Use proper path for plugin wrappers.

ruby.spec

@@ -153,6 +153,9 @@ Patch10: ruby-3.0.0-Fixed-dangling-imemo_tmpbuf.patch
 # https://bugs.ruby-lang.org/issues/17536
 # https://github.com/ruby/ruby/pull/4077
 Patch11: ruby-3.0.0-Dont-try-to-clear-cache-on-garbage-objects.patch
+# Use proper path for plugin wrappers.
+# https://github.com/rubygems/rubygems/pull/4317
+Patch12: rubygems-3.2.7-Generate-plugin-wrappers-with-relative-requires.patch
 # Avoid possible timeout errors in TestBugReporter#test_bug_reporter_add.
 # https://bugs.ruby-lang.org/issues/16492
 Patch19: ruby-2.7.1-Timeout-the-test_bug_reporter_add-witout-raising-err.patch
@@ -603,6 +606,7 @@ rm -rf ext/fiddle/libffi*
 %patch9 -p1
 %patch10 -p1
 %patch11 -p1
+%patch12 -p1
 %patch19 -p1
 
 # Provide an example of usage of the tapset:
@@ -1373,6 +1377,7 @@ MSPECOPTS="$MSPECOPTS -P 'raises TypeError if one of the passed exceptions is no
 %changelog
 * Mon Jan 25 2021 Vít Ondruch <vondruch@redhat.com> - 3.0.0-145
 - Bundle OpenSSL into StdLib.
+- Use proper path for plugin wrappers.
 
 * Sat Jan 16 2021 Vít Ondruch <vondruch@redhat.com> - 3.0.0-144
 - Fix SEGFAULT in rubygem-shoulda-matchers test suite.

rubygems-3.2.7-Generate-plugin-wrappers-with-relative-requires.patch

@@ -0,0 +1,47 @@
+From db4157e9aa7b7f720ee06fb866b53ad11879c016 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@riseup.net>
+Date: Mon, 25 Jan 2021 15:40:26 +0100
+Subject: [PATCH] Generate plugin wrappers with relative requires
+
+It shouldn't change behaviour and it fixes broken wrappers generated
+with `--build-root` flag is used.
+---
+ lib/rubygems/installer_uninstaller_utils.rb | 7 ++++++-
+ test/rubygems/test_gem_installer.rb         | 2 ++
+ 2 files changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/lib/rubygems/installer_uninstaller_utils.rb b/lib/rubygems/installer_uninstaller_utils.rb
+index e81ed4cba38..2c8b7c635e1 100644
+--- a/lib/rubygems/installer_uninstaller_utils.rb
++++ b/lib/rubygems/installer_uninstaller_utils.rb
+@@ -6,11 +6,16 @@
+ module Gem::InstallerUninstallerUtils
+ 
+   def regenerate_plugins_for(spec, plugins_dir)
++    plugins = spec.plugins
++    return if plugins.empty?
++
++    require 'pathname'
++
+     spec.plugins.each do |plugin|
+       plugin_script_path = File.join plugins_dir, "#{spec.name}_plugin#{File.extname(plugin)}"
+ 
+       File.open plugin_script_path, 'wb' do |file|
+-        file.puts "require '#{plugin}'"
++        file.puts "require_relative '#{Pathname.new(plugin).relative_path_from(Pathname.new(plugins_dir))}'"
+       end
+ 
+       verbose plugin_script_path
+diff --git a/test/rubygems/test_gem_installer.rb b/test/rubygems/test_gem_installer.rb
+index 4ce7e92442a..5652d863316 100644
+--- a/test/rubygems/test_gem_installer.rb
++++ b/test/rubygems/test_gem_installer.rb
+@@ -821,6 +821,8 @@ def test_generate_plugins_with_build_root
+ 
+     assert !File.exist?(system_path), 'plugin written incorrect written to system plugins_dir'
+     assert File.exist?(build_root_path), 'plugin not written to build_root'
++
++    refute_includes File.read(build_root_path), build_root
+   end
+ 
+   def test_keeps_plugins_up_to_date