[M3commit] CVS Update: cm3

[Jay Krell]

CVSROOT:	/usr/cvs
Changes by:	jkrell at birch.	08/05/03 13:17:42

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

Log message:
	fix and unify NT386 jmpbuf/setjmp
	
	it APPEARS jmpbuf was understated for Visual C++
	though it was probably ok
	it appears if you compile C/C++, the compiler generates a call
	to _setjmp3, which indeed uses more of the declared-16 jmpbuf
	but that if we call _setjmp directly, it only uses 8
	
	Cygwin was overstated because their setjmp.h
	appears to confuse bytes and ints, it only uses 13.
	
	So unify the former 8 and 13 to 16.
	
	As well, Cygwin provides aliased setjmp and _setjmp, so
	unify on _setjmp
	
	NOTE that using _setjmp3 for Visual C++ is probably desirable
	but cross that bridge another time, perhaps we'll just stop
	using setjmp entirely
	
	therefore making the three NT386 flavors much more similar