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Help: Revise and format policy CMP0025 and CMP0047 docs 

Add inline reST markup as appropriate.  Word CMP0047 docs more like
those of CMP0025.  State explicitly that the policies must be set
before the project or enable_language command calls.
This commit is contained in:
Brad King 2014-04-02 12:51:47 -04:00
parent a48de7d850
commit d339653eaf
2 changed files with 31 additions and 20 deletions
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26
Help/policy/CMP0025.rst
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@ -1,21 +1,23 @@
CMP0025 CMP0025
------- -------
Compiler id for Apple Clang is now AppleClang. Compiler id for Apple Clang is now ``AppleClang``.
CMake >= 3.0 recognize that Apple Clang is a different compiler CMake 3.0 and above recognize that Apple Clang is a different compiler
than upstream Clang and that they have different version numbers. than upstream Clang and that they have different version numbers.
CMake now prefers to present this to projects by setting CMake now prefers to present this to projects by setting the
CMAKE_<LANG>_COMPILER_ID to "AppleClang" instead of "Clang". However, :variable:`CMAKE_<LANG>_COMPILER_ID` variable to ``AppleClang`` instead
existing projects may assume the compiler id for Apple Clang is just of ``Clang``. However, existing projects may assume the compiler id for
"Clang" as it was in CMake < 3.0. Therefore this policy determines Apple Clang is just ``Clang`` as it was in CMake versions prior to 3.0.
for Apple Clang which compiler id to report in Therefore this policy determines for Apple Clang which compiler id to
CMAKE_<LANG>_COMPILER_ID after <LANG> is enabled by the project() or report in the :variable:`CMAKE_<LANG>_COMPILER_ID` variable after
enable_language() command. 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 The OLD behavior for this policy is to use compiler id ``Clang``. The
NEW behavior for this policy is to use compiler id "AppleClang". NEW behavior for this policy is to use compiler id ``AppleClang``.
This policy was introduced in CMake version 3.0. CMake version This policy was introduced in CMake version 3.0. CMake version
|release| warns when the policy is not set and uses OLD behavior. Use |release| warns when the policy is not set and uses OLD behavior. Use
the cmake_policy command to set it to OLD or NEW explicitly. the :command:`cmake_policy` command to set it to OLD or NEW explicitly.

25
Help/policy/CMP0047.rst
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@ -1,16 +1,25 @@
CMP0047 CMP0047
------- -------
Use QCC compiler id for the qcc drivers on QNX. Use ``QCC`` compiler id for the qcc drivers on QNX.
CMake 2.8.12 and lower assigned the QNX qcc and QCC compiler drivers the "GNU" CMake 3.0 and above recognize that the QNX qcc compiler driver is
compiler id. different from the GNU compiler.
CMake now prefers to present this to projects by setting the
:variable:`CMAKE_<LANG>_COMPILER_ID` variable to ``QCC`` instead
of ``GNU``. However, existing projects may assume the compiler id for
QNX qcc is just ``GNU`` as it was in CMake versions prior to 3.0.
Therefore this policy determines for QNX qcc 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 the "GNU" compiler id for the qcc The OLD behavior for this policy is to use the ``GNU`` compiler id
and QCC compiler drivers. The NEW behavior for this policy is to use the "QCC" for the qcc and QCC compiler drivers. The NEW behavior for this policy
compiler id for those drivers. is to use the ``QCC`` compiler id for those drivers.
This policy was introduced in CMake version 3.0. This policy was introduced in CMake version 3.0.
CMake version |release| warns when the policy is not set and uses CMake version |release| warns when the policy is not set and uses
OLD behavior. Use the cmake_policy command to set it to OLD or OLD behavior. Use the :command:`cmake_policy` command to set it to
NEW explicitly. OLD or NEW explicitly.