^CMake Error at subdir2/CMakeLists\.txt:2 \(include\):
  The file

    [^
]*/Tests/RunCMake/include/CMP0024-NEW-build/subdir1/theTargets\.cmake

  was generated by the export\(\) command\.  It may not be used as the argument
  to the include\(\) command\.  Use ALIAS targets instead to refer to targets by
  alternative names\.