| CMP0022 | |
| ------- | |
| :prop_tgt:`INTERFACE_LINK_LIBRARIES` defines the link interface. | |
| CMake 2.8.11 constructed the 'link interface' of a target from | |
| properties matching ``(IMPORTED_)?LINK_INTERFACE_LIBRARIES(_<CONFIG>)?``. | |
| The modern way to specify config-sensitive content is to use generator | |
| expressions and the ``IMPORTED_`` prefix makes uniform processing of the | |
| link interface with generator expressions impossible. The | |
| :prop_tgt:`INTERFACE_LINK_LIBRARIES` target property was introduced as a | |
| replacement in CMake 2.8.12. This new property is named consistently | |
| with the ``INTERFACE_COMPILE_DEFINITIONS``, ``INTERFACE_INCLUDE_DIRECTORIES`` | |
| and ``INTERFACE_COMPILE_OPTIONS`` properties. For in-build targets, CMake | |
| will use the INTERFACE_LINK_LIBRARIES property as the source of the | |
| link interface only if policy ``CMP0022`` is ``NEW``. When exporting a target | |
| which has this policy set to ``NEW``, only the :prop_tgt:`INTERFACE_LINK_LIBRARIES` | |
| property will be processed and generated for the ``IMPORTED`` target by | |
| default. A new option to the :command:`install(EXPORT)` and export commands | |
| allows export of the old-style properties for compatibility with | |
| downstream users of CMake versions older than 2.8.12. The | |
| :command:`target_link_libraries` command will no longer populate the properties | |
| matching ``LINK_INTERFACE_LIBRARIES(_<CONFIG>)?`` if this policy is ``NEW``. | |
| Warning-free future-compatible code which works with CMake 2.8.7 onwards | |
| can be written by using the ``LINK_PRIVATE`` and ``LINK_PUBLIC`` keywords | |
| of :command:`target_link_libraries`. | |
| The ``OLD`` behavior for this policy is to ignore the | |
| :prop_tgt:`INTERFACE_LINK_LIBRARIES` property for in-build targets. | |
| The ``NEW`` behavior for this policy is to use the ``INTERFACE_LINK_LIBRARIES`` | |
| property for in-build targets, and ignore the old properties matching | |
| ``(IMPORTED_)?LINK_INTERFACE_LIBRARIES(_<CONFIG>)?``. | |
| .. |INTRODUCED_IN_CMAKE_VERSION| replace:: 2.8.12 | |
| .. |WARNS_OR_DOES_NOT_WARN| replace:: warns | |
| .. include:: STANDARD_ADVICE.txt | |
| .. include:: DEPRECATED.txt | |