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28 lines
1.3 KiB
ReStructuredText
28 lines
1.3 KiB
ReStructuredText
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CMP0027
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-------
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Conditionally linked imported targets with missing include directories.
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CMake 2.8.11 introduced introduced the concept of
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:prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES`, and a check at cmake time that the
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entries in the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` of an ``IMPORTED``
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target actually exist. CMake 2.8.11 also introduced generator expression
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support in the :command:`target_link_libraries` command. However, if an
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imported target is linked as a result of a generator expression evaluation, the
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entries in the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` of that target were not
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checked for existence as they should be.
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The ``OLD`` behavior of this policy is to report a warning if an entry in
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the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` of a generator-expression
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conditionally linked ``IMPORTED`` target does not exist.
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The ``NEW`` behavior of this policy is to report an error if an entry in
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the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` of a generator-expression
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conditionally linked ``IMPORTED`` target does not exist.
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This policy was introduced in CMake version 3.0. CMake version
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|release| warns when the policy is not set and uses ``OLD`` behavior. Use
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the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` explicitly.
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.. include:: DEPRECATED.txt
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