ad3c2c0b03
Every policy's documentation has a paragraph on what version of CMake introduced it, how to set the policy, and whether CMake warns if the policy is not set. The wording of this paragraph has diverged across policies over time. Factor the paragraph out into a standard advice document included by every policy.
31 lines
1.2 KiB
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31 lines
1.2 KiB
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CMP0047
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-------
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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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