Index: ext/pathname/lib/pathname.rb
===================================================================
--- ext/pathname/lib/pathname.rb	(revision 28732)
+++ ext/pathname/lib/pathname.rb	(working copy)
@@ -655,17 +655,7 @@
   # This method has existed since 1.8.1.
   #
   def children(with_directory=true)
-    with_directory = false if @path == '.'
-    result = []
-    Dir.foreach(@path) {|e|
-      next if e == '.' || e == '..'
-      if with_directory
-        result << self.class.new(File.join(@path, e))
-      else
-        result << self.class.new(e)
-      end
-    }
-    result
+    each_child(with_directory).to_a
   end
 
   # Iterates over the children of the directory
@@ -694,8 +684,17 @@
   #   #   #<Pathname:src>
   #   #   #<Pathname:man>
   #
-  def each_child(with_directory=true, &b)
-    children(with_directory).each(&b)
+  def each_child(with_directory=true)
+    block_given? or return enum_for(__method__, with_directory)
+    with_directory = false if @path == '.'
+    Dir.foreach(@path) {|e|
+      next if e == '.' || e == '..'
+      if with_directory
+        yield self.class.new(File.join(@path, e))
+      else
+        yield self.class.new(e)
+      end
+    }
   end
 
   #