I'm not really an expert with this, but I discovered a warning while compiling xafc with Fink 0.5.3 on an Apple PowerBook G4 1GHz running Mac OS 10.2.6. I'm simply gonna append some Textpassages out of the Shell (tcsh), hope it serves you well.
thank you.
peace
pascal
p.s.
the "report this bug" -messages appeares to the end of the appended file