Problems with netpbm

[Stephen Montgomery-Smith]

I use pnmtopng that comes with the netpbm port.  It used to work, but 
with a more recent version, now when I run it with the -transparent 
option, it dies with a segmentation fault.

I could deliver more details upon request, but I would have to dig 
around a bit to make an example.  But maybe someone just "knows" why 
this is the case, or knows that there is a new version of netpbm on its 
way which fixes the problem.

Thanks, Stephen