id summary reporter owner description type status milestone component version severity resolution keywords cc 2377 Fix gcc 4.4 preprocessor problem in Proto. Daniel James Eric Niebler "The upcoming gcc 4.4 release is going to change the preprocessor in a way which breaks the use of the preprocessor for iteration in some boost files. The attached patch fixes this for proto. " Bugs closed Boost 1.37.0 xpressive Boost 1.36.0 Problem fixed