHOST in ${HOSTS[@]}; do
( per_host_src_compile )
done
}
per_host_src_compile() {
BUILD_DIR="${WORKDIR}/${CHOST}-build-unixlib"
cmake_src_compile
setup_env
BUILD_DIR="${WORKDIR}/${CHOST}-build"
cmake_src_compile
}
src_install() {
for CHOST in ${HOSTS[@]}; do
( per_host_src_install )
done
}
per_host_src_install() {
BUILD_DIR="${WORKDIR}/${CHOST}-build-unixlib"
cmake_src_install
setup_env
BUILD_DIR="${WORKDIR}/${CHOST}-build"
cmake_src_install
rm -r "${ED}/usr/"{include,share} || die
}
pkg_postinst() {
elog "If you had already created a wine prefix, run wineboot -u"
elog "to install x86 emulation support, or update it's local copy"
elog "of the relevant files."
}
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