chore(release): 0.4.10

Previously it would build master, but not include "master" in the
final output archive's file name.

CHANGELOG.md

@@ -2,6 +2,42 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+### [0.4.10](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.9...0.4.10) (2021-04-25)
+
+
+### Bug Fixes
+
+* **cli:** correctly default to master branch if no git ref is given ([844df73](https://github.com/jimeh/build-emacs-for-macos/commit/844df73c8fa8440e657f7900ec89cdedb7c4c312))
+
+### [0.4.9](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.8...0.4.9) (2021-04-08)
+
+
+### Bug Fixes
+
+* **cli:** default to "master" if no git ref is given ([e19a6a7](https://github.com/jimeh/build-emacs-for-macos/commit/e19a6a7bc24379292ee06ae4c805b8c5365f2d97)), closes [#35](https://github.com/jimeh/build-emacs-for-macos/issues/35)
+* **native_comp:** skip symlink creation for recent builds which do not need symlinks ([1000999](https://github.com/jimeh/build-emacs-for-macos/commit/1000999eb2673dc207a390ff3f902b9987b99173))
+
+### [0.4.8](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.7...0.4.8) (2021-02-27)
+
+
+### Bug Fixes
+
+* **native_comp:** add support for new --with-native-compilation flag ([581594d](https://github.com/jimeh/build-emacs-for-macos/commit/581594da3cfbf1dd2fa28e91710b767e21ff75d2))
+
+### [0.4.7](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.6...0.4.7) (2021-02-21)
+
+
+### Bug Fixes
+
+* **native_comp:** add libgccjit include dir during build stage ([e25ceaa](https://github.com/jimeh/build-emacs-for-macos/commit/e25ceaa7e25b0e1b9947401597845b5ba43e6cd1)), closes [#20](https://github.com/jimeh/build-emacs-for-macos/issues/20)
+
+### [0.4.6](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.5...0.4.6) (2021-02-15)
+
+
+### Bug Fixes
+
+* **native_comp:** improve env setup patch fixing potential issues ([dca023d](https://github.com/jimeh/build-emacs-for-macos/commit/dca023daecd8704f197cbc391380aa194bc47d62))
+
 ### [0.4.5](https://github.com/jimeh/build-emacs-for-macos/compare/0.4.4...0.4.5) (2021-01-06)
 
 

Gemfile

@@ -5,4 +5,6 @@ source 'http://rubygems.org/'
 group :development do
   gem 'byebug'
   gem 'rubocop'
+  gem 'rubocop-daemon'
+  gem 'solargraph', '~> 0.39.17'
 end

Makefile

@@ -1,9 +1,12 @@
 .PHONY: new-version
-new-version:
-	$(if $(shell which npx),,\
-		$(error No npx found in PATH, please install NodeJS))
-	$(if $(shell which standard-version),,\
-		$(error No standard-version found in PATH, install with: \
-			npm install -g standard-version))
-
+new-version: check-npx
 	npx standard-version
+
+.PHONY: next-version
+next-version: check-npx
+	npx standard-version --dry-run
+
+.PHONY: check-npx
+check-npx:
+	$(if $(shell which npx),,\
+		$(error No npx execuable found in PATH, please install NodeJS))

README.md

@@ -1,7 +1,8 @@
 # build-emacs-for-macos
 
 My personal hacked together script for building a completely self-contained
-Emacs.app application on macOS, from any git branch, tag, or ref.
+Emacs.app application on macOS, from any git branch, tag, or ref. With support
+for native-compilation.
 
 Use this script at your own risk.
 
@@ -18,7 +19,7 @@ Use this script at your own risk.
 
 ## Status
 
-As of writing (2020-10-04) it works for me on my machine. Your luck may vary.
+As of writing (2021-04-25) it works for me on my machine. Your luck may vary.
 
 I have successfully built:
 
@@ -29,8 +30,8 @@ I have successfully built:
 For reference, my machine is:
 
 - 13-inch MacBook Pro (2020), 10th-gen 2.3 GHz Quad-Core Intel Core i7 (4c/8t)
-- macOS 10.15.6 (19G2021)
-- Xcode 12.0
+- macOS Big Sur 11.2.3 (20D91)
+- Xcode 12.4 (12D4e)
 
 ## Limitations
 
@@ -92,8 +93,8 @@ trash the corresponding directory from the `sources` directory.
 
