compress program on SCO Xenix

[Paul Lew]

Question:	Anyone installed compress on SCO Xenix yet?

Problem:	Compress is not doing anything, it runs but terminated
		with the file unchanged.  There are some #ifdef M_XENIX
		in the code but it may not be tested.

Environment:	IBM-PC/AT runs SCO Xenix version 2.1.3
		compress version 4.0 85/07/30 12:50:00 joe Release

Build History:	$ cc -s -o compress compress.c
		/bin/ld: Common area longer than 65535 bytes

		$ cc -Ml -s -o compress compress.c    #use large model
		$ ln compress uncompress
		$ ln compress zcat
		There was no error in any of the above 3 steps.