The rubygems-0.8.10.ebuild installs successfully on Mac OS X Tiger assuming that the ruby.eclass file has been patched as described in bug 96862. Reproducible: Always Steps to Reproduce: 1. Patch ruby.eclass (bug 96862) 2. emerge rubygems Actual Results: Successful emerge.
The ruby.eclass bug has been resolved, and I was able to compile and run gem tools a bit. Marking ~ppc-macos in CVS. Thanks for the report!