Re: Reading D-Bus messages

[Ken Brown <kbrown@cornell.edu>]

On 9/23/2010 9:42 AM, Michael Albinus wrote:
> Ken Brown<kbrown@cornell.edu>  writes:
>
>> Grepping /usr/include, I see that SIGIO (and FIONREAD) seem to be
>> defined.  So I think the trouble must be that these get undefined in the
>> emacs build, perhaps because of the '#undef INTERRUPT_INPUT' in
>> src/s/cygwin.h.  I changed it to '#define INTERRUPT_INPUT' and rebuilt,
>> but dbus still didn't work.  I'm in the process of bootstrapping right
>> now so I can try again.  I don't understand the build process well
>> enough to know whether bootstrapping should be necessary after this change.
>
> Same here, even after a bootstrap. For the time being I use
>
> #if defined (SIGIO) || defined (CYGWIN)
>        gobble_input (0);
> #endif /* SIGIO */
>
> But this is ugly, and it shouldn't be the final solution.

I was wrong about SIGIO being defined in Cygwin.  (I was careless in my 
grepping and didn't look closely enough at the header files.)  And an 
answer just appeared on the Cygwin list, saying that SIGIO is undefined 
because the functionality is not implemented.

So now the question is just finding the best way to deal with this.  Do 
you understand why gobble_input is called only if SIGIO is defined?

Ken