message: Use WIN32_LEAN_AND_MEAN on Windows
  This makes Windows.h includes less headers that we don't want and will
  help with compilation.
diff: @@ -67,6 +67,8 @@ endif()
  if (WIN32)
  # Define NOMINMAX to prevent conflicts between std::min/max and the min/max macros in WinDef.h
  list(APPEND NXT_DEFS "NOMINMAX")
  + # Avoid Windows.h including a lot of headers
  + list(APPEND NXT_DEFS "WIN32_LEAN_AND_MEAN")
  # Remove compile error where the mock NXT creates too many sections for the old obj format.
  list(APPEND NXT_FLAGS "/bigobj")
  endif()
  