CMP0211

.. versionadded:: 4.4

A file may belong to at most one non-HEADERS :ref:file set <file sets> in a target.

In CMake 4.3 and below, it was possible to specify the same file in multiple file sets in a target. In CMake 4.4 and above, a file may belong to at most one file set in a target except for the HEADERS file set type. This policy provides compatibility for projects that have not been updated accordingly.

The OLD behavior for this policy is to accept the same file in multiple file sets in a target. The NEW behavior for this policy is to accept a given file in at most one file set in a target except for the HEADERS file set type.

.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 4.4 .. |WARNS_OR_DOES_NOT_WARN| replace:: warns when a file is part of multiple file sets in a target .. include:: include/STANDARD_ADVICE.rst

.. include:: include/DEPRECATED.rst