distributable:
  url: https://ftp.gnu.org/gnu/gcc/gcc-{{version.raw}}/gcc-{{ version.raw }}.tar.xz
  strip-components: 1

versions:
  github: gcc-mirror/gcc/tags
  strip: /^releases\/gcc-/

dependencies:
  darwin:
    apple.com/xcode/clt: '*' # MacOS.sdk
  linux:
    gnu.org/binutils: '*'  # linker needs `as`
  gnu.org/gmp: '>=4.2'
  gnu.org/mpfr: '>=2.4.0'
  gnu.org/mpc: '>=0.8.0'

build:
  dependencies:
    darwin:
      tea.xyz/gx/cc: c99
    linux:
      gnu.org/gcc: '*'
    gnu.org/make: '*'
    perl.org: '^5.6.1'
    gnu.org/patch: '*'
    curl.se: '*'
  working-directory: build
  script: |
    # Remove: cleanup bootstrap version
    if test -d {{deps.gnu.org/gcc.prefix}}/lib64; then
      mv {{deps.gnu.org/gcc.prefix}}/lib64/* {{deps.gnu.org/gcc.prefix}}/lib/
      rmdir {{deps.gnu.org/gcc.prefix}}/lib64
    fi

    # Branch from the Darwin maintainer of GCC, with a few generic fixes and
    # Apple Silicon support, located at https://github.com/iains/gcc-12-branch
    curl https://raw.githubusercontent.com/Homebrew/formula-patches/1d184289/gcc/gcc-12.2.0-arm.diff | patch -p1 -d..

    ARGS=($ARGS --with-pkgversion="tea GCC {{version}}")
    if test {{hw.platform}} = "linux"; then
      export ARGS=("${ARGS[@]}" --with-boot-ldflags="-static-libstdc++ -static-libgcc $LDFLAGS")
    fi

    ../configure "${ARGS[@]}"
    make --jobs {{ hw.concurrency }}
    make install

    cd {{prefix}}/bin
    # Since we depend on ourselves, this symlink might already exist
    test -f gc++ || ln -sf c++ gc++

    # On Linux, we need to move the libraries to the lib directory.
    if test {{hw.platform}} = "linux"; then
      cd {{prefix}}
      mv lib64/* lib/
      rmdir lib64
    fi
  env:
    ARGS:
      - --prefix={{ prefix }}
      - --libdir={{ prefix }}/lib
      - --enable-languages=c,c++,objc,obj-c++
      - --with-bugurl="https://github.com/teaxyz/pantry.extra/issues"
      - --disable-bootstrap
      - --disable-nls
    linux:
      ARGS:
        - --disable-multilib
        - --enable-default-pie
        - --enable-pie-tools
    darwin:
      ARGS:
        # Reliance on CLT hard path is yuck.
        - --with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
    darwin/aarch64:
      ARGS:
        # https://en.wikipedia.org/wiki/Darwin_(operating_system)#Darwin_16%E2%80%9319;_OS_X_rebranded_into_macOS
        - --build=aarch64-apple-darwin20.0.0
    darwin/x86-64:
      ARGS:
        - --build=x86_64-apple-darwin20.0.0

test: |
  gcc --version | grep -q "tea GCC {{version}}"
  gcc -print-libgcc-file-name
  gcc -print-multiarch
  gcc -dumpspecs
  gcc -o test1 test.c -lgmp
  ./test1
  g++ -o test2 test.cc
  test "$(./test2)" = "Hello, world!"

provides:
  - bin/gc++ # we provide c++ in tea.xyz/gx/cc
  - bin/cpp
  - bin/g++
  - bin/gcc
  - bin/gcc-ar
  - bin/gcc-nm
  - bin/gcc-ranlib
  - bin/gcov
  - bin/gcov-dump
  - bin/gcov-tool
  - bin/lto-dump