i686-w64-mingw32-gcc.rb

class I686W64Mingw32Gcc < Formula
  homepage "https://gcc.gnu.org"
  url "http://ftpmirror.gnu.org/gcc/gcc-5.2.0/gcc-5.2.0.tar.bz2"
  sha256 "5f835b04b5f7dd4f4d2dc96190ec1621b8d89f2dc6f638f9f8bc1b1014ba8cad"

  resource "binutils" do
    url "http://ftpmirror.gnu.org/binutils/binutils-2.25.1.tar.bz2"
    sha256 "b5b14added7d78a8d1ca70b5cb75fef57ce2197264f4f5835326b0df22ac9f22"
  end

  resource "mingw-headers" do
    url "https://downloads.sourceforge.net/project/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v4.0.4.tar.bz2"
    sha256 "89356a0aa8cf9f8b9dc8d92bc8dd01a131d4750c3acb30c6350a406316c42199"
  end

  resource "gcc-core" do
    url "http://ftpmirror.gnu.org/gcc/gcc-5.2.0/gcc-5.2.0.tar.bz2"
    sha256 "5f835b04b5f7dd4f4d2dc96190ec1621b8d89f2dc6f638f9f8bc1b1014ba8cad"
  end

  resource "mingw-runtime" do
    url "https://downloads.sourceforge.net/project/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v4.0.4.tar.bz2"
    sha256 "89356a0aa8cf9f8b9dc8d92bc8dd01a131d4750c3acb30c6350a406316c42199"
  end

  resource "mingw-winpthread" do
    url "https://downloads.sourceforge.net/project/mingw-w64/mingw-w64/mingw-w64-release/mingw-w64-v4.0.4.tar.bz2"
    sha256 "89356a0aa8cf9f8b9dc8d92bc8dd01a131d4750c3acb30c6350a406316c42199"
  end

  depends_on "gcc5" => :build
  depends_on "gmp"
  depends_on "mpfr"
  depends_on "libmpc"
  depends_on "isl014"

  keg_only <<-EOS.undent
    This formula is mainly used internally by other formulae.
EOS

  def install
    target_arch = "i686-w64-mingw32"

    resource("binutils").stage do
      args = %W[
        CC=gcc-5
        CXX=g++-5
        CPP=cpp-5
        LD=gcc-5
        --target=#{target_arch}
        --disable-werror
        --disable-multilib
        --prefix=#{prefix}
      ]

      system "./configure", *args
      system "make"
      system "make install-strip"
    end

    resource("mingw-headers").stage do
      args = %W[
        --host=#{target_arch}
        --prefix=#{prefix}/mingw
        --enable-sdk=all
        --enable-secure-api
      ]

      mkdir "build-headers" do
        system "../mingw-w64-headers/configure", *args
        system "make"
        system "make install"
      end

      ln_s target_arch, "mingw"
    end

    resource("gcc-core").stage do
      ENV.prepend_path 'PATH', bin
      ENV.prepend "CFLAGS", "-I#{prefix}/mingw/include"

      args = %W[
        CC=gcc-5
        CXX=g++-5
        CPP=cpp-5
        LD=gcc-5
        --target=#{target_arch}
        --prefix=#{prefix}
        --disable-multilib
        --with-system-zlib
        --enable-version-specific-runtime-libs
        --enable-libstdcxx-time=yes
        --enable-stage1-checking
        --enable-checking=release
        --enable-lto
        --enable-threads=win32
        --disable-sjlj-exceptions
        --enable-languages=c,c++,objc,obj-c++
        --with-gmp=#{Formula["gmp"].opt_prefix}
        --with-mpfr=#{Formula["mpfr"].opt_prefix}
        --with-mpc=#{Formula["libmpc"].opt_prefix}
        --with-isl=#{Formula["isl014"].opt_prefix}
        MAKEINFO=missing
      ]

      mkdir "build32" do
        system "../configure", *args
        system "make all-gcc"
        system "make install-gcc"
      end

      # restore PATH
      ENV["PATH"] = path
    end

    resource("mingw-runtime").stage do
      path = ENV["PATH"]
      ENV.prepend_path 'PATH', bin
      ENV.append "CPPFLAGS", "-I#{prefix}/mingw/include"

      args = %W[
        CC=#{target_arch}-gcc
        CXX=#{target_arch}-g++
        CPP=#{target_arch}-cpp
        LD=#{target_arch}-gcc
        --host=#{target_arch}
        --prefix=#{prefix}
        --disable-lib64 --enable-lib32
      ]

      chdir "mingw-w64-crt" do
        system "./configure", *args
        system "make"
        system "make install"
      end

      # restore PATH
      ENV["PATH"] = path
    end

    # build cross gcc
    path = ENV["PATH"]
    ENV.prepend_path 'PATH', bin
    ENV.prepend "CFLAGS", "-I#{prefix}/mingw/include"

    args = %W[
      --target=#{target_arch}
      --prefix=#{prefix}
      --disable-multilib
      --with-system-zlib
      --enable-version-specific-runtime-libs
      --enable-libstdcxx-time=yes
      --enable-stage1-checking
      --enable-checking=release
      --enable-lto
      --enable-threads=win32
      --disable-sjlj-exceptions
      --enable-languages=c,c++,objc,obj-c++
      --with-gmp=#{Formula["gmp"].opt_prefix}
      --with-mpfr=#{Formula["mpfr"].opt_prefix}
      --with-mpc=#{Formula["libmpc"].opt_prefix}
      --with-isl=#{Formula["isl014"].opt_prefix}
      MAKEINFO=missing
    ]

    system "make"
    system "make install"

    chdir "#{prefix}/#{target_arch}/lib" do
      ln_s "../../lib/gcc/#{target_arch}/lib/libgcc_s.a", "./"
    end

    # restore PATH
    ENV["PATH"] = path

    resource("mingw-winpthread").stage do
      path = ENV["PATH"]
      ENV.prepend_path 'PATH', bin
      ENV.append "CFLAGS", "-I#{prefix}/mingw/include"

      args = %W[
        CC=#{target_arch}-gcc
        CXX=#{target_arch}-g++
        CPP=#{target_arch}-cpp
        LD=#{target_arch}-gcc
        --host=#{target_arch}
        --prefix=#{prefix}
        --disable-lib64 --enable-lib32
      ]

      chdir "mingw-w64-libraries/winpthreads" do
        system "./configure", *args
        system "make"
        system "make install"
      end
      # restore PATH
      ENV["PATH"] = path
    end
  end
end