63 lines
2.7 KiB
ReStructuredText
63 lines
2.7 KiB
ReStructuredText
target_include_directories
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--------------------------
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Add include directories to a target.
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::
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target_include_directories(<target> [SYSTEM] [BEFORE]
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<INTERFACE|PUBLIC|PRIVATE> [items1...]
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[<INTERFACE|PUBLIC|PRIVATE> [items2...] ...])
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Specify include directories to use when compiling a given target.
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The named ``<target>`` must have been created by a command such
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as :command:`add_executable` or :command:`add_library` and must not be an
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:prop_tgt:`IMPORTED` target.
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If ``BEFORE`` is specified, the content will be prepended to the property
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instead of being appended.
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The ``INTERFACE``, ``PUBLIC`` and ``PRIVATE`` keywords are required to specify
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the scope of the following arguments. ``PRIVATE`` and ``PUBLIC`` items will
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populate the :prop_tgt:`INCLUDE_DIRECTORIES` property of ``<target>``.
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``PUBLIC`` and ``INTERFACE`` items will populate the
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:prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES`
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property of ``<target>``. The following arguments specify include
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directories.
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Specified include directories may be absolute paths or relative paths.
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Repeated calls for the same <target> append items in the order called. If
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``SYSTEM`` is specified, the compiler will be told the
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directories are meant as system include directories on some platforms
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(signalling this setting might achieve effects such as the compiler
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skipping warnings, or these fixed-install system files not being
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considered in dependency calculations - see compiler docs). If ``SYSTEM``
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is used together with ``PUBLIC`` or ``INTERFACE``, the
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:prop_tgt:`INTERFACE_SYSTEM_INCLUDE_DIRECTORIES` target property will be
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populated with the specified directories.
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Arguments to ``target_include_directories`` may use "generator expressions"
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with the syntax ``$<...>``. See the :manual:`cmake-generator-expressions(7)`
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manual for available expressions. See the :manual:`cmake-buildsystem(7)`
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manual for more on defining buildsystem properties.
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Include directories usage requirements commonly differ between the build-tree
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and the install-tree. The ``BUILD_INTERFACE`` and ``INSTALL_INTERFACE``
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generator expressions can be used to describe separate usage requirements
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based on the usage location. Relative paths are allowed within the
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``INSTALL_INTERFACE`` expression and are interpreted relative to the
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installation prefix. For example:
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.. code-block:: cmake
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target_include_directories(mylib PUBLIC
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$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include/mylib>
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$<INSTALL_INTERFACE:include/mylib> # <prefix>/include/mylib
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)
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Creating Relocatable Packages
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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.. |INTERFACE_PROPERTY_LINK| replace:: :prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES`
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.. include:: /include/INTERFACE_INCLUDE_DIRECTORIES_WARNING.txt
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