Looks like it doesn't like headers ppc-sources-2.4.22-r3. Attached emerge --info and compile failure in snip.txt.
Created attachment 22418 [details] emerge --info
Created attachment 22419 [details] failure message
mol-0.9.68 is quite old stuff ;) I suggest to emerge one of the newer versions to gain all new features of mol. We'll mask another one stable soon.
Feel free to close when you do, since i'm no longer in possession of a friend's ppc machine to play with :-)
I resolve this bug as cantfix.