The ebuild in summary is currently forcing users to use serial make (-j1, no extra job tasks). This seems not to be needed. The ebuild was modified to use -j8 on a truly 8-core SMP system and didn't fail the build, you should either check if it's a particular USE flag to cause the problem, or drop -j1 and leave the user to decide how many jobs to use. I want to remember you that with modern multicore systems, forcing serial make is going to waste a lot of time and resources for users.. Thanks, Diego
Just note that this is ONLY valid for 0.2.10 and NOT any prior versions.
Yah, I'm explicitly filling in the version number for this reason.
fixed in 0.2.10-r1. Thanks for reporting.