diff -up netpbm-10.35.60/editor/ppmfade.ppmfadeusage netpbm-10.35.60/editor/ppmfade
--- netpbm-10.35.60/editor/ppmfade.ppmfadeusage 2009-02-26 17:43:14.000000000 +0100
+++ netpbm-10.35.60/editor/ppmfade 2009-02-26 17:43:44.000000000 +0100
@@ -36,6 +36,8 @@ my $mode = $SPREAD; # default fading mo
#
# Check those command line args.
#
+sub usage();
+
if (@ARGV == 0) {
usage();
}