| AUTOMOC |
| ------- |
| |
| Should the target be processed with automoc (for Qt projects). |
| |
| AUTOMOC is a boolean specifying whether CMake will handle the Qt ``moc`` |
| preprocessor automatically, i.e. without having to use the |
| :module:`QT4_WRAP_CPP() <FindQt4>` or QT5_WRAP_CPP() macro. Currently Qt4 and Qt5 are |
| supported. When this property is set ``ON``, CMake will scan the |
| source files at build time and invoke moc accordingly. If an ``#include`` |
| statement like ``#include "moc_foo.cpp"`` is found, the ``Q_OBJECT`` class |
| declaration is expected in the header, and ``moc`` is run on the header |
| file. If an ``#include`` statement like ``#include "foo.moc"`` is found, then |
| a ``Q_OBJECT`` is expected in the current source file and ``moc`` is run on |
| the file itself. Additionally, header files with the same base name (like |
| ``foo.h``) or ``_p`` appended to the base name (like ``foo_p.h``) are parsed |
| for ``Q_OBJECT`` macros, and if found, ``moc`` is also executed on those files. |
| ``AUTOMOC`` checks multiple header alternative extensions, such as |
| ``hpp``, ``hxx`` etc when searching for headers. |
| The resulting moc files, which are not included as shown above in any |
| of the source files are included in a generated |
| ``<targetname>_automoc.cpp`` file, which is compiled as part of the |
| target. This property is initialized by the value of the |
| :variable:`CMAKE_AUTOMOC` variable if it is set when a target is created. |
| |
| Additional command line options for moc can be set via the |
| :prop_tgt:`AUTOMOC_MOC_OPTIONS` property. |
| |
| By enabling the :variable:`CMAKE_AUTOMOC_RELAXED_MODE` variable the |
| rules for searching the files which will be processed by moc can be relaxed. |
| See the documentation for this variable for more details. |
| |
| The global property :prop_gbl:`AUTOGEN_TARGETS_FOLDER` can be used to group the |
| automoc targets together in an IDE, e.g. in MSVS. |
| |
| See the :manual:`cmake-qt(7)` manual for more information on using CMake |
| with Qt. |