I don't know if this is just a problem I had, but I downloaded rc6,7, and 8 and they all exhibited it: followed ppc install instructions on my B&W G3, when running "scripts/bootstrap.sh" got "could not run/locate gcc!" and compilation failed. running GCC at command prompt at this point also gave me the error. I had to resolve by adding "/usr/powerpc-unknown-linux-gnu/gcc-bin/3.2" to the END of the PATH line in /usr/sbin/ebuild.sh, delete /usr/bin/gcc, run bootstrap.sh again, ^Z the bootstrap after portage emerged (while next package was downloading) and add the path AGAIN in /usr/sbin/ebuild.sh, then I ran 'fg' to go back to the bootstrap. Everything worked fine after that. It seems that /usr/bin/gcc in the stage1 tarball is borked, or the profile is missing or something. This effectively makes the PPC port uninstallable for anyone without some serious time to waste and a decent linux knowledgebase. Could this also be caused by documentation bitrot on the PPC side of the fence?
On some releases you have to run 'gcc-config' first. But the next CD release, outcoming next week, will solve this problem. Nevertheless thanks for reminding us to this bug!
Should be fixed.