Allow for using LLVM from Homebrew and include its libc++

1 files changed, 6 insertions, 1 deletions

diff --git a/tools/mac-libs.rb b/tools/mac-libs.rb
index 534b003..94e33f4 100755
--- a/tools/mac-libs.rb
+++ b/tools/mac-libs.rb
@@ -56,6 +56,10 @@ def expand_load_path(lib, path)
         file = $fallback_rpaths
           .map { |it| File.join(it, file_name) }
           .find { |it| File.exist? it }
+	if file == nil
+          path = File.join(File.dirname(lib), file_name)
+          file = path if File.exist? path
+        end
         return file, :rpath if file
       when "executable_path"
         file = File.join(File.dirname(executable), file_name)
@@ -85,7 +89,6 @@ def install_name_tool(exec, action, path1, path2 = nil)
   args = ["-#{action.to_s}", path1]
   args << path2 if path2 != nil
 
-  FileUtils.chmod("u+w", exec)
   out, status = Open3.capture2e("install_name_tool", *args, exec)
   if status != 0
     puts out
@@ -129,6 +132,7 @@ def fixup_libs(prog, orig_path)
       next if File.exist? File.join(frameworks_dir, fwname)
       expath, _ = expand_load_path(orig_path, framework)
       FileUtils.cp_r(expath, frameworks_dir, preserve: true)
+      FileUtils.chmod_R("u+w", File.join(frameworks_dir, fwname))
       fixup_libs File.join(frameworks_dir, fwname, fwlib), libpath
     else
       libname = File.basename(libpath)
@@ -141,6 +145,7 @@ def fixup_libs(prog, orig_path)
       next if File.exist? dest
       expath, _ = expand_load_path(orig_path, libpath)
       FileUtils.copy expath, frameworks_dir
+      FileUtils.chmod("u+w", dest)
       fixup_libs dest, libpath
     end
   end