diy 2019-05-14 (41fd7af6)

Code extracted from:

    https://gitlab.kitware.com/third-party/diy2.git

at commit 41fd7af6208a5539b7675bfc488df8739f9a8f97 (for/vtk-m).

include/vtkmdiy/fmt/format.h

@@ -264,13 +264,17 @@ typedef __int64          intmax_t;
 // makes the fmt::literals implementation easier. However, an explicit check
 // for variadic templates is added here just in case.
 // For Intel's compiler both it and the system gcc/msc must support UDLs.
-# define FMT_USE_USER_DEFINED_LITERALS \
-   FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
+#if FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
    (FMT_HAS_FEATURE(cxx_user_literals) || \
      (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900) && \
    (!defined(FMT_ICC_VERSION) || FMT_ICC_VERSION >= 1500)
+#define FMT_USE_USER_DEFINED_LITERALS 1
+#else
+define FMT_USE_USER_DEFINED_LITERALS 0
+#endif
 #endif
 
+
 #ifndef FMT_USE_EXTERN_TEMPLATES
 # define FMT_USE_EXTERN_TEMPLATES \
     (FMT_CLANG_VERSION >= 209 || (FMT_GCC_VERSION >= 303 && FMT_HAS_GXX_CXX11))