9ba8698f67fc6506664bd0584298110b2c991cc9
braney
  Sat Jul 3 08:04:07 2010 -0700
use PNG if USE_PNG
diff --git src/tracks/tracks.c src/tracks/tracks.c
index 017ce86..eeb1305 100644
--- src/tracks/tracks.c
+++ src/tracks/tracks.c
@@ -1455,8 +1455,13 @@
 chmod(mapTn.forCgi, 0666);
 
 /* Save out picture and tell html file about it. */
+#ifdef USE_PNG
+makeTempName(&gifTn, "trk", ".png");
+mgSavePng(mg, gifTn.forCgi, FALSE);
+#else
 makeTempName(&gifTn, "trk", ".gif");
 mgSaveGif(mg, gifTn.forCgi, FALSE);
+#endif
 printf("<INPUT TYPE=HIDDEN NAME=map VALUE=\"%s\">\n", mapTn.forCgi);
 printf(
     "<P><INPUT TYPE=IMAGE SRC = \"%s\" BORDER=1 WIDTH=%d HEIGHT=%d NAME = \"mouse\" ALIGN=BOTTOM><BR>\n",