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CMP0025
-------
Compiler id for Apple Clang is now ``AppleClang``.
CMake 3.0 and above recognize that Apple Clang is a different compiler
than upstream Clang and that they have different version numbers.
CMake now prefers to present this to projects by setting the
:variable:`CMAKE_<LANG>_COMPILER_ID` variable to ``AppleClang`` instead
of ``Clang``. However, existing projects may assume the compiler id for
Apple Clang is just ``Clang`` as it was in CMake versions prior to 3.0.
Therefore this policy determines for Apple Clang which compiler id to
report in the :variable:`CMAKE_<LANG>_COMPILER_ID` variable after
language ``<LANG>`` is enabled by the :command:`project` or
:command:`enable_language` command. The policy must be set prior
to the invocation of either command.
The ``OLD`` behavior for this policy is to use compiler id ``Clang``. The
``NEW`` behavior for this policy is to use compiler id ``AppleClang``.
.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.0
.. |WARNS_OR_DOES_NOT_WARN| replace:: does *not* warn by default
.. include:: STANDARD_ADVICE.txt
See documentation of the
:variable:`CMAKE_POLICY_WARNING_CMP0025 <CMAKE_POLICY_WARNING_CMP<NNNN>>`
variable to control the warning.
.. include:: DEPRECATED.txt
|
