> I suspect Guy Harris (guy@auspex.com) could answer this.  Guy?
> 
> : setjmp() on the sparc uses a sigaltstack(2) system call

Eh?

	bootme$ uname -a
	SunOS bootme 4.1.3 6 sun4m
	bootme$ man sigaltstack
	No manual entry for sigaltstack.

SunOS 5.x may have it (something's fubar in our lab net, it appears, so
I can't get at our 5.x machine), and 4.4BSD may have it, but SunOS 4.x
doesn't appear to have a "sigaltstack" system call.

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