The build system used qt_internal_add_genex_properties_export to export properties containing feature values like QT_ENABLED_PUBLIC_FEATURES for interface library targets. This worked fine for single config builds, but fails when configuring standalone tests with a multi-config build. The problem is that in multi-config builds, the exported values are wrapped with genexes, which breaks feature checks of the form if(QT_FEATURE_foo). Rename the qt_internal_add_genex_properties_export function to qt_internal_add_custom_properties_to_export and extend it to support two kinds of properties: - Properties that may contain genexes and need special handling in multi-config builds (e.g. paths) - Properties that will never contain genexes (e.g. feature values) Use the latter kind for exporting the feature properties. Amends e6984bc55b84278c1eb8813a9bfb5e59fe3781be Amends d51d7d4d5c87c37ac0b35e15857761e5e5815cc7 Amends 461020a86aa5822325edba9ec565db39e5df8092 Amends b56dc55c3a5c4164ad84fd61c44638a3cb196978 Pick-to: 6.8 6.10 Task-number: QTBUG-139986 Change-Id: I5017f9775268e939cf06f05a957a91883e2a5919 Reviewed-by: Alexey Edelev <semlanik@gmail.com>