On 3/16/2015 3:25 AM, Cheng Mo wrote:

Hi Filip: It is happened on VS 2010 as well. Hi Edward: Excuse me about this question postponed. I have just had this problem and have found this thread. Could you tell me what mean by "BOOST PP level" does ? Thanks. Sincerely Mo.Cheng

Just ignore the warning. VC++ is not a C++ standard conformant preprocessor and so it gives lots of spurious warnings. If you want to get rid of the warnings altogether just add '-wd4003' to your command line. In bjam you can add '<cxxflags>-wd4003'.