SOURCE_SETS ----------- .. versionadded:: 4.4 Read-only list of the target's ``PRIVATE`` and ``PUBLIC`` source sets (i.e. all file sets with the type ``SOURCES``). Files listed in these file sets are treated as source files. Source sets may be defined using the :command:`target_sources` command ``FILE_SET`` option with type ``SOURCES``. See also :prop_tgt:`SOURCE_SET_`, :prop_tgt:`SOURCE_SET` and :prop_tgt:`INTERFACE_SOURCE_SETS`.