simple

Formula/gcc/arm64-apple-darwin-gcc.rb

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+class Arm64AppleDarwinGcc < Formula
+  desc "GNU compiler collection"
+  homepage "https://gcc.gnu.org/"
+  url "https://ftp.gnu.org/gnu/gcc/gcc-14.1.0/gcc-14.1.0.tar.xz"
+  sha256 "e283c654987afe3de9d8080bc0bd79534b5ca0d681a73a11ff2b5d3767426840"
+  license "GPL-3.0-or-later" => { with: "GCC-exception-3.1" }
+
+  bottle do
+    root_url "https://github.com/paperchalice/homebrew-private/releases/download/gcc-boot-14.1.0"
+    sha256 ventura: "4775fb895ade05fcf3996e47fd3619f4e8b4f987c08b7444a59fe2aff6db6358"
+  end
+
+  keg_only "bootstrap formula"
+
+  depends_on "doxygen"   => :build
+  depends_on "gcc-strap" => :build
+  depends_on "gettext"   => :build
+  depends_on "make"      => :build
+  depends_on "python"    => :build
+  depends_on "rust"      => :build
+  depends_on "texinfo"   => :build
+  depends_on xcode: :build
+
+  # The bottles are built on systems with the CLT installed, and do not work
+  # out of the box on Xcode-only systems due to an incorrect sysroot.
+  pour_bottle? only_if: :clt_installed
+
+  # GCC bootstraps itself, so it is OK to have an incompatible C++ stdlib
+  cxxstdlib_check :skip
+
+  patch do
+    url "https://raw.githubusercontent.com/Homebrew/formula-patches/82b5c1cd38826ab67ac7fc498a8fe74376a40f4a/gcc/gcc-14.1.0.diff"
+    sha256 "1529cff128792fe197ede301a81b02036c8168cb0338df21e4bc7aafe755305a"
+  end
+
+  def install
+    ENV.prepend_path "PATH", Formula["gcc-strap"].bin
+    ENV.delete "CC"
+    ENV.delete "CXX"
+    ENV.delete "LD"
+
+    inreplace "libgcc/config/t-darwin-min-5", "10.5", "11.7"
+
+    triple = "#{Hardware::CPU.arch}-apple-darwin#{OS.kernel_version.major}"
+    target = "arm64-apple-darwin#{OS.kernel_version.major}"
+    languages = %w[ada c c++ d]
+    sr = MacOS.sdk_path.to_str.tr "0-9", ""
+
+    configure_args = %W[
+      --build=#{triple}
+      --host=#{triple}
+      --target=#{target}
+      --prefix=#{prefix}
+      --program-prefix=#{target}-
+      --with-as=/usr/bin/as
+      --with-ld=/usr/bin/ld
+      --with-dsymutil=/usr/bin/dsymutil
+      --disable-bootstrap
+      --disable-multilib
+      --enable-checking=release
+      --enable-languages=#{languages.join(",")}
+      --with-gcc-major-version-only
+      --with-sysroot=#{sr}
+      --without-zstd
+    ]
+
+    mkdir "tgt_bin" do
+      %w[ar nm dsymutil strip lipo].each do |t|
+        ln_s "#{sr}/../../usr/bin/#{t}", "#{target}-#{t}"
+        bin.install_symlink "#{sr}/../../usr/bin/#{t}" => "#{target}-#{t}"
+      end
+      [Pathname.pwd, bin].each do |p|
+        (p/"#{target}-ranlib").write <<~SH
+          #! /bin/sh
+          ranlib "$@"
+        SH
+        chmod "+x", p/"#{target}-ranlib"
+      end
+    end
+    ENV.prepend_path "PATH", buildpath/"tgt_bin"
+
+    system "./contrib/download_prerequisites"
+    mkdir "build" do
+      system "../configure", *configure_args
+      system "gmake"
+      system "gmake", "install", "-j", "1"
+    end
+    rm_rf man3/"stdheader.dSYM"
+    [info, man1, man3, man7].each { |d| Utils::Gzip.compress(*Dir[d/"*"]) }
+  end
+
+  test do
+    system "echo"
+  end
+end