 ### Examples
 
-To download a tarball of the `master` branch (Emacs 28.x as of writing) and
-build Emacs.app from it:
+To download a tarball of the `master` branch (Emacs 28.x with native-compilation
+as of writing) and build Emacs.app from it:
 
 ```
 ./build-emacs-for-macos
@@ -136,24 +137,24 @@ tools seems to use it to figure out the path to Emacs' executable, including
 
 ## Native-Comp
 
-Building a Emacs.app with native-comp support
-([gccemacs](https://akrl.sdf.org/gccemacs.html)) from the `feature/native-comp`
-branch is now supported without much hassle thanks to the newly released
-`libgccjit` Homebrew formula.
+_Note: On 2021-04-25 the `feature/native-comp` branch was
+[merged](http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=289000eee729689b0cf362a21baa40ac7f9506f6)
+into `master`._
 
-To build a Emacs.app with native compilation enabled, simply run:
-
-```
-./build-emacs-for-macos feature/native-comp
-```
+The build script will automatically detect if the source tree being built
+supports native-compilation, and enable it if available. You can override this
+to force it on/off by passing `--native-comp` or `--no-native-comp`
+respectfully.
 
 By default `NATIVE_FULL_AOT` is disabled which ensures a fast build by native
-compiling as few lisp source files as possible to build the app. Any remaining
-lisp files will be dynamically compiled in the background the first time you use
-them. To enable native full AoT, pass in the `--native-full-aot` option.
+compiling as few elisp source files as possible to build Emacs itself. Any
+remaining elisp files will be dynamically compiled in the background the first
+time they are used.
 
-On my machine it takes around 10 minutes to build Emacs.app with
-`NATIVE_FULL_AOT` disabled. With it enabled it takes around 20-25 minutes.
+To enable native full Ahead-of-Time compilation, pass in the `--native-full-aot`
+option, which will native-compile all of Emacs' elisp as built-time. On my
+machine it takes around 10 minutes to build Emacs.app with `NATIVE_FULL_AOT`
+disabled, and around 20-25 minutes with it enabled.
 
 ### Configuration
 

build-emacs-for-macos

@@ -77,11 +77,13 @@ class Build
   attr_reader :source_dir
   attr_reader :ref
   attr_reader :options
+  attr_reader :gcc_info
 
   def initialize(root_dir, ref = nil, options = {})
     @root_dir = root_dir
-    @ref = ref
+    @ref = ref || 'master'
     @options = options
+    @gcc_info = GccInfo.new
   end
 
   def build
@@ -99,7 +101,7 @@ class Build
     symlink_internals(app)
 
     LibEmbedder.new(app, brew_dir, extra_libs).embed
-    GccLibEmbedder.new(app, gcc_dir).embed if options[:native_comp]
+    GccLibEmbedder.new(app, gcc_info).embed if options[:native_comp]
 
     archive_app(app)
   end
@@ -122,19 +124,11 @@ class Build
     @brew_dir ||= `brew --prefix`.chomp
   end
 
-  def gcc_dir
-    @gcc_dir ||= `brew --prefix gcc`.chomp
-  end
-
-  def libgccjit_dir
-    @libgccjit_dir ||= `brew --prefix libgccjit`.chomp
-  end
-
   def extra_libs
     @extra_libs ||= [
-      "#{brew_dir}/opt/expat/lib/libexpat.1.dylib",
-      "#{brew_dir}/opt/libiconv/lib/libiconv.2.dylib",
-      "#{brew_dir}/opt/zlib/lib/libz.1.dylib"
+      File.join(brew_dir, 'opt/expat/lib/libexpat.1.dylib'),
+      File.join(brew_dir, 'opt/libiconv/lib/libiconv.2.dylib'),
+      File.join(brew_dir, 'opt/zlib/lib/libz.1.dylib')
     ]
   end
 
@@ -186,14 +180,20 @@ class Build
     @configure_help
   end
 
-  def supports_native_comp?
