[bug-gv] gv fails when fed via pipe

[Paul Wessel]

Hi list-

I have noticed that gv often crashes when a process writes PostScript directly 
to it via a pipe while the same PostScript, if first saved to a file, opens 
fine.  These cases always involves the image operator.  We _think_ we are 
writing the PS correctly as it works in all other contexts except the piping 
via gv.

Attached is a small example (issue.ps) that demonstrates the issue. For 
instance,

gv issue.ps     [works fine]
gv - < issue.ps [gives errors]

I am using gv version 3.7.4 installed via macports on OSX 10.9.2.

Cheers, Paul