add BDEP on xmlto, it's used if present (detection is done in a Makefile just before it's run, but seems xmlto takes long enough to run that kmos@ ran into a problem with dpb junking)
add BDEP on xmlto, it's used if present (detection is done in a Makefile just before it's run, but seems xmlto takes long enough to run that kmos@ ran into a problem with dpb junking)