[gentoo-user] Building a binary package without installing

[Nikos Chantziaras]

I wish to build a binary package of glibc-2.14.1-r3.  I don't want to 
actually install it on my system.  Just build a tbz2 for it to use on 
another system.  Is there a way to do that?  Portage aborts when 
emerging an older glibc and won't let you proceed, so I can't just 
install it normally and them build a binpkg.