On Mon, 11 Feb 2002, Daniel Eischen wrote:

> On Mon, 11 Feb 2002, Terry Lambert wrote:
> > Daniel Eischen wrote:
> > > Removing <sys/ucontext.h> from <sys/signal.h> prevents ucontext_t
> > > from being defined, so all users of <signal.h> would choke.
> > >
> > > We can change the prototype of sigreturn back to struct sigcontext *,
> > > or just forward declare ucontext_t in <signal.h> or <sys/signal.h>.
> >
> > Forward declare it.  People who need its internals will
> > include the proper header.

That header is traditionally <signal.h> :-).

> How do you easily forward declare something that is a typedef?
> You could forward declare struct __ucontext and use a pointer
> to that as the argument to sigreturn, but that doesn't seem
> right as it is relying on how ucontext_t is defined.

This is OK for the implementation -- see other followups.


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