--- pdumpfs.in.orig	2004-12-21 11:43:12.000000000 +0900
+++ pdumpfs.in	2013-06-22 08:58:34.000000000 +0900
@@ -48,21 +48,21 @@
 #
 
 require 'find'
-require 'ftools'
+require 'fileutils'
 require 'getoptlong'
 require 'date'
 
 class File
   def self.real_file? (path)
-    File.file?(path) and not File.symlink?(path)
+    FileTest.file?(path) and not FileTest.symlink?(path)
   end
 
   def self.anything_exist? (path)
-    File.exist?(path) or File.symlink?(path)
+    FileTest.exist?(path) or FileTest.symlink?(path)
   end
 
   def self.real_directory? (path)
-    File.directory?(path) and not File.symlink?(path)
+    FileTest.directory?(path) and not FileTest.symlink?(path)
   end
 
   def self.force_symlink (src, dest)
@@ -79,7 +79,7 @@
   end
 
   def self.readable_file? (path)
-    File.file?(path) and File.readable?(path)
+    FileTest.file?(path) and FileTest.readable?(path)
   end
 
   def self.split_all (path)
@@ -129,7 +129,7 @@
   GetVolumeInformation = Win32API.new("kernel32", "GetVolumeInformation",
                                       "PPLPPPPL", "I")
   def get_filesystem_type (path)
-    return nil unless(File.exist?(path))
+    return nil unless(FileTest.exist?(path))
 
     drive = File.expand_path(path)[0..2]
     buff = "\0" * 1024
@@ -868,7 +868,7 @@
       today  = File.join(dest, datedir(start_time), base)
 
       File.umask(0077)
-      File.mkpath(today) unless @dry_run
+      FileUtils.mkpath(today) unless @dry_run
       if latest
         update_snapshot(src, latest, today)
       else
@@ -1018,7 +1018,7 @@
 
       case type
       when "directory"
-        File.mkpath(today)
+        FileUtils.mkpath(today)
       when "unchanged"
         File.force_link(latest, today)
       when "updated"
@@ -1052,7 +1052,7 @@
 
       Find.find(src) do |s|      # path of the source file
         if @matcher.exclude?(s)
-          if File.lstat(s).directory? then Find.prune() else next end
+          if FileTest.directory?(s) then Find.prune() else next end
         end
         r = make_relative_path(s, src)
         l = File.join(latest, r)  # path of the latest  snapshot
@@ -1077,7 +1077,7 @@
 
       Find.find(src) do |s|
         if @matcher.exclude?(s)
-          if File.lstat(s).directory? then Find.prune() else next end
+          if FileTest.directory?(s) then Find.prune() else next end
         end
         r = make_relative_path(s, src)
         t = File.join(dest, r)
@@ -1089,7 +1089,7 @@
 
           case type
           when "directory"
-            File.mkpath(t)
+            FileUtils.mkpath(t)
           when "new_file"
             copy(s, t)
           when "symlink"