threads without kernel mods

[Stephen Hocking]

	I put together a small package to do this sort of thing on 286/386
systems. It used a combination of longjmp/setjmp and alloca to get the stack
to the right position. It was created in response to a need to translate
some Modula 2 code to C, and thus has semantics similar to that langauges
TRANSFER & NEWPROCESS routines, although workspace allocation is done
internally.

	Stephen