# File lib/cgikit/package.rb, line 162
    def exec_hook( path, pre, post, &block )
      pre = File.join(path, pre)
      post = File.join(path, post)
      if FileTest.exist?(pre) then
        require(pre) 
      end
      block.call if block_given?
      if FileTest.exist?(post) then
        require(post) 
      end
    end