diff --git a/include/boost/preprocessor/config/config.hpp b/include/boost/preprocessor/config/config.hpp
index 74c8a7d..8be0e47 100644
--- a/include/boost/preprocessor/config/config.hpp
+++ b/include/boost/preprocessor/config/config.hpp
@@ -73,7 +73,7 @@
 # define BOOST_PP_VARIADICS_MSVC 0
 # if !defined BOOST_PP_VARIADICS
 #    /* variadic support explicitly disabled for all untested compilers */
-#    if defined __GCCXML__ || defined __CUDACC__ || defined __PATHSCALE__ || defined __DMC__ || defined __CODEGEARC__ || defined __BORLANDC__ || defined __MWERKS__ || defined __SUNPRO_CC || defined __HP_aCC && !defined __EDG__ || defined __MRC__ || defined __SC__ || defined __IBMCPP__ || defined __PGI
+#    if defined __GCCXML__ || defined __CUDACC__ || 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 __IBMCPP__ || defined __PGI
 #        define BOOST_PP_VARIADICS 0
 #    /* VC++ (C/C++) */
 #    elif defined _MSC_VER && _MSC_VER >= 1400 && (!defined __EDG__ || defined(__INTELLISENSE__)) && !defined __clang__