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In that spirit, DESTDIRĪ makefile segment to explain it: install: If, say DESTDIR, was /tmp/destdir, oneĬould see what 'make install' would affect. Using DESTDIR=$HOME will install the filesĪs if $HOME was the root (/). PREFIX is the base directory upon which the real installation isįor example, PREFIX=/usr/local indicates that the final destination

Installed in the root tree if one did not specify DESTDIR. makefiles and Visual Studio) without needing different commands.Īfterwards I use the installed files to create packages or include them in other projects. The good part when using the cmake -build command is that it works for all generators (i.e.For multi-configuration builds, like in Visual Studio, you can also specify the configuration with the optional -config flag. It will execute the install target which also builds all necessary dependent targets if they need to be built and then copies the files into the CMAKE_INSTALL_PREFIX (which in this case is. with the buildsystem configured in the line before. The fourth line builds the project configured in.project-root/build/stage - the path is always considered relative to the current directory if it is not absolute) The third line generates the build system specifying where to put the installation result (which I always place in.The first two lines create the out-of-source build directory.project-root/build> cmake -G "" -DCMAKE_INSTALL_PREFIX=stage. The way I build CMake projects cross platform is the following: /project-root> mkdir build The -config is only used by multi-configuration generators (i.e. You can see it gets quite a bit longer, and isn't directly equivalent anymore, but is closer to best practices in a fairly concise form. mkdir build & cd build & cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr. Also to use more generic CMake syntax abstracting the generator. Best practice would be to use an external build directory, i.e. Some minor additions as comments make it clear that providing a simple equivalence is not enough for some. The type (PATH) is not strictly necessary, but would cause the Qt based cmake-gui to present the directory chooser dialog. Would configure the project, build all targets and install to the /usr prefix.

On the command line, cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr. You can pass in any CMake variable on the command line, or edit cached variables using ccmake/cmake-gui.