I have verified that this package works for ppc. Please add the ~ppc KEYWORDS to dev-ruby/ruby-gd-0.7.4 . Steps to Reproduce: 1. add the ~ppc KEYWORDS to ruby-gd-0.7.4.ebuild 2. emerge ruby-gd 3. try sample script in /usr/share/doc/ruby-gd-0.7.4/sample/
Marked ~ppc, thanks for the report.