-    @supports_native_comp ||= !!configure_help.match(/\s+--with-nativecomp\s+/)
-  end
-
   def supports_xwidgets?
     @supports_xwidgets ||= !!configure_help.match(/\s+--with-xwidgets\s+/)
   end
 
+  def supports_native_comp?
+    @supports_native_comp ||= !native_comp_configure_flag.nil?
+  end
+
+  def native_comp_configure_flag
+    @native_comp_configure_flag ||= configure_help.match(
+      /\s+(--with-native(?:comp|-compilation))\s+/
+    )&.[](1)
+  end
+
   def detect_native_comp
     info 'Detecting native-comp support: ', newline: false
     options[:native_comp] = supports_native_comp?
@@ -206,30 +206,6 @@ class Build
     err 'This emacs source tree does not support native-comp'
   end
 
-  def verify_libgccjit
-    err 'gcc not installed' unless Dir.exist?(gcc_dir)
-    err 'libgccjit not installed' unless Dir.exist?(libgccjit_dir)
-
-    if Dir["#{libgccjit_dir}/lib/**/libgccjit.so*"].empty?
-      err "Detected libgccjit (#{libgccjit_dir}) does not have any " \
-          'libgccjit.so* files. Please try reinstalling libgccjit: ' \
-          'brew reinstall libgccjit'
-    end
-
-    dirs = Dir["{#{gcc_dir},#{libgccjit_dir}}/lib/gcc/*"]
-    return if dirs.map { |dir| File.basename(dir) }.uniq == %w[10]
-
-    err 'Detected gcc and libgccjit library paths do not belong to the ' \
-        "same major version. Detected paths:\n  - #{dirs.join('  - ')}"
-  end
-
-  def gcc_library_paths
-    @gcc_library_paths ||= Dir[
-      "{#{gcc_dir},#{libgccjit_dir}}/lib/gcc/*",
-      "{#{gcc_dir},#{libgccjit_dir}}/lib/gcc/*/gcc/*apple-darwin*/*"
-    ].sort_by { |p| [p.size, p] }
-  end
-
   def autogen
     FileUtils.cd(source_dir) do
       if File.exist?('autogen/copy_autogen')
@@ -241,10 +217,10 @@ class Build
   end
 
   def compile_source(source)
-    target = "#{source}/nextstep"
-    emacs_app = "#{target}/Emacs.app"
+    target = File.join(source, 'nextstep')
+    emacs_app = File.join(target, 'Emacs.app')
 
-    if File.exist?("#{target}/Emacs.app")
+    if File.exist?(emacs_app)
       info 'Emacs.app already exists in ' \
            "\"#{target.gsub(root_dir + '/', '')}\", attempting to use."
       return emacs_app
@@ -256,53 +232,61 @@ class Build
       if options[:native_comp]
         info 'Compiling with native-comp enabled'
         verify_native_comp
-        verify_libgccjit
+        gcc_info.verify_libgccjit
 
         apply_native_comp_env_setup_patch(source)
 
         ENV['CFLAGS'] = [
-          "-I#{gcc_dir}/include",
+          "-I#{File.join(gcc_info.root_dir, 'include')}",
+          "-I#{File.join(gcc_info.libgccjit_root_dir, 'include')}",
           '-O2',
-          '-march=native'
+          '-march=native',
+          ENV['CFLAGS']
         ].compact.join(' ')
 
         ENV['LDFLAGS'] = [
-          gcc_library_paths.map { |path| "-L#{path}" },
-          "-I#{gcc_dir}/include",
-          "-I#{libgccjit_dir}/include"
-        ].flatten.compact.join(' ')
+          "-L#{gcc_info.lib_dir}",
+          "-L#{gcc_info.darwin_lib_dir}",
+          "-L#{gcc_info.libgccjit_lib_dir}",
+          "-I#{File.join(gcc_info.root_dir, 'include')}",
+          "-I#{File.join(gcc_info.libgccjit_root_dir, 'include')}",
+          ENV['LDFLAGS']
+        ].compact.join(' ')
 
         ENV['LIBRARY_PATH'] = [
-          gcc_library_paths,
+          gcc_info.lib_dir,
+          gcc_info.darwin_lib_dir,
+          gcc_info.libgccjit_lib_dir,
           ENV['LIBRARY_PATH']
-        ].flatten.compact.join(':')
+        ].compact.join(':')
