class X8664ElfGcc < Formula
  desc "GNU compiler collection for x86_64-elf"
  homepage "https://gcc.gnu.org"
  url "https://ftpmirror.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.xz"
  mirror "https://ftp.gnu.org/gnu/gcc/gcc-15.2.0/gcc-15.2.0.tar.xz"
  sha256 "438fd996826b0c82485a29da03a72d71d6e3541a83ec702df4271f6fe025d24e"
  license "GPL-3.0-or-later" => { with: "GCC-exception-3.1" }

  livecheck do
    formula "gcc"
  end

  bottle do
    rebuild 1
    sha256 arm64_tahoe:   "c09336382ae4333e2e8f4f87bed391f86a47470a3432321a0f56c404c1146f36"
    sha256 arm64_sequoia: "77f70f69f5c62e425fd619acfabba6efe710c92a04c1a1c9ec149aad59ee84b4"
    sha256 arm64_sonoma:  "0e8de4013e8b6d1de430cf0444be0bc9400f391b1f6342373a82dc20fc7cd761"
    sha256 sonoma:        "e6e89c590cd3487f158f988cf1863712045e517286c04ff610320dba1cecb0fb"
    sha256 arm64_linux:   "69660b3b18050c91c9859d50d3406528769f9962151040832bb521c842333bad"
    sha256 x86_64_linux:  "29f9506ffca0f41dbf6c866535ea4cef4dcdde626822d291adbdc27f3c6a0eac"
  end

  depends_on "gmp"
  depends_on "libmpc"
  depends_on "mpfr"
  depends_on "x86_64-elf-binutils"
  depends_on "zstd"

  on_linux do
    depends_on "zlib-ng-compat"
  end

  def install
    target = "x86_64-elf"
    mkdir "x86_64-elf-gcc-build" do
      system "../configure", "--target=#{target}",
                             "--prefix=#{prefix}",
                             "--infodir=#{info}/#{target}",
                             "--disable-nls",
                             "--without-isl",
                             "--without-headers",
                             "--with-as=#{Formula["x86_64-elf-binutils"].bin}/x86_64-elf-as",
                             "--with-ld=#{Formula["x86_64-elf-binutils"].bin}/x86_64-elf-ld",
                             "--with-system-zlib",
                             "--enable-languages=c,c++"
      system "make", "all-gcc"
      system "make", "install-gcc"
      system "make", "all-target-libgcc"
      system "make", "install-target-libgcc"

      # FSF-related man pages may conflict with native gcc
      rm_r(share/"man/man7")
    end
  end

  test do
    (testpath/"test-c.c").write <<~C
      int main(void)
      {
        int i=0;
        while(i<10) i++;
        return i;
      }
    C

    system bin/"x86_64-elf-gcc", "-c", "-o", "test-c.o", "test-c.c"
    output = shell_output("#{Formula["x86_64-elf-binutils"].bin}/x86_64-elf-objdump -a test-c.o")
    assert_match "file format elf64-x86-64", output
  end
end