#!/bin/mkpkg
# description: Rust programming language
# url: https://www.rust-lang.org/
# https://releases.rs/docs/1.98.0/

name=rust
version=1.98.1
_bootstrap=1.97.1
_date=2026-07-16
release=2
depends=(llvm)
makedeps=(cmake ninja python3 gcc-compat)
source=(
    https://static.rust-lang.org/dist/rustc-$version-src.tar.xz
    https://static.rust-lang.org/dist/$_date/rust-std-$_bootstrap-x86_64-unknown-linux-musl.tar.xz
    https://static.rust-lang.org/dist/$_date/rustc-$_bootstrap-x86_64-unknown-linux-musl.tar.xz
    https://static.rust-lang.org/dist/$_date/cargo-$_bootstrap-x86_64-unknown-linux-musl.tar.xz
    system.diff
    musl-no-crt-static.patch
    libressl-openssl-sys.patch
)

sha256sums=(
    "be1816e7f6c40abb90245ad6e024bed2a7e88d7dda4561e4d5470207df616b9f"
    "51d83178680556f73a5fa8ad865b76a1ff541867445c00fc65dc67246bc2de66"
    "1b1f926d3b5bf8036c858180dbc9518c6c317154718ee5c5460bb23d23bacf5d"
    "623a1315bdbddc5e7a807aaf7e1911d1435a294758e170b8758f49fc57a3e67c"
    "c812b442131f53a6a614cba20bcd007ab0eee8583bd423d75038b90ebc87f323"
    "8b7d3beb08cc22a4477b238eff22d91b249ea4c5344911f6fc3c279342538e35"
    "0e5cd25e3680e75494b9d58783106723a97ef74bf70c9237bbb088fbc948a5d2"
)

extract() {
    cp system.diff $SRC/ 
    cp musl-no-crt-static.patch $SRC/ 
    cp libressl-openssl-sys.patch $SRC/
    tar -xf $PKGMK_SOURCE_DIR/rustc-$version-src.tar.xz -C $SRC

    mkdir -p $SRC/rustc-$version-src/build/cache/$_date
    cp rust-std-$_bootstrap-x86_64-unknown-linux-musl.tar.xz $SRC/rustc-$version-src/build/cache/$_date/
    cp rustc-$_bootstrap-x86_64-unknown-linux-musl.tar.xz $SRC/rustc-$version-src/build/cache/$_date/
    cp cargo-$_bootstrap-x86_64-unknown-linux-musl.tar.xz $SRC/rustc-$version-src/build/cache/$_date/
}

patch() {
    cd rustc-$version-src
    patch -p1 -i $SRC/system.diff
    patch -p1 -i $SRC/musl-no-crt-static.patch
    patch -p1 -i $SRC/libressl-openssl-sys.patch

    # LLVM 23 dropped X86 FeatureAMXTF32 (Intel removed AMX-TF32 from the ISA).
    # rustc 1.98 still probes it via LLVMRustHasFeature(), now fatal, and
    # core_arch still defines the intrinsics. Fixed upstream in
    # rust-lang/rust#159310, landing in 1.99.0.
    sed -i '/"amx-tf32"/d' compiler/rustc_target/src/target_features.rs
    sed -i '/amx.tf32/Id' library/std_detect/src/detect/arch/x86.rs
    sed -i '/amx_tf32/d'  library/std_detect/src/detect/os/x86.rs
    sed -i '/amx-tf32/d'  library/std_detect/tests/x86-specific.rs
    sed -i '\%^/// Perform matrix multiplication of two tiles a and b, containing packed single precision%,/^}$/d' \
        library/stdarch/crates/core_arch/src/x86_64/amx.rs
    sed -i '/llvm\.x86\.tmmultf32ps/,+1d' \
        library/stdarch/crates/core_arch/src/x86_64/amx.rs
}

build() {
    cd rustc-$version-src

    cat > bootstrap.toml <<EOF
change-id = "ignore"
[llvm]
link-shared = true
use-libcxx = true
static-libstdcpp = false
[build]
build = "x86_64-unknown-linux-musl"
host = ["x86_64-unknown-linux-musl"]
target = ["x86_64-unknown-linux-musl"]
docs = false
extended = true
tools = ["cargo", "rustfmt", "clippy", "rust-analyzer"]
vendor = true
[install]
prefix = "/usr"
[rust]
channel = "stable"
codegen-units = 1
lto = "off"
llvm-libunwind = "system"
[target.x86_64-unknown-linux-musl]
llvm-config = "/usr/bin/llvm-config"
crt-static = false
cc = "clang"
cxx = "clang++"
ar = "llvm-ar"
ranlib = "llvm-ranlib"
linker = "clang"
rustflags = ["-C", "link-arg=-lunwind"]
EOF
    python3 x.py build
    DESTDIR=$PKG python3 x.py install

    rm -rf $PKG/usr/share/doc
    rm -f $PKG/usr/lib/rustlib/install.log
    rm -f $PKG/usr/lib/rustlib/uninstall.sh
    rm -f $PKG/usr/lib/rustlib/manifest-*
    rm -f $PKG/usr/lib/rustlib/components
    rm -f $PKG/usr/lib/rustlib/rust-installer-version
}

signify() {
    untrusted comment: public key
    RWTZ9IduCSQ/mL8337TEUinPwT92xFEUpD92hkS7IxcOnzTt9QdpohT3
}

# vim: filetype=sh