make -j 2 try to link before it finishes

[pirate486743186]

make -j 1 works fine
make -j 2 fails the first run, i think it tries to link before it finishes. the second run it finishes in time before of the stuff it did earlier. I have a slow laptop, so that could be what exposes the problem and why you didn't notice.

berserk compilation seams fine. because it's a bit random, it could still have it.