https://git.ruby-lang.org/ruby.git/commit/?id=b4ae144e19

From b4ae144e19ea5d784dfd0ed7d486c7f533d58f01 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@r...>
Date: Sat, 23 Jul 2022 10:25:22 +0200
Subject: [rubygems/rubygems] Don't use Pathname for creating extension dir

Not sure why, but I run into the following flaky test failure

````
(...)

Invoking `/Users/deivid/.asdf/installs/ruby/3.1.2/bin/ruby -I/Users/deivid/Code/rubygems/rubygems/bundler/spec -r/Users/deivid/Code/rubygems/rubygems/bundler/spec/support/artifice/fail.rb -r/Users/deivid/Code/rubygems/rubygems/bundler/spec/support/hax.rb /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/bin/bundle install` failed with output:
----------------------------------------------------------------------
--- ERROR REPORT TEMPLATE -------------------------------------------------------

```
NameError: constant Pathname::FileUtils not defined

    FileUtils.mkpath(@path, mode: mode)
    ^^^^^^^^^
  /Users/deivid/.asdf/installs/ruby/3.1.2/lib/ruby/3.1.0/pathname.rb:585:in `mkpath'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/shared_helpers.rb:103:in `filesystem_access'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/rubygems_gem_installer.rb:78:in `build_extensions'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/rubygems_gem_installer.rb:28:in `install'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/source/rubygems.rb:207:in `install'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/installer/gem_installer.rb:54:in `install'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/installer/gem_installer.rb:16:in `install_from_spec'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/installer/parallel_installer.rb:186:in `do_install'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/installer/parallel_installer.rb:177:in `block in worker_pool'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/worker.rb:62:in `apply_func'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/worker.rb:57:in `block in process_queue'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/worker.rb:54:in `loop'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/worker.rb:54:in `process_queue'
  /Users/deivid/Code/rubygems/rubygems/bundler/tmp/4/gems/system/gems/bundler-2.4.0.dev/lib/bundler/worker.rb:91:in `block (2 levels) in create_threads'

(...)
```

Whatever it was, this small change should fix it.

https://github.com/rubygems/rubygems/commit/71d7503ce4
---
 lib/bundler/rubygems_gem_installer.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/bundler/rubygems_gem_installer.rb b/lib/bundler/rubygems_gem_installer.rb
index 12cc809664..13c2d25882 100644
--- a/lib/bundler/rubygems_gem_installer.rb
+++ b/lib/bundler/rubygems_gem_installer.rb
@@ -72,10 +72,11 @@ module Bundler https://github.com/ruby/ruby/blob/trunk/lib/bundler/rubygems_gem_installer.rb#L72
         return super
       end
 
-      extension_dir = Pathname.new(extension_dir)
       build_complete = SharedHelpers.filesystem_access(extension_cache_path.join("gem.build_complete"), :read, &:file?)
       if build_complete && !options[:force]
-        SharedHelpers.filesystem_access(extension_dir.parent, &:mkpath)
+        SharedHelpers.filesystem_access(File.dirname(extension_dir)) do |p|
+          FileUtils.mkpath p
+        end
         SharedHelpers.filesystem_access(extension_cache_path) do
           FileUtils.cp_r extension_cache_path, extension_dir
         end
-- 
cgit v1.2.1


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