New -find actions update_merge, rm_merge, clear_merge. -cp_clone now merges.

libisoburn/trunk/xorriso/xorriso_private.h

@@ -582,6 +582,10 @@ struct XorrisO { /* the global context of xorriso */
 
  struct PermiteM *perm_stack; /* Temporarily altered dir access permissions */
 
+ /* bit0= update_merge active: mark all newly added nodes as visited+found
+ */
+ int update_flags;
+
  /* result (stdout, R: ) */
  char result_line[10*SfileadrL];
  int result_line_counter;