diff -ur xmrm-2.0/io.cc xmrm-2.0.new/io.cc
--- xmrm-2.0/io.cc	2009-05-23 14:54:21 +0000
+++ xmrm-2.0.new/io.cc	2009-05-23 14:51:50 +0000
@@ -925,7 +925,7 @@
   // 
   *directory = '\0';
   if ( filename )
-    if ( help = strrchr( filename, '/') )
+    if ( help = strrchr((char *)filename, '/') )
     {
       (void) strcpy( directory, filename );
       help = strrchr(directory, '/');
@@ -1713,7 +1713,7 @@
       return;
     }
     
-    extension=strrchr(filename, '/');
+    extension=strrchr((char *)filename, '/');
 
 //    if( *(++extension)=='\0' )
 //    {
@@ -1731,7 +1731,7 @@
       number[1] = '0' + i/100;
       number[2] = '0' + (i%100)/10;
       number[3] = '0' + (i%10);
-      extension=strrchr(filename, '/');
+      extension=strrchr((char *)filename, '/');
     }
     
     if (i==1000)
@@ -1766,11 +1766,11 @@
           }
       }
 
-      extension = strstr(filename,number);
+      extension = strstr((char *)filename,number);
       *(++extension) = '0' + pic_num/100;
       *(++extension) = '0' + (pic_num%100)/10;
       *(++extension) = '0' + (pic_num%10);
-      extension = strrchr(filename, '/');
+      extension = strrchr((char *)filename, '/');
         
       number[1] = '0' + pic_num/100;
       number[2] = '0' + (pic_num%100)/10;
@@ -1814,7 +1814,7 @@
       else
         return;
 
-      START_fname_only = strrchr(filename,'/');
+      START_fname_only = strrchr((char *)filename,'/');
       START_fname_only++;
 
       pic_num = 0;
@@ -2174,7 +2174,7 @@
 //        return;
 //      }
 
-//      ptr=strrchr(filename, '/');
+//      ptr=strrchr((char *)filename, '/');
 //      if( *(++ptr)=='\0' )
 //      {
 //        fl_show_alert("ERROR:","Filename mustn't end with '/' !","",1);
diff -ur xmrm-2.0/io.h xmrm-2.0.new/io.h
--- xmrm-2.0/io.h	2009-05-23 14:54:21 +0000
+++ xmrm-2.0.new/io.h	2009-05-23 13:30:07 +0000
@@ -35,9 +35,9 @@
   char filename_vector[BUFSIZ];
   char filename_project[BUFSIZ];
   char filename_area_map[BUFSIZ];
-  char *URL_manual;
-  char *URL_CG_Home;
-  char *URL_TU_Vienna;
+  const char *URL_manual;
+  const char *URL_CG_Home;
+  const char *URL_TU_Vienna;
   
   void ControlClassInit();
   int GetDraw();
diff -ur xmrm-2.0/xmrm_cb.cc xmrm-2.0.new/xmrm_cb.cc
--- xmrm-2.0/xmrm_cb.cc	1998-03-09 23:00:00 +0000
+++ xmrm-2.0.new/xmrm_cb.cc	2009-05-23 13:30:23 +0000
@@ -415,7 +415,7 @@
 
 int obj_wavelets_handler(FL_OBJECT *obj, int event, FL_Coord mx, FL_Coord my, int key, void *xev)
 {
-  char *s1, *s2, *s3;
+  const char *s1, *s2, *s3;
 
   switch(event)
   {
diff -ur xmrm-2.0/xmrm_main.cc xmrm-2.0.new/xmrm_main.cc
--- xmrm-2.0/xmrm_main.cc	2009-05-23 14:54:21 +0000
+++ xmrm-2.0.new/xmrm_main.cc	2009-05-23 14:53:34 +0000
@@ -61,7 +61,7 @@
 // SLID_CONTR_pre_handler
 int SLID_CONTR_pre_handler(FL_OBJECT *ob, int event, FL_Coord mx, FL_Coord my, int key, void *xev)
 {
-  char *s1, *s2, *s3;
+  const char *s1, *s2, *s3;
 
   if ( ((event == FL_PUSH) || (event == FL_MOUSE)) && (key >= 2) )
   {
@@ -94,7 +94,7 @@
 // SLID_CONTR_post_handler
 int SLID_CONTR_post_handler(FL_OBJECT *ob, int event, FL_Coord mx, FL_Coord my, int key, void *xev)
 {
-  char *s=NULL;
+  const char *s=NULL;
   if (ob == fd_SLID_CONTR->SL_Param_a)
     s="Press right button for detailed information...";
   else if (ob == fd_SLID_CONTR->SL_Param_b)
@@ -163,7 +163,7 @@
 // MRM_post_handler
 int MRM_post_handler(FL_OBJECT *ob, int event, FL_Coord mx, FL_Coord my, int key, void *xev)
 {
-  char *s=NULL;
+  const char *s=NULL;
  
   if (ob == fd_MRM->CB_Simple_Morph)
     s="Morph Source Image into Destination Image according to your settings !";
@@ -300,7 +300,7 @@
   FL_OBJECT *obj;
   int c;
   char *argv_filename_project = NULL;
-  char *temp;
+  const char *temp;
 
 //  memory_warnings(NULL, NULL);//(void *)Warn_Mem());