       end
 
       ENV['CC'] = 'clang'
       ENV['PKG_CONFIG_PATH'] = [
-        "#{brew_dir}/lib/pkgconfig",
-        "#{brew_dir}/share/pkgconfig",
-        "#{brew_dir}/opt/expat/lib/pkgconfig",
-        "#{brew_dir}/opt/libxml2/lib/pkgconfig",
-        "#{brew_dir}/opt/ncurses/lib/pkgconfig",
-        "#{brew_dir}/opt/zlib/lib/pkgconfig",
-        "#{brew_dir}/Homebrew/Library/Homebrew/os/mac/pkgconfig/#{OS.version}",
+        File.join(brew_dir, 'lib/pkgconfig'),
+        File.join(brew_dir, 'share/pkgconfig'),
+        File.join(brew_dir, 'opt/expat/lib/pkgconfig'),
+        File.join(brew_dir, 'opt/libxml2/lib/pkgconfig'),
+        File.join(brew_dir, 'opt/ncurses/lib/pkgconfig'),
+        File.join(brew_dir, 'opt/zlib/lib/pkgconfig'),
+        File.join(brew_dir, 'Homebrew/Library/Homebrew/os/mac/pkgconfig',
+                  OS.version.to_s),
         ENV['PKG_CONFIG_PATH']
       ].compact.join(':')
 
       ENV['PATH'] = [
-        "#{brew_dir}/opt/make/libexec/gnubin",
-        "#{brew_dir}/opt/coreutils/libexec/gnubin",
-        "#{brew_dir}/opt/gnu-sed/libexec/gnubin",
-        "#{brew_dir}/bin",
-        "#{brew_dir}/opt/texinfo/bin",
+        File.join(brew_dir, 'opt/make/libexec/gnubin'),
+        File.join(brew_dir, 'opt/coreutils/libexec/gnubin'),
+        File.join(brew_dir, 'opt/gnu-sed/libexec/gnubin'),
+        File.join(brew_dir, 'bin'),
+        File.join(brew_dir, 'opt/texinfo/bin'),
         ENV['PATH']
       ].compact.join(':')
 
       ENV['LIBRARY_PATH'] = [
-         ENV['LIBRARY_PATH'],
-         "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib"
-        ].compact.join(':')
+        ENV['LIBRARY_PATH'],
+        '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib'
+      ].compact.join(':')
 
       configure_flags = [
         '--with-ns',
@@ -314,7 +298,7 @@ class Build
       if options[:xwidgets] && supports_xwidgets?
         configure_flags << '--with-xwidgets'
       end
-      configure_flags << '--with-nativecomp' if options[:native_comp]
+      configure_flags << native_comp_configure_flag if options[:native_comp]
       configure_flags << '--without-rsvg' unless options[:rsvg]
 
       run_cmd './configure', *configure_flags
@@ -330,17 +314,17 @@ class Build
       make_flags = []
       make_flags += ['-j', options[:parallel].to_s] if options[:parallel]
 
-      if options[:native_full_aot]
-        info 'Using NATIVE_FULL_AOT=1'
-        make_flags << 'NATIVE_FULL_AOT=1'
-        ENV.delete('NATIVE_FAST_BOOT')
-      else
-        ENV.delete('NATIVE_FULL_AOT')
-        ENV['NATIVE_FAST_BOOT'] = '1'
-      end
-
       if options[:native_comp]
         make_flags << "BYTE_COMPILE_EXTRA_FLAGS=--eval '(setq comp-speed 2)'"
+
+        if options[:native_full_aot]
+          info 'Using NATIVE_FULL_AOT=1'
+          make_flags << 'NATIVE_FULL_AOT=1'
+          ENV.delete('NATIVE_FAST_BOOT')
+        else
+          ENV.delete('NATIVE_FULL_AOT')
+          ENV['NATIVE_FAST_BOOT'] = '1'
+        end
       end
 
       run_cmd 'make', *make_flags
@@ -355,13 +339,20 @@ class Build
   def symlink_internals(app)
     return unless options[:native_comp]
 
-    info 'Creating symlinks within Emacs.app needed for native-comp'
-
     FileUtils.cd(File.join(app, 'Contents')) do
+      # Skip creation of symlinks if *.eln files are located under
+      # Resources/native-lisp. Emacs is capable of finding lisp sources and
+      # *.eln cache files without symlinks.
+      return if Dir['Resources/native-lisp/**/*.eln'].any?
