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30 lines
1.4 KiB
30 lines
1.4 KiB
NO_SYSTEM_FROM_IMPORTED
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-----------------------
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Do not treat include directories from the interfaces of consumed
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:ref:`imported targets` as system directories.
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When the consumed target's :prop_tgt:`SYSTEM` property is set to true, the
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contents of the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` target property are
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treated as system includes or, on Apple platforms, when the target is a
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framework, it will be treated as system. By default, :prop_tgt:`SYSTEM` is
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true for imported targets and false for other target types. If the
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``NO_SYSTEM_FROM_IMPORTED`` property is set to true on a *consuming* target,
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compilation of sources in that consuming target will not treat the contents of
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the :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` of consumed imported targets as
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system includes, even if that imported target's :prop_tgt:`SYSTEM` property
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is false.
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Directories listed in the :prop_tgt:`INTERFACE_SYSTEM_INCLUDE_DIRECTORIES`
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property of consumed targets are not affected by ``NO_SYSTEM_FROM_IMPORTED``.
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Those directories will always be treated as system include directories by
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consumers.
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This property is initialized by the value of the
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:variable:`CMAKE_NO_SYSTEM_FROM_IMPORTED` variable if it is set when a target
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is created.
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See the :prop_tgt:`EXPORT_NO_SYSTEM` target property to set this behavior
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on the target providing the include directories rather than the target
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consuming them.
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