# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_STRICT())
# elif defined(__EDG__) || defined(__EDG_VERSION__)
# if defined(_MSC_VER) && !defined(__clang__) && (defined(__INTELLISENSE__) || __EDG_VERSION__ >= 308)
-# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_MSVC())
+# if !defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL
+# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_MSVC())
+# else
+# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_STRICT())
+# endif
# else
# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_EDG() | BOOST_PP_CONFIG_STRICT())
# endif
# elif defined(__BORLANDC__) || defined(__IBMC__) || defined(__IBMCPP__) || defined(__SUNPRO_CC)
# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_BCC())
# elif defined(_MSC_VER)
-# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_MSVC())
+# if !defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL
+# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_MSVC())
+# else
+# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_STRICT())
+# endif
# else
# define BOOST_PP_CONFIG_FLAGS() (BOOST_PP_CONFIG_STRICT())
# endif
# define BOOST_PP_VARIADICS_MSVC 0
# if !defined BOOST_PP_VARIADICS
# /* variadic support explicitly disabled for all untested compilers */
-# if defined __GCCXML__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || ( defined __SUNPRO_CC && __SUNPRO_CC < 0x5120 ) || defined __HP_aCC && !defined __EDG__ || defined __MRC__ || defined __SC__ || defined __PGI
+
+# if defined __GCCXML__ || (defined __CUDACC__ && !(defined(__clang__) && defined(__CUDA__))) || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || ( defined __SUNPRO_CC && __SUNPRO_CC < 0x5120 ) || (defined __HP_aCC && !defined __EDG__) || defined __MRC__ || defined __SC__ || (defined(__PGI) && !defined(__EDG__))
# define BOOST_PP_VARIADICS 0
-# elif defined(__CUDACC__)
-# define BOOST_PP_VARIADICS 1
# elif defined(_MSC_VER) && defined(__clang__)
# define BOOST_PP_VARIADICS 1
# /* VC++ (C/C++) and Intel C++ Compiler >= 17.0 with MSVC */
# elif defined _MSC_VER && _MSC_VER >= 1400 && (!defined __EDG__ || defined(__INTELLISENSE__) || defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700)
# define BOOST_PP_VARIADICS 1
-# undef BOOST_PP_VARIADICS_MSVC
-# define BOOST_PP_VARIADICS_MSVC 1
+# if !defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL
+# undef BOOST_PP_VARIADICS_MSVC
+# define BOOST_PP_VARIADICS_MSVC 1
+# endif
# /* Wave (C/C++), GCC (C++) */
# elif defined __WAVE__ && __WAVE_HAS_VARIADICS__ || defined __GNUC__ && defined __GXX_EXPERIMENTAL_CXX0X__ && __GXX_EXPERIMENTAL_CXX0X__
# define BOOST_PP_VARIADICS 1
# elif !BOOST_PP_VARIADICS + 1 < 2
# undef BOOST_PP_VARIADICS
# define BOOST_PP_VARIADICS 1
-# if defined _MSC_VER && _MSC_VER >= 1400 && !defined(__clang__) && (defined(__INTELLISENSE__) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700) || !(defined __EDG__ || defined __GCCXML__ || defined __CUDACC__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || defined __SUNPRO_CC || defined __HP_aCC || defined __MRC__ || defined __SC__ || defined __IBMCPP__ || defined __PGI))
+# if defined _MSC_VER && _MSC_VER >= 1400 && !defined(__clang__) && (defined(__INTELLISENSE__) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700) || !(defined __EDG__ || defined __GCCXML__ || defined __CUDACC__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || defined __SUNPRO_CC || defined __HP_aCC || defined __MRC__ || defined __SC__ || defined __IBMCPP__ || defined __PGI)) && (!defined(_MSVC_TRADITIONAL) || _MSVC_TRADITIONAL)
# undef BOOST_PP_VARIADICS_MSVC
# define BOOST_PP_VARIADICS_MSVC 1
# endif