Edward Diener wrote: On 3/25/2017 12:46 PM, Peter Dimov via Boost wrote:
Well given that BOOST_PP_VARIADICS_MSVC=0 works at least some of the time and BOOST_PP_VARIADICS_MSVC=1 never works, it seems to me that the choice is a rather easy one and does not depend on any predefined macros.
I am not sure what you are saying here:
1) Are you saying that turning off BOOST_PP_VARIADICS_MSVC for clang targeting VC++ allows that compiler to work with BoostPP ?
2) Are you saying that turning off BOOST_PP_VARIADICS_MSVC for clang targeting VC++, allows that compiler to work with BoostPP when -fno-ms-compatibility is defined ?
3) 2) Are you saying that turning off BOOST_PP_VARIADICS_MSVC for clang targeting VC++, allows clang/C2 to work with BoostPP when -fno-ms-compatibility is defined ?
I'm telling you 3)2), yes, at least for this simple MPL program I tested. If I could get b2 to work with Clang/C2, I would have run the tests, but I'm not sure I can do that. I'm also telling you that since BOOST_PP_VARIADICS_MSVC=1 never works with any Clang, there is perhaps no reason to ever set it to 1 regardless of what Clang it is and what options have been defined.