[M3commit] CVS Update: cm3

[Jay Krell]

CVSROOT:	/usr/cvs
Changes by:	jkrell at birch.	09/07/24 08:07:37

Modified files:
	cm3/m3-sys/m3middle/src/: Target.i3 Target.m3 m3makefile 

Log message:
	expose OS and compute both it and 64-bitness in a much easier to
	maintain way.
	If TARGET contains one underscore, OS is the part after it.
	Plus handle active legacy targets.
	Inactive targets can leave OS as empty or NIL.
	If TARGET contains "64_" or starts "ALPHA", then it is a 64 bit target.
	Maintain fewer lists of targets this way.