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In Qt 5.1, Qt5::Core has a INTERFACE_QT_MAJOR_VERSION property of '5', and since CMake 2.8.11, Qt4::QtCore has an INTERFACE_QT_MAJOR_VERSION of '4'. This was introduced in commit 4aa10cd6 (FindQt4: Set the INTERFACE_QT_MAJOR_VERSION for Qt4::QtCore, 2013-03-16), to produce an error if Qt 4 and Qt 5 are erroneously used by the same target. This can also be used however to determine the Qt major version, and therefore the particular moc executable to use during automoc steps. This means that targets in a single buildsystem can use a selection of Qt 4 and Qt 5, and still take advantage of the CMAKE_AUTOMOC feature without conflicting.
This is CMake, the cross-platform, open-source make system. CMake is distributed under the BSD License, see Copyright.txt. For documentation see the Docs/ directory once you have built CMake or visit http://www.cmake.org. Building CMake ============== Supported Platforms ------------------- MS Windows, Mac OS X, Linux, FreeBSD, Solaris, HP-UX, IRIX, BeOS, QNX Other UNIX-like operating systems may work too out of the box, if not it shouldn't be a major problem to port CMake to this platform. Contact the CMake mailing list in this case: http://www.cmake.org/mailman/listinfo/cmake If you don't have any previous version of CMake already installed -------------------------------------------------------------- * UNIX/Mac OSX/MinGW/MSYS/Cygwin: You need to have a compiler and a make installed. Run the bootstrap script you find the in the source directory of CMake. You can use the --help option to see the supported options. You may want to use the --prefix=<install_prefix> option to specify a custom installation directory for CMake. You can run the bootstrap script from within the CMake source directory or any other build directory of your choice. Once this has finished successfully, run make and make install. So basically it's the same as you may be used to from autotools-based projects: $ ./bootstrap; make; make install * Other Windows: You need to download and install a binary release of CMake in order to build CMake. You can get these releases from http://www.cmake.org/HTML/Download.html . Then proceed with the instructions below. You already have a version of CMake installed --------------------------------------------- You can build CMake as any other project with a CMake-based build system: run the installed CMake on the sources of this CMake with your preferred options and generators. Then build it and install it. For instructions how to do this, see http://www.cmake.org/HTML/RunningCMake.html