* ext/fiddle/extconf.rb: check for windows.h while building fiddle.

Thanks Jon Forums! [ruby-core:33923]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30407 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Tue Dec 28 04:32:37 2010  Aaron Patterson <aaron@tenderlovemaking.com>
+
+	* ext/fiddle/extconf.rb: check for windows.h while building fiddle.
+	  Thanks Jon Forums! [ruby-core:33923]
+
 Tue Dec 28 01:45:12 2010  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
 
 	* NEWS: Add Zlib.deflate and Zlib.inflate.

ext/fiddle/extconf.rb

@@ -18,6 +18,7 @@ unless have_library('ffi') || have_library('libffi')
 end
 
 have_header 'sys/mman.h'
+have_header 'windows.h'
 
 create_makefile 'fiddle'
 

test/fiddle/test_fiddle.rb

@@ -16,4 +16,14 @@ class TestFiddle < Fiddle::TestCase
       assert_equal(DL.const_get(name), Fiddle.const_get(name))
     end
   end
+
+  def test_windows_constant
+    require 'rbconfig'
+    if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
+      assert Fiddle::WINDOWS, "Fiddle::WINDOWS should be 'true' on Windows platforms"
+    else
+      refute Fiddle::WINDOWS, "Fiddle::WINDOWS should be 'false' on non-Windows platforms"
+    end
+  end
+
 end