ext/tkutil/extconf.rb


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for dir in ENV['PATH'].split(':')
  if File.exists? "#{dir}/wish"
    $CFLAGS = $CFLAGS + " -DWISHPATH=" + "'\"#{dir}/wish\"'"
    have_wish = TRUE
    break
  end
end

if have_wish and have_func('pipe')
  create_makefile("tkutil")
end