Issue #1960 has been updated by Yutaka Kanemoto. File conf.diff added It seemed that 1.8.6p383 need to back port r15777 and r15779. At least, I was able to install rubygems by using attached patch. This issue did not occur on ruby_1_8. % gem env RubyGems Environment: - RUBYGEMS VERSION: 1.3.5 - RUBY VERSION: 1.8.6 (2009-08-04 patchlevel 383) [powerpc-aix5.3.0.0] - INSTALLATION DIRECTORY: /somewhere/nanika/lib/ruby/gems/1.8 - RUBY EXECUTABLE: /somewhere/nanika/bin/ruby - EXECUTABLE DIRECTORY: /somewhere/nanika/bin - RUBYGEMS PLATFORMS: - ruby - powerpc-aix-5 - GEM PATHS: - /somewhere/nanika/lib/ruby/gems/1.8 - /somewhere/.gem/ruby/1.8 - GEM CONFIGURATION: - :update_sources => true - :verbose => true - :benchmark => false - :backtrace => false - :bulk_threshold => 1000 - :sources => ["http://gems.rubyforge.org"] - REMOTE SOURCES: - http://gems.rubyforge.org ---------------------------------------- http://redmine.ruby-lang.org/issues/show/1960 ---------------------------------------- http://redmine.ruby-lang.org