message: Multithread compilation of Dawn targets on MSVC
diff: @@ -99,6 +99,7 @@ endif()
  if (MSVC)
  list(APPEND DAWN_FLAGS "/std:c++14")
  list(APPEND DAWN_FLAGS "/EHsc")
  + list(APPEND DAWN_FLAGS "/MP")
  list(APPEND DAWN_INTERNAL_FLAGS "/W4")
  # Allow declarations hiding members as it is used all over Dawn
  list(APPEND DAWN_INTERNAL_FLAGS "/wd4458")
  