>
> if you do
> emerge -kp <packagename>
> first, it will tell you which packages are binaries and which are ebuilds
> (sources to be compiled). -p is pretend, btw, and it's a good idea to use
> -p before you emerge for real to see what's going to be done.
>
> Make sure you have a recent CD, otherwise the binaries will be out of date
> (slightly) and it will choose ebuilds instead (you can overrride this by
> specifying the version when you use emerge if you like)
>
> HTH
Or use -K (caps forces portage to use any binaries found rather than
"possibly" use them). Especially useful as the portage tree gets updated
so often. ;D