+
+      info 'Creating symlinks within Emacs.app needed for native-comp'
+
       FileUtils.ln_s('Resources/lisp', 'lisp') unless File.exist?('lisp')
 
       source = Dir['MacOS/libexec/emacs/**/eln-cache',
                    'MacOS/lib/emacs/**/native-lisp'].first
+      err 'Failed to find native-lisp cache directory for symlink creation.'
+
       target = File.basename(source)
       FileUtils.ln_s(source, target) unless File.exist?(target)
     end
@@ -412,6 +403,7 @@ class Build
     return @meta if @meta
 
     ref_sha = options[:git_sha] || ref
+    info "Fetching info for git ref: #{ref_sha}"
     url = format(LATEST_URL, ref_sha)
     commit_json = http_get(url)
     err "Failed to get commit info about: #{ref_sha}" if commit_json.nil?
@@ -443,10 +435,14 @@ class Build
     file = 'lisp/emacs-lisp/comp.el'
     return if `grep '#{term}' '#{file}'`.strip.size.positive?
 
-    apply_patch(
-      { file: "#{__dir__}/patches/native-comp-env-setup.patch" },
-      source
+    template = File.read(
+      File.join(__dir__, 'patches/native-comp-env-setup.diff.erb')
     )
+    patch = ERB.new(template).result(gcc_info.get_binding)
+    patch_file = File.join(source, 'macos_patches/native-comp-env-setup.diff')
+
+    File.write(patch_file, patch)
+    apply_patch({ file: patch_file }, source)
   end
 
   def effective_version
@@ -520,7 +516,7 @@ class Build
       patch_dir = "#{target}/macos_patches"
       run_cmd('mkdir', '-p', patch_dir)
 
-      patch_file = "#{patch_dir}/patch-{num}.diff"
+      patch_file = File.join(patch_dir, 'patch-{num}.diff')
       num = 1
       while File.exist?(patch_file.gsub('{num}', num.to_s.rjust(3, '0')))
         num += 1
@@ -563,16 +559,16 @@ class AbstractEmbedder
 
   private
 
+  def invocation_dir
+    File.join(app, 'Contents/MacOS')
+  end
+
   def bin
-    "#{app}/Contents/MacOS/Emacs"
+    File.join(invocation_dir, 'Emacs')
   end
 
   def lib_dir
-    "#{app}/Contents/MacOS/#{lib_dir_name}"
-  end
-
-  def lib_dir_name
-    'lib'
+    File.join(invocation_dir, 'lib')
   end
 end
 
@@ -615,18 +611,18 @@ class LibEmbedder < AbstractEmbedder
       while_writable(exe) do
         if match[2] == exe_file
           system('install_name_tool', '-id',
-                 "@executable_path/#{rel_path}/#{match[2]}", exe)
+                 File.join('@executable_path', rel_path, match[2].to_s), exe)
         else
           system('install_name_tool', '-change', match[1],
-                 "@executable_path/#{rel_path}/#{match[2]}", exe)
+                 File.join('@executable_path', rel_path, match[2].to_s), exe)
         end
       end
 
-      next if match[2] == exe_file || File.exist?("#{lib_dir}/#{match[2]}")
+      next if match[2] == exe_file || File.exist?(File.join(lib_dir, match[2]))
 
       FileUtils.mkdir_p(lib_dir)
       FileUtils.cp(match[1], lib_dir)
-      copy_libs("#{lib_dir}/#{match[2]}", rel_path)
+      copy_libs(File.join(lib_dir, match[2].to_s), rel_path)
     end
   end
 
@@ -645,7 +641,7 @@ class LibEmbedder < AbstractEmbedder
 
       while_writable(target) do
         system('install_name_tool', '-id',
-               "@executable_path/#{rel_path}/#{lib_file}", target)
+               File.join('@executable_path', rel_path, lib_file), target)
       end
 
       copy_libs(target, rel_path)
@@ -669,7 +665,7 @@ class LibEmbedder < AbstractEmbedder
         while_writable(bin_path) do
           system(
             'install_name_tool', '-change', match[1],
