There is no way to get genkernel to support distcc without hacking the genkernel script itself. Setting your PATH to include /usr/lib/distcc/bin at the front does not work because one of the first things genkernel does is hardcode the path. I'm not sure what the best way is to solve this, whether it's to use the inheirited PATH (possibly with additions inside of the sript), or the FEATURES in /etc/make.conf, but I thought I'd at least report it.
... This isn't a bug. --kernel-cc=<compiler> It's even listed as the example for distcc when using --help. ;]
