CMake Warning at .*/Modules/ExternalData.cmake:[0-9]+ \(message\):
  ExternalData_LINK_CONTENT cannot be used in-source
Call Stack \(most recent call first\):
  .*
  NoLinkInSource\.cmake:[0-9]+ \(ExternalData_Expand_Arguments\)
  CMakeLists\.txt:[0-9]+ \(include\)
