(which can build C modules on the fly)
it's not clear they are still useful this way
and they are easy to confuse with pyimport()
--HG--
branch : trunk
the .lock, otherwise the other processes run the risk of seeing their temporary
dir disappear. For now we remove the .lock in the parent only (i.e. we assume
that the children finish before the parent).
This is needed for long-running pypy translate.py processes using
--fork-before.
--HG--
branch : trunk
fijal