--- netpbm-10.25/converter/other/pnmtopng.c.pnmtopng	2004-08-28 04:53:12.000000000 +0200

+++ netpbm-10.25/converter/other/pnmtopng.c	2005-09-16 14:17:47.129390456 +0200

@@ -159,7 +159,7 @@

                       unsigned int * const bestMatchP) {

     unsigned int paletteIndex;

-    unsigned int bestIndex;

+    unsigned int bestIndex = 0;

     unsigned int bestMatch;

     bestMatch = UINT_MAX;

@@ -1566,7 +1566,7 @@

       /* The color part of the color/alpha palette passed to the PNG

          compressor 

       */

-  unsigned int palette_size;

+  unsigned int palette_size = MAXCOLORS;

   gray trans_pnm[MAXCOLORS];

   png_byte  trans[MAXCOLORS];