EXPORT_NO_SYSTEM

New in version 3.25.

This property affects the behavior of the install(EXPORT) and export() commands when they install or export the target respectively. When EXPORT_NO_SYSTEM is set to true, those commands generate an imported target with SYSTEM property set to false.

See the NO_SYSTEM_FROM_IMPORTED target property to set this behavior on the target consuming the include directories rather than the one providing them.