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CMP0022
-------
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
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 INTERFACE_LINK_LIBRARIES
property will be processed and generated for the IMPORTED target by
default. A new option to the 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
target_link_libraries command will no longer populate the properties
matching LINK_INTERFACE_LIBRARIES(_<CONFIG>)? if this policy is NEW.
The OLD behavior for this policy is to ignore the
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>)?``.
This policy was introduced in CMake version 2.8.12. CMake version
|release| warns when the policy is not set and uses OLD behavior. Use
the cmake_policy command to set it to OLD or NEW explicitly.
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