1 files changed, 14 insertions, 0 deletions
diff --git a/lib/rubygems/stub_specification.rb b/lib/rubygems/stub_specification.rb
index 221dc1d404..49a6df43a3 100644
--- a/lib/rubygems/stub_specification.rb
+++ b/lib/rubygems/stub_specification.rb
@@ -120,6 +120,13 @@ class Gem::StubSpecification < Gem::BasicSpecification
     super
   end
 
+  def missing_extensions?
+    return false if default_gem?
+    return false if extensions.empty?
+
+    to_spec.missing_extensions?
+  end
+
   ##
   # Name of the gem
 
@@ -147,7 +154,14 @@ class Gem::StubSpecification < Gem::BasicSpecification
   # The full Gem::Specification for this gem, loaded from evalling its gemspec
 
   def to_spec
+    @spec ||= Gem.loaded_specs.values.find { |spec|
+      spec.name == @name and spec.version == @version
+    }
+
     @spec ||= Gem::Specification.load(loaded_from)
+    @spec.ignored = @ignored if instance_variable_defined? :@ignored
+
+    @spec
   end
 
   ##