--- a/Meerwald/wm_dugad_e.c	Wed Apr 16 15:55:52 2008 +0200
+++ b/Meerwald/wm_dugad_e.c	Tue Apr 22 13:36:05 2008 +0200
@@ -40,7 +40,7 @@
   char signature_name[MAXPATHLEN];
 
   int i, c;
-  int row, col;
+  int row;
 
   int n;
 
@@ -58,7 +58,7 @@
   Image_tree dwts, s;
 
   gray maxval;
-  int rows, cols, colors, format;
+  int rows, cols, format;
 
   double *watermark;
 
@@ -99,7 +99,7 @@
       case 'l': 
         level = atoi(optarg);
         if (level <= 0) {
-          fprintf(stderr, "%s: decomposition level %d out of range\n", level);
+          fprintf(stderr, "%s: decomposition level %d out of range\n", progname, level);
           exit(1);
         }
         break;
@@ -142,14 +142,15 @@
     exit(1);
   }
 
-  if (argc == 1 && *argv[0] != '-')
+  if (argc == 1 && *argv[0] != '-') {
     if ((in = fopen(argv[0], "rb")) == NULL) {
       fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
       exit(1);
     }
     else
       strcpy(input_name, argv[0]);
-
+  }
+  
   if (sig) {
     char line[32];
     fgets(line, sizeof(line), sig);