I'm tyring to cleanup the implementation of setjmp/longjmp &
sigsetjmp/siglongjmp on the vax.

A sigjmp_buf has one more long than a jmp_buf.  What is it for?

How does sigjmp_buf interact with sigcontext and sigreturn()?

Does jmp_buf & sigjmp_buf need to contain a copy of the sigset_t?

I need the above clarified before I know that my planned changes
can be implemented.

Thanks
--
Matt Thomas               Internet:   matt@3am-software.com
3am Software Foundry      WWW URL:    http://www.3am-software.com/bio/matt/
Cupertino, CA             Disclaimer: I avow all knowledge of this message