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Diffstat (limited to 'share/cmake-3.18/Help/policy/CMP0020.rst')
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diff --git a/share/cmake-3.18/Help/policy/CMP0020.rst b/share/cmake-3.18/Help/policy/CMP0020.rst new file mode 100644 index 0000000..6d27684 --- /dev/null +++ b/share/cmake-3.18/Help/policy/CMP0020.rst @@ -0,0 +1,27 @@ +CMP0020 +------- + +Automatically link Qt executables to ``qtmain`` target on Windows. + +CMake 2.8.10 and lower required users of Qt to always specify a link +dependency to the ``qtmain.lib`` static library manually on Windows. +CMake 2.8.11 gained the ability to evaluate generator expressions +while determining the link dependencies from ``IMPORTED`` targets. This +allows CMake itself to automatically link executables which link to Qt +to the ``qtmain.lib`` library when using ``IMPORTED`` Qt targets. For +applications already linking to ``qtmain.lib``, this should have little +impact. For applications which supply their own alternative WinMain +implementation and for applications which use the QAxServer library, +this automatic linking will need to be disabled as per the +documentation. + +The ``OLD`` behavior for this policy is not to link executables to +``qtmain.lib`` automatically when they link to the QtCore ``IMPORTED`` target. +The ``NEW`` behavior for this policy is to link executables to ``qtmain.lib`` +automatically when they link to QtCore ``IMPORTED`` target. + +This policy was introduced in CMake version 2.8.11. CMake version +|release| warns when the policy is not set and uses ``OLD`` behavior. Use +the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` explicitly. + +.. include:: DEPRECATED.txt |