-            "@executable_path/#{rel_path}/#{match[2]}",
+            File.join('@executable_path', rel_path, match[2].to_s),
             bin_path
           )
         end
@@ -681,16 +677,17 @@ class LibEmbedder < AbstractEmbedder
     mode = File.stat(file).mode
     File.chmod(0o775, file)
     yield
+  ensure
     File.chmod(mode, file)
   end
 end
 
 class GccLibEmbedder < AbstractEmbedder
-  attr_reader :gcc_dir
+  attr_reader :gcc_info
 
-  def initialize(app, gcc_dir)
+  def initialize(app, gcc_info)
     super(app)
-    @gcc_dir = gcc_dir
+    @gcc_info = gcc_info
   end
 
   def embed
@@ -700,34 +697,116 @@ class GccLibEmbedder < AbstractEmbedder
     end
 
     info 'Embedding libgccjit into Emacs.app'
-    if gcc_version.empty?
-      err "No suitable GCC lib with libgccjit found in #{gcc_dir}"
+
+    if gcc_info.lib_dir.empty?
+      err "No suitable GCC lib dir found in #{gcc_info.root_dir}"
     end
 
     FileUtils.mkdir_p(File.dirname(target_dir))
     FileUtils.cp_r(source_dir, target_dir)
-    FileUtils.rm(Dir[File.join(target_dir, '**', '.DS_Store')], force: true)
+    FileUtils.rm(Dir[File.join(target_dir, '**/.DS_Store')], force: true)
   end
 
   private
 
   def embedded?
-    Dir[File.join(target_dir, 'libgccjit.so*')].any?
+    Dir[File.join(target_dir, 'libgcc*')].any?
   end
 
   def target_dir
-    File.join(lib_dir, 'gcc', gcc_version)
-  end
-
-  def gcc_version
-    @gcc_version ||= Dir[File.join(gcc_dir, 'lib', 'gcc', '*', 'libgcc*')]
-                     .map { |path| File.basename(File.dirname(path)) }
-                     .select { |path| path.match(/^\d+$/) }
-                     .uniq.map(&:to_i).max.to_s
+    File.join(invocation_dir, gcc_info.relative_lib_dir)
   end
 
   def source_dir
-    @source_dir ||= File.join(gcc_dir, 'lib', 'gcc', gcc_version)
+    gcc_info.lib_dir
+  end
+end
+
+class GccInfo
+  include Output
+
+  def root_dir
+    @root_dir ||= `brew --prefix gcc`.chomp
+  end
+
+  def major_version
+    @major_version ||= File.basename(lib_dir)
+  end
+
+  def lib_dir
+    @lib_dir ||= Dir[File.join(root_dir, 'lib/gcc/*/libgcc*')]
+                 .map { |path| File.dirname(path) }
+                 .select { |path| File.basename(path).match(/^\d+$/) }
+                 .max_by { |path| File.basename(path).to_i }
+  end
+
+  def relative_lib_dir
+    @relative_lib_dir ||= relative_dir(lib_dir, root_dir)
+  end
+
+  def darwin_lib_dir
+    @darwin_lib_dir ||= Dir[
+      File.join(lib_dir, 'gcc/*apple-darwin*/*')
+    ].max_by do |path|
+      [
+        File.basename(File.dirname(path)).match(/darwin(\d+)$/)[1].to_i,
+        File.basename(path).split('.').map(&:to_i)
+      ]
+    end
+  end
+
+  def relative_darwin_lib_dir
+    @relative_darwin_lib_dir ||= relative_dir(darwin_lib_dir, root_dir)
+  end
+
+  def libgccjit_root_dir
+    @libgccjit_root_dir ||= `brew --prefix libgccjit`.chomp
+  end
+
+  def libgccjit_major_version
+    @libgccjit_major_version ||= File.basename(libgccjit_lib_dir.to_s)
+  end
+
+  def libgccjit_lib_dir
+    @libgccjit_lib_dir ||= Dir[
+      File.join(libgccjit_root_dir, 'lib/gcc/*/libgccjit.so*')
+    ]
+                           .map { |path| File.dirname(path) }
+                           .select { |path| File.basename(path).match(/^\d+$/) }
+                           .max_by { |path| File.basename(path).to_i }
+  end
+
+  def verify_libgccjit
+    err 'gcc not installed' unless Dir.exist?(root_dir)
+    err 'libgccjit not installed' unless Dir.exist?(libgccjit_root_dir)
