9bc8ce6608
If one of the interface link libraries of a target is "$<LINK_ONLY:$<BUILD_LOCAL_INTERFACE:Foo>>" this will be exported by cmake as "$<LINK_ONLY:>" in the exported INTERFACE_LINK_LIBRARIES property. When walking the dependent libraries of a target using __qt_internal_walk_libs(), this value will become empty after unwrapping the LINK_ONLY genex. In such a case, we should skip further processing of the library. Otherwise in some weird unknown conditions, CMake might consider the empty name to be a valid target, and cause errors when trying to read properties from it. Amends ad7b94e163ac5c3959a7e38d7f48536be288a187 Pick-to: 6.9 Fixes: QTBUG-136039 Change-Id: I143dec697e10530379486462697cd299940ee463 Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>