These ebuilds come from http://ebuild.gentoo.gr.jp/.
If you have some problems, go to the official site first.
x86cpucaps : x86cpucaps is a library, which investigates the various information on CPU using 'cpuid' in assembler. ( http://members.jcom.home.ne.jp/jacobi/linux/softwares.html#x86cpucaps )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a gentoojp
For Paludis use this rsync : rsync://gentoo.zugaina.org/gentoojp-portage
If you have a problem : ycarus(-at-)zugaina.org