1 files changed, 29 insertions, 9 deletions
diff --git a/lib/bundler/rubygems_ext.rb b/lib/bundler/rubygems_ext.rb
index e0582beba2..18180a81a1 100644
--- a/lib/bundler/rubygems_ext.rb
+++ b/lib/bundler/rubygems_ext.rb
@@ -1,11 +1,7 @@
 # frozen_string_literal: true
 
-require "pathname"
-
 require "rubygems" unless defined?(Gem)
 
-require "rubygems/specification"
-
 # We can't let `Gem::Source` be autoloaded in the `Gem::Specification#source`
 # redefinition below, so we need to load it upfront. The reason is that if
 # Bundler monkeypatches are loaded before RubyGems activates an executable (for
@@ -17,10 +13,6 @@ require "rubygems/specification"
 # `Gem::Source` from the redefined `Gem::Specification#source`.
 require "rubygems/source"
 
-require_relative "match_metadata"
-require_relative "force_platform"
-require_relative "match_platform"
-
 # Cherry-pick fixes to `Gem.ruby_version` to be useful for modern Bundler
 # versions and ignore patchlevels
 # (https://github.com/rubygems/rubygems/pull/5472,
@@ -31,7 +23,19 @@ unless Gem.ruby_version.to_s == RUBY_VERSION || RUBY_PATCHLEVEL == -1
 end
 
 module Gem
+  # Can be removed once RubyGems 3.5.11 support is dropped
+  unless Gem.respond_to?(:freebsd_platform?)
+    def self.freebsd_platform?
+      RbConfig::CONFIG["host_os"].to_s.include?("bsd")
+    end
+  end
+
+  require "rubygems/specification"
+
   class Specification
+    require_relative "match_metadata"
+    require_relative "match_platform"
+
     include ::Bundler::MatchMetadata
     include ::Bundler::MatchPlatform
 
@@ -48,7 +52,7 @@ module Gem
 
     def full_gem_path
       if source.respond_to?(:root)
-        Pathname.new(loaded_from).dirname.expand_path(source.root).to_s
+        File.expand_path(File.dirname(loaded_from), source.root)
       else
         rg_full_gem_path
       end
@@ -146,7 +150,23 @@ module Gem
     end
   end
 
+  module BetterPermissionError
+    def data
+      super
+    rescue Errno::EACCES
+      raise Bundler::PermissionError.new(loaded_from, :read)
+    end
+  end
+
+  require "rubygems/stub_specification"
+
+  class StubSpecification
+    prepend BetterPermissionError
+  end
+
   class Dependency
+    require_relative "force_platform"
+
     include ::Bundler::ForcePlatform
 
     attr_accessor :source, :groups