utf8/extconf.rb |    4 ++++

 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/utf8/extconf.rb b/utf8/extconf.rb

index fd3c655..01cf06c 100644

--- a/utf8/extconf.rb

+++ b/utf8/extconf.rb

@@ -1,5 +1,9 @@

 require 'mkmf'

+if ! defined? PLATFORM

+  PLATFORM = RUBY_PLATFORM

+end

+

 def have_library_ex(lib, func="main", headers=nil)

   checking_for "#{func}() in -l#{lib}" do

     libs = append_library($libs, lib)