Don't build extensions.

We don't care about extensions, just about directories. The missing extensions might try to triger rebuild, which fails with "uninitialized constant Gem::UserInteraction" under some versions of RubyGems.
rubygems · Apr 20, 2015 · c35a959 · c35a959
1 parent 8b90945
commit c35a959
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/spec/runtime/setup_spec.rb b/spec/runtime/setup_spec.rb
@@ -643,6 +643,9 @@
       if Gem::Specification.method_defined? :extension_dir
         s = Gem::Specification.find_by_name '#{gem_name}'
         s.extension_dir = '#{ext_dir}'
+
+        # Don't build extensions.
+        s.class.send(:define_method, :build_extensions) { nil }
       end
 
       require 'bundler'