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set_source_files_properties
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---------------------------
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Source files can have properties that affect how they are built.
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.. code-block:: cmake
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set_source_files_properties(<files> ...
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[DIRECTORY <dirs> ...]
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[TARGET_DIRECTORY <targets> ...]
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PROPERTIES <prop1> <value1>
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[<prop2> <value2>] ...)
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Sets properties associated with source files using a key/value paired
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list.
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By default, source file properties are only visible to targets added in the
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same directory (``CMakeLists.txt``). Visibility can be set in other directory
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scopes using one or both of the following options:
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``DIRECTORY <dirs>...``
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The source file properties will be set in each of the ``<dirs>``
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directories' scopes. CMake must already know about each of these
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source directories, either by having added them through a call to
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:command:`add_subdirectory` or it being the top level source directory.
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Relative paths are treated as relative to the current source directory.
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``TARGET_DIRECTORY <targets>...``
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The source file properties will be set in each of the directory scopes
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where any of the specified ``<targets>`` were created (the ``<targets>``
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must therefore already exist).
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Use :command:`get_source_file_property` to get property values.
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See also the :command:`set_property(SOURCE)` command.
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See :ref:`Source File Properties` for the list of properties known
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to CMake.
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