Re: signal handling

[Ralf Wildenhues]

* Ralf Wildenhues wrote on Tue, Nov 13, 2007 at 12:08:28AM CET:
> * Bob Proulx wrote on Mon, Nov 12, 2007 at 10:52:45PM CET:
> > Ralf Wildenhues wrote:
> > > Ahh.  More head scratching.  I'd appreciate if somebody could
> > > look over these two proposed patches to see if what I think how
> > > signals ought to work makes sense.
> > 
> > This one I think is the opposite of what it needs to be.
> > 
> > > +    trap '' $signal
> > 
> > I think that should be <trap - $signal> instead.  But of course that
> > was the topic of the discussion:

And part of the portability warnings in autoconf.texi.

Hmm.  I tested some more, only to add to the confusion.  Apparently
pdksh does not (always?) execute the EXIT handler when it exits from
a signal (!=0) handler, so that seems very unreliable.

For now I have only applied the aclocal.in fix which was
uncontroversial, to master and branch-1-10.

Cheers,
Ralf