id summary reporter owner description type status milestone component version severity resolution keywords cc 2488 [spirit] patch so spirit2 uses the released version of Proto (v4) Eric Niebler Joel de Guzman Spirit2 uses Proto v2 (boost/xpressive/proto), which I intend to remove for Boost 1.38. The attached patch makes Spirit2 work with Proto v4 (boost/proto). Patches closed Boost 1.38.0 spirit Boost 1.36.0 Problem fixed