38 lines
1.9 KiB
ReStructuredText
38 lines
1.9 KiB
ReStructuredText
AUTOMOC
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-------
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Should the target be processed with automoc (for Qt projects).
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AUTOMOC is a boolean specifying whether CMake will handle the Qt ``moc``
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preprocessor automatically, i.e. without having to use the
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:module:`QT4_WRAP_CPP() <FindQt4>` or QT5_WRAP_CPP() macro. Currently Qt4 and Qt5 are
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supported. When this property is set ``ON``, CMake will scan the
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source files at build time and invoke moc accordingly. If an ``#include``
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statement like ``#include "moc_foo.cpp"`` is found, the ``Q_OBJECT`` class
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declaration is expected in the header, and ``moc`` is run on the header
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file. If an ``#include`` statement like ``#include "foo.moc"`` is found, then
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a ``Q_OBJECT`` is expected in the current source file and ``moc`` is run on
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the file itself. Additionally, header files with the same base name (like
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``foo.h``) or ``_p`` appended to the base name (like ``foo_p.h``) are parsed
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for ``Q_OBJECT`` macros, and if found, ``moc`` is also executed on those files.
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``AUTOMOC`` checks multiple header alternative extensions, such as
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``hpp``, ``hxx`` etc when searching for headers.
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The resulting moc files, which are not included as shown above in any
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of the source files are included in a generated
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``<targetname>_automoc.cpp`` file, which is compiled as part of the
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target. This property is initialized by the value of the
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:variable:`CMAKE_AUTOMOC` variable if it is set when a target is created.
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Additional command line options for moc can be set via the
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:prop_tgt:`AUTOMOC_MOC_OPTIONS` property.
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By enabling the :variable:`CMAKE_AUTOMOC_RELAXED_MODE` variable the
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rules for searching the files which will be processed by moc can be relaxed.
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See the documentation for this variable for more details.
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The global property :prop_gbl:`AUTOGEN_TARGETS_FOLDER` can be used to group the
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automoc targets together in an IDE, e.g. in MSVS.
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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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