While working on something with the Intel PL/M cross compiler I improved
the UNIX driver for the 2 compiler passes somewhat.

So far the driver assumed that the PL/M source is in in current directory.
Improved, source now can be anywhere, hex and prn files will be copied to
the source directory.

If to many errors in pass 1, pass 2 won't generate a hex file sometimes,
problem is trapped.

Updated archive with all sources and docs:

Udo Munk
The fun is building it and then using it.