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62 lines
2.1 KiB
62 lines
2.1 KiB
target_compile_definitions
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--------------------------
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Add compile definitions to a target.
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.. code-block:: cmake
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target_compile_definitions(<target>
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<INTERFACE|PUBLIC|PRIVATE> [items1...]
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[<INTERFACE|PUBLIC|PRIVATE> [items2...] ...])
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Specifies compile definitions to use when compiling a given ``<target>``. The
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named ``<target>`` must have been created by a command such as
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: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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The ``INTERFACE``, ``PUBLIC`` and ``PRIVATE`` keywords are required to
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specify the :ref:`scope <Target Command Scope>` of the following arguments.
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``PRIVATE`` and ``PUBLIC`` items will populate the :prop_tgt:`COMPILE_DEFINITIONS`
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property of ``<target>``. ``PUBLIC`` and ``INTERFACE`` items will populate the
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:prop_tgt:`INTERFACE_COMPILE_DEFINITIONS` property of ``<target>``.
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The following arguments specify compile definitions. Repeated calls for the
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same ``<target>`` append items in the order called.
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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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.. |command_name| replace:: ``target_compile_definitions``
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.. include:: GENEX_NOTE.txt
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Any leading ``-D`` on an item will be removed. Empty items are ignored.
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For example, the following are all equivalent:
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.. code-block:: cmake
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target_compile_definitions(foo PUBLIC FOO)
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target_compile_definitions(foo PUBLIC -DFOO) # -D removed
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target_compile_definitions(foo PUBLIC "" FOO) # "" ignored
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target_compile_definitions(foo PUBLIC -D FOO) # -D becomes "", then ignored
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Definitions may optionally have values:
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.. code-block:: cmake
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target_compile_definitions(foo PUBLIC FOO=1)
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Note that many compilers treat ``-DFOO`` as equivalent to ``-DFOO=1``, but
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other tools may not recognize this in all circumstances (e.g. IntelliSense).
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See Also
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^^^^^^^^
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* :command:`add_compile_definitions`
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* :command:`target_compile_features`
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* :command:`target_compile_options`
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* :command:`target_include_directories`
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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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