Pushed to taavi_burns/pypy
78d2ef3 Adds ones_like and zeros_like ufuncs.
9445018 Initialize master_fd to -1 (like CPython) which is the value that will
39bf273 Hack at forkpty() to give it 2-level hooks, like a regular fork().
619e398 Simplification: we don't actually need the -M option (backend)
37b092c Yay, finally found out the objdump option "-m i386:x86-64".