| CMP0047
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| Use ``QCC`` compiler id for the qcc drivers on QNX.
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| CMake 3.0 and above recognize that the QNX qcc compiler driver is
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| different from the GNU compiler.
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| CMake now prefers to present this to projects by setting the
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| :variable:`CMAKE_<LANG>_COMPILER_ID` variable to ``QCC`` instead
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| of ``GNU``. However, existing projects may assume the compiler id for
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| QNX qcc is just ``GNU`` as it was in CMake versions prior to 3.0.
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| Therefore this policy determines for QNX qcc which compiler id to
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| report in the :variable:`CMAKE_<LANG>_COMPILER_ID` variable after
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| language ``<LANG>`` is enabled by the :command:`project` or
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| :command:`enable_language` command. The policy must be set prior
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| to the invocation of either command.
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| The ``OLD`` behavior for this policy is to use the ``GNU`` compiler id
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| for the qcc and QCC compiler drivers. The ``NEW`` behavior for this policy
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| is to use the ``QCC`` compiler id for those drivers.
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| .. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.0
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| .. |WARNS_OR_DOES_NOT_WARN| replace:: does *not* warn by default
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| .. include:: STANDARD_ADVICE.txt
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| See documentation of the
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| :variable:`CMAKE_POLICY_WARNING_CMP0047 <CMAKE_POLICY_WARNING_CMP<NNNN>>`
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| variable to control the warning.
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| .. include:: DEPRECATED.txt
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