From: vaeth@mathematik.uni-wuerzburg.de   
      
   J.O. Aho  wrote:   
   >   
   > echo "=sys-devel/gcc-4.3.0 -* ~*" >> /etc/portage/package.keywords   
      
   -* is obsolete, and using "=" is problematic since you wont get upgrades   
   (which might be security relevant).   
      
   > emerge =sys-devel/gcc-4.3.0   
      
   The best way to unmask things is to use first "eix" or even "eix -l"   
   for the package:   
   It will show you whether ~ARCH (=nothing) is sufficient or whether you   
   need * (or to specify the alien architecture directly) or ~* (or to   
   specify the alien testing architecture directly) or even ** (to unmask   
   regardless of anything).   
   You should not use a stronger keywords than necessary to avoid undesired   
   upgrades. eix -T (or eix-test-obsolete) will "warn" you if you used too   
   much...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)