requiring yacc to build xkbcomp

[Julien Cristau]

On Thu, Jul  8, 2010 at 12:31:57 -0400, Gaetan Nadon wrote:

> On Thu, 2010-07-08 at 16:28 +0100, Julien Cristau wrote:
> 
> > When building from tarball, yacc isn't needed because xkbparse.c is
> > shipped.
> > 
> 
> I don't see how this is related to the patch. The AC_PROG_YACC behavior
> is wrong, the patch attempts
> to restore the design intent (maybe we were both wrong there). 
> 
The patch makes my build fail when I don't have bison installed in the
chroot, while it built fine before.

Cheers,
Julien