835f34949e
Re-organize the section to explicitly describe target-specific commands, build properties, and usage requirement properties. Add builtin transitive properties that have been created since the document was first written.
88 lines
3.6 KiB
ReStructuredText
88 lines
3.6 KiB
ReStructuredText
target_include_directories
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--------------------------
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Add include directories to a target.
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.. code-block:: cmake
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target_include_directories(<target> [SYSTEM] [AFTER|BEFORE]
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<INTERFACE|PUBLIC|PRIVATE> [items1...]
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[<INTERFACE|PUBLIC|PRIVATE> [items2...] ...])
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Specifies 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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:ref:`ALIAS target <Alias Targets>`.
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By using ``AFTER`` or ``BEFORE`` explicitly, you can select between appending
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and prepending, independent of the default.
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The ``INTERFACE``, ``PUBLIC`` and ``PRIVATE`` keywords are required to specify
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the :ref:`scope <Target Command Scope>` of the following arguments.
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``PRIVATE`` and ``PUBLIC`` items will populate the :prop_tgt:`INCLUDE_DIRECTORIES`
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property of ``<target>``. ``PUBLIC`` and ``INTERFACE`` items will populate the
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:prop_tgt:`INTERFACE_INCLUDE_DIRECTORIES` property of ``<target>``.
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The following arguments specify include directories.
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.. versionadded:: 3.11
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Allow setting ``INTERFACE`` items on :ref:`IMPORTED targets <Imported Targets>`.
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Repeated calls for the same ``<target>`` append items in the order called.
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If ``SYSTEM`` is specified, the compiler will be told the directories
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are meant as system include directories on some platforms. This may
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have effects such as suppressing warnings or skipping the contained
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headers in dependency calculations (see compiler documentation).
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Additionally, system include directories are searched after normal
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include directories regardless of the order specified.
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If ``SYSTEM`` 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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.. |command_name| replace:: ``target_include_directories``
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.. include:: GENEX_NOTE.txt
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Specified include directories may be absolute paths or relative paths.
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A relative path will be interpreted as relative to the current source
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directory (i.e. :variable:`CMAKE_CURRENT_SOURCE_DIR`) and converted to an
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absolute path before storing it in the associated target property.
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If the path starts with a generator expression, it will always be assumed
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to be an absolute path (with one exception noted below) and will be used
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unmodified.
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Include directories usage requirements commonly differ between the build-tree
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and the install-tree. The :genex:`BUILD_INTERFACE` and
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:genex:`INSTALL_INTERFACE` generator expressions can be used to describe
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separate usage requirements based on the usage location. Relative paths
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are allowed within the :genex:`INSTALL_INTERFACE` expression and are
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interpreted as relative to the installation prefix. Relative paths should not
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be used in :genex:`BUILD_INTERFACE` expressions because they will not be
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converted to absolute. 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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See Also
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^^^^^^^^
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* :command:`include_directories`
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* :command:`target_compile_definitions`
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* :command:`target_compile_features`
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* :command:`target_compile_options`
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* :command:`target_link_libraries`
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* :command:`target_link_directories`
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* :command:`target_link_options`
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* :command:`target_precompile_headers`
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* :command:`target_sources`
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