[GRASSLIST:1601] Missing Commands

[Eric Powell]

Hi All-

This may have been covered ad nausem, but I am a newbie...

I have build and installed Grass5.0.3rc3 on Gentoo Linux, most
functionality works, however, r.in.tiff returns a message of "Command
not found". However, when I look in the /usr/local/grass5/bin/
directory, the executable is there. 

What gives?

Any help would be appreciated.

Thanks,

Eric