class Aarch64ElfGcc < Formula
  desc "GNU compiler collection for aarch64-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:   "39189131b2a9ec33531819fde63a3c2c615a567534ec0ba374e7e3cd777ab71f"
    sha256 arm64_sequoia: "f062b32aef147d3a3ed3cab81b1bb8035ecff41704a29396269ea9a26538f16f"
    sha256 arm64_sonoma:  "e1b18592e811e0a49d41bd2127f3faa213f4eb5ba9d4cdcdee48a37dd10fb4c0"
    sha256 sonoma:        "0e637245c9e661fe6b2ca5ca71d70de801b61eaf3f7ffefa28c65eead537d157"
    sha256 arm64_linux:   "9d4aab0a30ebe5a41f85546bcfbb87e0372c493fb0774230fdeb555148c59b7f"
    sha256 x86_64_linux:  "21b851cee98d065f9a40ad491b495677043850c9f246d8233c71e681cdae50ce"
  end

  depends_on "aarch64-elf-binutils"
  depends_on "gmp"
  depends_on "isl"
  depends_on "libmpc"
  depends_on "mpfr"
  depends_on "zstd"

  on_linux do
    depends_on "zlib-ng-compat"
  end

  def install
    target = "aarch64-elf"
    mkdir "aarch64-elf-gcc-build" do
      system "../configure", "--target=#{target}",
                             "--prefix=#{prefix}",
                             "--infodir=#{info}/#{target}",
                             "--disable-nls",
                             "--without-headers",
                             "--with-as=#{Formula["aarch64-elf-binutils"].bin}/aarch64-elf-as",
                             "--with-ld=#{Formula["aarch64-elf-binutils"].bin}/aarch64-elf-ld",
                             "--enable-languages=c,c++,objc,lto",
                             "--enable-lto",
                             "--with-system-zlib",
                             "--with-zstd",
                             *std_configure_args
      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/"aarch64-elf-gcc", "-c", "-o", "test-c.o", "test-c.c"
    assert_match "file format elf64-littleaarch64",
                 shell_output("#{Formula["aarch64-elf-binutils"].bin}/aarch64-elf-objdump -a test-c.o")
  end
end