diff --git a/build-emacs-for-macos b/build-emacs-for-macos
index cb499f2..0070a5f 100755
--- a/build-emacs-for-macos
+++ b/build-emacs-for-macos
@@ -713,7 +713,9 @@ class GccLibEmbedder < AbstractEmbedder
 
     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)
+    FileUtils.chmod_R('u+w', target_dir)
+    FileUtils.mv(source_darwin_dir, target_darwin_dir)
   end
 
   private
@@ -726,9 +728,21 @@ class GccLibEmbedder < AbstractEmbedder
     File.join(invocation_dir, gcc_info.relative_lib_dir)
   end
 
+  def source_darwin_dir
+    File.join(invocation_dir, gcc_info.relative_darwin_lib_dir)
+  end
+
+  def target_darwin_dir
+    File.join(invocation_dir, gcc_info.sanitized_relative_darwin_lib_dir)
+  end
+
   def source_dir
     gcc_info.lib_dir
   end
+
+  def relative_dir(path, root)
+    Pathname.new(path).relative_path_from(Pathname.new(root)).to_s
+  end
 end
 
 class GccInfo
@@ -768,6 +782,17 @@ class GccInfo
     @relative_darwin_lib_dir ||= relative_dir(darwin_lib_dir, root_dir)
   end
 
+  # Sanitize folder name with full "MAJOR.MINOR.PATCH" version number to just
+  # the MAJOR version. Apple's codesign CLI tool throws a "bundle format
+  # unrecognized" error if there are any folders with two dots in their name
+  # within the Emacs.app application bundle.
+  def sanitized_relative_darwin_lib_dir
+    @sanitized_relative_darwin_lib_dir ||= File.join(
+      File.dirname(relative_darwin_lib_dir),
+      File.basename(relative_darwin_lib_dir).split('.').first
+    )
+  end
+
   def libgccjit_root_dir
     @libgccjit_root_dir ||= `brew --prefix libgccjit`.chomp
   end
@@ -812,10 +837,7 @@ class GccInfo
   private
 
   def relative_dir(path, root)
-    root += '/' unless root[-1] == '/'
-    return if path[0..root.size - 1] != root
-
-    path[root.size..-1]
+    Pathname.new(path).relative_path_from(Pathname.new(root)).to_s
   end
 end
 
diff --git a/patches/native-comp-env-setup.diff.erb b/patches/native-comp-env-setup.diff.erb
index c9b61ef..caa29f6 100644
--- a/patches/native-comp-env-setup.diff.erb
+++ b/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 4036080976..2ff8dbd74c 100644
+index 8c638312b0..87af889ef4 100644
 --- a/lisp/emacs-lisp/comp.el
 +++ b/lisp/emacs-lisp/comp.el
-@@ -4079,6 +4079,52 @@ of (commands) to run simultaneously."
+@@ -4215,6 +4215,52 @@ native-compile-async
    (let ((load (not (not load))))
-     (native--compile-async paths recursively load selector)))
+     (native--compile-async files recursively load selector)))
  
 +;;;###autoload
 +(defun native-compile-setup-environment-variables (&rest _args)
@@ -19,7 +19,7 @@ index 4036080976..2ff8dbd74c 100644
 +                     "<%= relative_lib_dir %>"
 +                     invocation-directory))
 +           (darwin-dir (expand-file-name
-+                        "<%= relative_darwin_lib_dir %>"
++                        "<%= sanitized_relative_darwin_lib_dir %>"
 +                        invocation-directory))
 +           (lib-paths (list)))
 +
@@ -54,4 +54,4 @@ index 4036080976..2ff8dbd74c 100644
 +
  (provide 'comp)
  
- ;;; comp.el ends here
+ ;; LocalWords: limplified limplified limplification limplify Limple LIMPLE libgccjit elc eln