There is a problem with some files with so build and stdin redirection under ghostscript 8.61. This is related to bugzilla bug #416321 and resolution is suggested in ghostscript bugzilla: http://bugs.ghostscript.com/show_bug.cgi?id=689577 A new foomatic-gswrapper is provided in comment #12 of the above bug report.
A patch for this was committed to ghostscript trunk that is submitted to bug #416321. However, the above changes may still help and future problems with the same issue.
Ghostscript people are recommending to make the above change because it is more "efficient" piping and would avoid future changes.
*** Bug 426656 has been marked as a duplicate of this bug. ***
foomatic-3.0.2-53.fc8 has been pushed to the Fedora 8 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update foomatic'
foomatic-3.0.2-53.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.