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25 lines
1016 B
ReStructuredText
25 lines
1016 B
ReStructuredText
AUTOMOC_COMPILER_PREDEFINES
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---------------------------
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Boolean value used by :prop_tgt:`AUTOMOC` to determine if the
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compiler pre definitions file ``moc_predefs.h`` should be generated.
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CMake generates a ``moc_predefs.h`` file with compiler pre definitions
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from the output of the command defined in
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:variable:`CMAKE_CXX_COMPILER_PREDEFINES_COMMAND <CMAKE_<LANG>_COMPILER_PREDEFINES_COMMAND>`
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when
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- :prop_tgt:`AUTOMOC` is enabled,
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- :prop_tgt:`AUTOMOC_COMPILER_PREDEFINES` is enabled,
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- :variable:`CMAKE_CXX_COMPILER_PREDEFINES_COMMAND <CMAKE_<LANG>_COMPILER_PREDEFINES_COMMAND>` isn't empty and
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- the Qt version is greater or equal 5.8.
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The ``moc_predefs.h`` file, which is generated in :prop_tgt:`AUTOGEN_BUILD_DIR`,
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is passed to ``moc`` as the argument to the ``--include`` option.
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By default :prop_tgt:`AUTOMOC_COMPILER_PREDEFINES` is initialized from
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:variable:`CMAKE_AUTOMOC_COMPILER_PREDEFINES`, which is ON by default.
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See the :manual:`cmake-qt(7)` manual for more information on using CMake
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with Qt.
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