# Native GCC 13.2.0 for Red Bear OS
# Produces GCC that RUNS on x86_64-unknown-redox and TARGETS x86_64-unknown-redox.
# Built via cross-compilation from the host using the existing cross-compiler in prefix/.
#
# This is Strategy A from BUILD-TOOLS-PORTING-PLAN.md: pre-built native toolchain
# produced by cross-compilation, avoiding the multi-stage self-hosting bootstrap.
#
# To use: repo cook local/recipes/dev/gcc-native
# The resulting gcc binary runs inside Red Bear OS.

[source]
same_as = "../../../../recipes/dev/gcc13"

[build]
template = "custom"
dependencies = [
    "gcc13",
    "gcc13.cxx",
    "gnu-binutils",
    "libgmp",
    "libmpfr",
    "mpc",
]
script = """
DYNAMIC_INIT

# Use the cross-compiler to produce native redox binaries
export CC="${GNU_TARGET}-gcc"
export CXX="${GNU_TARGET}-g++"
export AR="${GNU_TARGET}-ar"
export RANLIB="${GNU_TARGET}-ranlib"
export LD="${GNU_TARGET}-ld"
export NM="${GNU_TARGET}-nm"
export STRIP="${GNU_TARGET}-strip"

# Configure for native compilation: host AND target are both redox
COOKBOOK_CONFIGURE_FLAGS+=(
    --host="${GNU_TARGET}"
    --target="${GNU_TARGET}"
    --prefix=/usr
    --with-sysroot="${COOKBOOK_SYSROOT}"
    --with-gmp="${COOKBOOK_SYSROOT}/usr"
    --with-mpfr="${COOKBOOK_SYSROOT}/usr"
    --with-mpc="${COOKBOOK_SYSROOT}/usr"
    --with-linker-hash-style=gnu
    --enable-languages=c,c++,lto
    --enable-initfini-array
    --disable-nls
    --disable-multilib
    --enable-host-shared
    --enable-threads=posix
    --enable-libstdcxx-threads
    --disable-bootstrap
    --with-bugurl="https://gitlab.redox-os.org/redox-os/gcc/-/issues"
)

"${COOKBOOK_CONFIGURE}" "${COOKBOOK_CONFIGURE_FLAGS[@]}"
"${COOKBOOK_MAKE}" -j "${COOKBOOK_MAKE_JOBS}" all-gcc all-target-libgcc all-target-libstdc++-v3
"${COOKBOOK_MAKE}" install-gcc install-target-libgcc install-target-libstdc++-v3 DESTDIR="${COOKBOOK_STAGE}"

# Native GCC doesn't need the target prefix
for tool in gcc g++ c++ cpp gcc-ar gcc-nm gcc-ranlib gcov gcov-dump gcov-tool gfortran; do
    if [ -f "${COOKBOOK_STAGE}/usr/bin/${GNU_TARGET}-${tool}" ]; then
        ln -sf "${GNU_TARGET}-${tool}" "${COOKBOOK_STAGE}/usr/bin/${tool}"
    fi
done

# Provide cc symlink
ln -sf gcc "${COOKBOOK_STAGE}/usr/bin/cc"

# Remove libtool archives
rm -f "${COOKBOOK_STAGE}"/usr/lib/libgcc_s.so* "${COOKBOOK_STAGE}"/usr/lib/libstdc++.so*
rm -f "${COOKBOOK_STAGE}"/usr/lib/*.la

# Copy libgcc and libstdc++ into target lib dir
mkdir -p "${COOKBOOK_STAGE}/usr/lib/${GNU_TARGET}"
cp -a "${COOKBOOK_STAGE}"/usr/lib/gcc/${GNU_TARGET}/13.2.0/libgcc.a "${COOKBOOK_STAGE}/usr/lib/${GNU_TARGET}/" || true
cp -a "${COOKBOOK_STAGE}"/usr/lib/gcc/${GNU_TARGET}/13.2.0/libgcc_eh.a "${COOKBOOK_STAGE}/usr/lib/${GNU_TARGET}/" || true
"""

[package]
description = "Native GCC 13.2.0 compiler for Red Bear OS (runs on redox, targets redox)"
dependencies = ["gnu-binutils"]

[[optional-packages]]
name = "cxx"
dependencies = []
files = [
    "usr/bin/*c++",
    "usr/bin/*g++",
    "usr/bin/g++",
    "usr/include/c++/**",
    "usr/lib/*c++*",
    "usr/libexec/gcc/**/cc1plus",
    "usr/share/gcc-*/python/libstdcxx/**",
]