diff -ur freedroidrpg-0.13.orig/croppy/croppy.c freedroidrpg-0.13/croppy/croppy.c
--- freedroidrpg-0.13.orig/croppy/croppy.c	2010-01-21 13:38:46.000000000 +0100
+++ freedroidrpg-0.13/croppy/croppy.c	2010-01-23 21:46:46.000000000 +0100
@@ -166,7 +166,7 @@
     {
       tmp = (char *) MyMalloc (1000000 + 1);
       vsprintf (tmp, fmt, args);
-      fprintf ( stdout , tmp );
+      fprintf ( stdout , "%s",tmp );
       fflush ( stdout );
       free (tmp);
     }
@@ -232,7 +232,7 @@
 
 	case 'h':
 	case '?':
-	  printf (usage_string);
+	  printf ("%s",usage_string);
 	  exit (0);
 	  break;
 
@@ -665,7 +665,7 @@
   //--------------------
   // Now we must determine the output filename
   //
-  sprintf ( filename , input_filename );
+  sprintf ( filename , "%s", input_filename );
   if ( strstr ( filename , ".png" ) == NULL )
     strcat ( filename , ".offset" );
   else
diff -ur freedroidrpg-0.13.orig/gluem/gluem.c freedroidrpg-0.13/gluem/gluem.c
--- freedroidrpg-0.13.orig/gluem/gluem.c	2010-01-21 13:38:46.000000000 +0100
+++ freedroidrpg-0.13/gluem/gluem.c	2010-01-23 21:46:46.000000000 +0100
@@ -618,7 +618,7 @@
 		
 	    case 'h':
 	    case '?':
-		printf (usage_string);
+		printf ("%s", usage_string);
 		exit (0);
 		break;
 		
diff -ur freedroidrpg-0.13.orig/src/init.c freedroidrpg-0.13/src/init.c
--- freedroidrpg-0.13.orig/src/init.c	2010-01-21 13:31:29.000000000 +0100
+++ freedroidrpg-0.13/src/init.c	2010-01-23 21:47:24.000000000 +0100
@@ -1264,13 +1264,13 @@
 			 * following gnu-coding standards for command line interfaces */
 		case 'v':
 			printf("\n%s %s  \n", PACKAGE, VERSION);
-			printf(copyright);
+			printf("%s", copyright);
 			exit(0);
 			break;
 
 		case 'h':
 		case '?':
-			printf(usage_string);
+			printf("%s", usage_string);
 			exit(0);
 			break;