message: For windows cmake build turn on CMAKE_SUPPRESS_REGENERATION to avoid flaky
  build failures.
diff: @@ -134,6 +134,9 @@ if(WIN32)
  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /D_ITERATOR_DEBUG_LEVEL=0")
  set(CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL} /D_ITERATOR_DEBUG_LEVEL=0")
  set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /D_ITERATOR_DEBUG_LEVEL=0")
  +
  + # Try to avoid flaky failures due to failed generation of generate.stamp files.
  + set(CMAKE_SUPPRESS_REGENERATION ON)
  endif()
  if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
  