This is a stubbed out version of PCR, that is intended to run restricted Cedar code in a vanilla UNIX world.  Restrictions include:

1. No threads
2. No dynamic loading
3. UNIX limits on file descriptors, etc.

The code is largely taken from Mike Agostino's pseudo-PCR.  Some attempt was made to remove RS-6000 specific emulations, as well as anachronisms.  Some of this would need to be put back in if we needed to run on RS-6000 again.  Alternatively, another RS-6000 specific emulation layer could be added.

Hans