- add_library(imp::iface INTERFACE IMPORTED)
- set_property(TARGET imp::iface APPEND PROPERTY COMPATIBLE_INTERFACE_BOOL SOMEPROP)
- set_property(TARGET imp::iface PROPERTY INTERFACE_SOMEPROP ON)
- set_property(TARGET imp::iface PROPERTY INTERFACE_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/sub.cpp)
- add_library(subiface INTERFACE)
- target_link_libraries(subiface INTERFACE imp::iface)
- set_property(TARGET subiface PROPERTY INTERFACE_SOMEPROP ON)
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