+
+    if libgccjit_lib_dir&.empty?
+      err "Detected libgccjit (#{libgccjit_root_dir}) does not have any " \
+          'libgccjit.so* files. Please try reinstalling libgccjit: ' \
+          'brew reinstall libgccjit'
+    end
+
+    return if major_version == libgccjit_major_version
+
+    err <<~TEXT
+      Detected GCC and libgccjit library paths do not belong to the same major
+      version of GCC. Detected paths:
+        - #{lib_dir}
+        - #{libgccjit_lib_dir}
+    TEXT
+  end
+
+  def get_binding
+    binding
+  end
+
+  private
+
+  def relative_dir(path, root)
+    root += '/' unless root[-1] == '/'
+    return if path[0..root.size - 1] != root
+
+    path[root.size..-1]
   end
 end
 

patches/native-comp-env-setup.diff.erb

@@ -1,10 +1,10 @@
 diff --git a/lisp/emacs-lisp/comp.el b/lisp/emacs-lisp/comp.el
-index 25e2de9..bcedd31 100644
+index 4036080976..2ff8dbd74c 100644
 --- a/lisp/emacs-lisp/comp.el
 +++ b/lisp/emacs-lisp/comp.el
-@@ -2801,6 +2801,57 @@ queued with LOAD %"
-       (comp-run-async-workers)
-       (message "Compilation started."))))
+@@ -4079,6 +4079,52 @@ of (commands) to run simultaneously."
+   (let ((load (not (not load))))
+     (native--compile-async paths recursively load selector)))
  
 +;;;###autoload
 +(defun native-compile-setup-environment-variables (&rest _args)
@@ -15,27 +15,22 @@ index 25e2de9..bcedd31 100644
 +    (let* ((library-path-env (getenv "LIBRARY_PATH"))
 +           (devtools-dir
 +            "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib")
-+           (gcc-base-dir (concat invocation-directory "lib/gcc"))
-+           (gcc-version (car (seq-filter
-+                              (lambda (dir) (string-match-p "^[0-9]+$" dir))
-+                              (directory-files gcc-base-dir))))
-+           (gcc-dir (concat gcc-base-dir "/" gcc-version))
-+           (darwin-base-dir (car (file-expand-wildcards
-+                                      (concat gcc-dir "/gcc/*apple-darwin*"))))
-+           (darwin-version (car (seq-filter
-+                                 (lambda (dir)
-+                                   (string-match-p
-+                                    "^[0-9]+\\(\.[0-9]+\\(\.[0-9]+\\)?\\)?$" dir))
-+                                 (directory-files darwin-base-dir))))
-+           (darwin-dir (concat darwin-base-dir "/" darwin-version))
-+           (lib-paths (append
-+                       (list gcc-dir darwin-dir)
-+                       (if (file-directory-p devtools-dir)
-+                           (list devtools-dir) (list))
-+                       (if library-path-env (list library-path-env) (list)))))
++           (gcc-dir (expand-file-name
++                     "<%= relative_lib_dir %>"
++                     invocation-directory))
++           (darwin-dir (expand-file-name
++                        "<%= relative_darwin_lib_dir %>"
++                        invocation-directory))
++           (lib-paths (list)))
 +
-+      (when (and gcc-dir darwin-dir)
-+        (setenv "LIBRARY_PATH" (mapconcat 'identity lib-paths ":")))))
++      (if library-path-env
++          (push library-path-env lib-paths))
++      (if (file-directory-p devtools-dir)
++          (push devtools-dir lib-paths))
++      (push darwin-dir lib-paths)
++      (push gcc-dir lib-paths)
++
++      (setenv "LIBRARY_PATH" (mapconcat 'identity lib-paths ":"))))
 +
 +  ;; Remove advice, as it only needs to run once.
 +  (advice-remove 'native-compile