--- editor/pnmquant	Tue Dec 16 17:34:11 2003
+++ editor/pnmquant.new	Fri Feb 20 14:31:03 2004
@@ -13,7 +13,8 @@
 use Getopt::Long;
 use File::Temp "tempfile";
 use File::Spec;
-use Fcntl ":seek";
+use Fcntl;
+use POSIX qw(SEEK_SET SEEK_CUR SEEK_END);
 
 my ($TRUE, $FALSE) = (1,0);
 
@@ -52,7 +53,7 @@
     my $infile;
     my $ncolors = $ARGV[0];
     
-    if (!($ncolors =~ m{ ^[[:digit:]]+$ }x ) || $ncolors == 0) {
+    if (!($ncolors =~ m{ ^[\d]+$ }x ) || $ncolors == 0) {
         print(STDERR 
               "Number of colors argument '$ncolors' is not a positive " .
               "integer.\n");
@@ -111,7 +112,7 @@
             tell(INFH);  # Avoids bogus "INFH is not referenced" warning
         }
     } else {
-        open(STDIN, "<", $infile) 
+        open(STDIN, "<" . $infile) 
             or die("Unable to open input file '$infile'.  Errno=$ERRNO");
     }
 }
@@ -152,7 +153,7 @@
         $spreadOpt = "-spreadbrightness";
     }
 
-    open(STDOUT, ">", $mapfileSpec);
+    open(STDOUT, ">" . $mapfileSpec);
 
     my $maprc = system("pnmcolormap", $ncolors, $averageOpt, $spreadOpt);