unless RUBY_PLATFORM == 'java' then
  require 'mkmf'
  
  dir_config("gcov")
  if ENV["USE_GCOV"] and Config::CONFIG['CC'] =~ /gcc/ and 
    have_library("gcov", "__gcov_open")
  
    $CFLAGS << " -fprofile-arcs -ftest-coverage"
    if RUBY_VERSION =~ /1.9/
      $CFLAGS << ' -DRUBY_19_COMPATIBILITY'
      create_makefile("rcovrt", "1.9/")
    else
      create_makefile("rcovrt", "1.8/")
    end
  else
    if RUBY_VERSION =~ /1.9/
      $CFLAGS << ' -DRUBY_19_COMPATIBILITY'
      create_makefile("rcovrt", "1.9/")
    else
      create_makefile("rcovrt", "1.8/")
    end
  end
end