ruby-gettext-0.8.0 has bug. When the ruby source file is end with not LINEFEED character, it go into infinite loop. 0.9.0 is already out and have no same bug. I just copied 0.8.0's ebuild and worked well - I have did download the tarball to the distfiles..
in portage, but 1.0.0 is the current version now so that's what went in.