Issue #7484 has been updated by usa (Usaku NAKAMURA). I asked aaron about this commit, and he confirmed the patch. Goto-san, please commit it! ---------------------------------------- Bug #7484: Fiddle::Importer incompatibility with DL::Importer https://bugs.ruby-lang.org/issues/7484#change-34390 Author: ngoto (Naohisa Goto) Status: Assigned Priority: High Assignee: tenderlovemaking (Aaron Patterson) Category: ext Target version: ruby -v: - As described in r38054, Fiddle::Importer is not compatible with DL::Importer about :stdcall. I hope attached patch fixed the issue. -- http://bugs.ruby-lang.org/