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