CMake Warning at source_subfolder/CMakeLists.txt:50 (message):
  the curl cmake build system is poorly maintained.  Be aware


CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY


CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY