% svn diff --diff-cmd diff -x '-u -p'
Index: lib/rake/application.rb
===================================================================
--- lib/rake/application.rb	(revision 49204)
+++ lib/rake/application.rb	(working copy)
@@ -452,7 +452,7 @@ module Rake
             "(default is number of CPU cores + 4)",
             lambda { |value|
               if value.nil? || value == ''
-                value = FIXNUM_MAX
+                value = 2**32
               elsif value =~ /^\d+$/
                 value = value.to_i
               else
@@ -783,8 +783,5 @@ module Rake
       backtrace.find { |str| str =~ re } || ''
     end
 
-  private
-    FIXNUM_MAX = (2**(0.size * 8 - 2) - 1) # :nodoc:
-
   end
 end
Index: numeric.c
===================================================================
--- numeric.c	(revision 49204)
+++ numeric.c	(working copy)
@@ -3671,11 +3671,19 @@ fix_abs(VALUE fix)
  *     1.size            #=> 4
  *     -1.size           #=> 4
  *     2147483647.size   #=> 4
+ *
+ *  This method will be changed in future.
+ *  Use RbConfig::SIZEOF['long'] instead:
+ *
+ *    require 'rbconfig/sizeof'
+ *    RbConfig::SIZEOF['long']  #=> 4
+ *
  */
 
 static VALUE
 fix_size(VALUE fix)
 {
+    rb_warn("Use RbConfig::SIZEOF['long'] instead of Fixnum#size");
     return INT2FIX(sizeof(long));
 }
 
Index: test/ruby/test_enumerator.rb
===================================================================
--- test/ruby/test_enumerator.rb	(revision 49204)
+++ test/ruby/test_enumerator.rb	(working copy)
@@ -1,4 +1,5 @@
 require 'test/unit'
+require 'rbconfig/sizeof'
 
 class TestEnumerator < Test::Unit::TestCase
   def setup
@@ -115,7 +116,7 @@ class TestEnumerator < Test::Unit::TestC
 
   def test_with_index_large_offset
     bug8010 = '[ruby-dev:47131] [Bug #8010]'
-    s = 1 << (8*1.size-2)
+    s = 1 << (8*RbConfig::SIZEOF['long']-2)
     assert_equal([[1,s],[2,s+1],[3,s+2]], @obj.to_enum(:foo, 1, 2, 3).with_index(s).to_a, bug8010)
     s <<= 1
     assert_equal([[1,s],[2,s+1],[3,s+2]], @obj.to_enum(:foo, 1, 2, 3).with_index(s).to_a, bug8010)