# File src/ruby_supportlib/phusion_passenger/platform_info/compiler.rb, line 433
    def self.cxx_visibility_flag_generates_warnings?
      if os_name_simple == "linux" && `#{cxx} -v 2>&1` =~ /gcc version (.*?)/
        return $1 <= "4.1.2"
      else
        return false
      end
    end