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:
  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:
    linux:
      gnu.org/gcc: '*'
    gnu.org/make: '*'
    perl.org: '^5.6.1'
    gnu.org/patch: '*'
    curl.se: '*'
    github.com/westes/flex: '*'
  working-directory: build
  script:
    # If we have a patch, apply it
    - |
      if test "{{hw.platform}}+{{hw.arch}}" = "darwin+aarch64"; then
        if test -n "$PATCH{{version.major}}{{version.minor}}"; then
          curl "$PATCH{{version.major}}{{version.minor}}" | patch -p1 -d..
        fi
      fi

    # if there's no diff yet, unpack iains' source over ours
    - |
      if test "{{hw.platform}}+{{hw.arch}}" = "darwin+aarch64"; then
        if test -n "$BRANCH{{version.major}}{{version.minor}}"; then
          curl -L "$BRANCH{{version.major}}{{version.minor}}" | tar xz --strip-components=1 -C ..
        fi
      fi

    # The spaces mess things up in the env key
    - ARGS=($ARGS --with-pkgversion="tea GCC {{version}}")

    # On Linux, we need to statically link libstdc++ and libgcc
    - |
      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

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

    # On Linux, we need to move the libraries to the lib directory.
    - run: |
        if test {{hw.platform}} = "linux"; then
          mv lib64/* lib/
          rmdir lib64
        fi
      working-directory: ${{prefix}}
  env:
    # 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
    PATCH122: https://raw.githubusercontent.com/Homebrew/formula-patches/1d184289/gcc/gcc-12.2.0-arm.diff
    # https://github.com/iains/gcc-darwin-arm64
    PATCH131: https://raw.githubusercontent.com/Homebrew/formula-patches/master/gcc/gcc-13.1.0.diff
    BRANCH105: https://github.com/iains/gcc-10-branch/archive/refs/heads/gcc-10-5Dr0-pre-0.tar.gz
    BRANCH114: https://github.com/iains/gcc-11-branch/archive/refs/tags/gcc-11.4-darwin-r0.tar.gz
    BRANCH123: https://github.com/iains/gcc-12-branch/archive/refs/tags/gcc-12.3-darwin-r0.tar.gz
    BRANCH132: https://github.com/iains/gcc-13-branch/archive/refs/heads/gcc-13-2-darwin.tar.gz
    ARGS:
      - --prefix={{ prefix }}
      - --libdir={{ prefix }}/lib
      - --enable-languages=c,c++,objc,obj-c++,fortran
      - --with-bugurl="https://github.com/teaxyz/pantry/issues"
      - --disable-bootstrap
      - --disable-nls
    linux:
      ARGS:
        - --disable-multilib
        - --enable-default-pie
        - --enable-pie-tools
    linux/x86-64:
      LDFLAGS: $LDFLAGS -pie
      CFLAGS: $CFLAGS -fPIC
      CXXFLAGS: $CXXFLAGS -fPIC
    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 "$(./test2)" = "Hello, world!"
  - gfortran -o test3 test.f90
  - test "$(./test3)" = "Hello, world!"

provides:
  - bin/c++
  - bin/gc++
  - bin/cpp
  - bin/g++
  - bin/gcc
  - bin/gcc-ar
  - bin/gcc-nm
  - bin/gcc-ranlib
  - bin/gcov
  - bin/gcov-dump
  - bin/gcov-tool
  - bin/gfortran
  - bin/lto-dump