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get_source_file_property
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------------------------
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Get a property for a source file.
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.. code-block:: cmake
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get_source_file_property(<variable> <file>
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[DIRECTORY <dir> | TARGET_DIRECTORY <target>]
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<property>)
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Gets a property from a source file. The value of the property is
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stored in the specified ``<variable>``. If the source property is not found,
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the behavior depends on whether it has been defined to be an ``INHERITED``
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property or not (see :command:`define_property`). Non-inherited properties
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will set ``variable`` to ``NOTFOUND``, whereas inherited properties will search
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the relevant parent scope as described for the :command:`define_property`
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command and if still unable to find the property, ``variable`` will be set to
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an empty string.
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By default, the source file's property will be read from the current source
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directory's scope, but this can be overridden with one of the following
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sub-options:
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``DIRECTORY <dir>``
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The source file property will be read from the ``<dir>`` directory's
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scope. CMake must already know about that source directory, either by
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having added it through a call to :command:`add_subdirectory` or ``<dir>``
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being the top level source directory. Relative paths are treated as
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relative to the current source directory.
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``TARGET_DIRECTORY <target>``
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The source file property will be read from the directory scope in which
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``<target>`` was created (``<target>`` must therefore already exist).
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Use :command:`set_source_files_properties` to set property values. Source
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file properties usually control how the file is built. One property that is
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always there is :prop_sf:`LOCATION`.
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See also the more general :command:`get_property` command.
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