find_package_handle_standard_args for target-only modules

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find_package_handle_standard_args for target-only modules

Mateusz Loskot
Hi,

When writing a new FindX.cmake module following the spirit of Modern CMake,
that is without setting any X_LIBRARY and X_INCLUDE_DIR variables,
what is the strategy regarding use of find_package_handle_standard_args?

Shall I not use find_package_handle_standard_args at all?
If yes, shall I set X_FOUND and issue any related messages myself?

Shall I use it:
   find_package_handle_standard_args(X DEFAULT_MSG X_LIBRARY X_INCLUDE_DIR)
and follow with
   unset(X_LIBRARY)
    unset(X_INCLUDE_DIR)
annoying users of FindX.cmake

Shall I simply forget the Modern CMake and set the legacy style variables?

Or something else?

Best regards,
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Mateusz Loskot, http://mateusz.loskot.net
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Mateusz Loskot
http://mateusz.loskot.net