Windows developers should choose Visual Stuand in the _Optional platform for generator_ box select 圆4. Start it and click the “Browse Source” button to point to /path/to/Mantid.Ĭlick “Browse Build” and point to the directory you want to build into - it’s recommended that you create a new directory for this (see above), though it can be the same as the source directory.Ĭlick “Configure” down near the bottom of the window.Ī new window will appear asking which ‘Generator’ you want to use: The cmake gui is available from, e.g., the Windows Program menu or the command line executable cmake-gui. Following build commands do not need this. This means that you need to wrap your initial cmake command as scl enable devtoolset-7 "cmake3 /path/to/source". On Red Hat 7 / CentOS7 mantid uses devtoolset-7. Please note that the executable is called cmake3 on Red Hat 7 / CentOS7. Release, Debug) you can run cmake with the -i option or by passing the argument -DCMAKE_BUILD_TYPE=RelWithDebIfo to cmake. cmake -G"NMake Makefiles" /path/to/Mantid. If you want to use a specific generator (run cmake -help for a list of available generators for your platform), use the -G option, e.g. This will generate build files using the default generator for your platform (e.g. Run cmake /path/to/Mantid, or to /path/to/Mantid/Framework if you only want a build of the Framework (typically not recommended, but possible nonetheless). On Windows, you may need to be in a Visual Studio Command Prompt. If wanting an out of source build, create the directory you want to build in and cd into it. Using an extra generator will, for example, configure qtcreator files with ninja as the underlying build tool. On linux, there is a large benefit to selecting the -GNinja generator as it is faster at evaluating what targets to rebuild. It is suggested that one select the generator that is most appropriate for the IDE/toolchain being used. CMake generators ¶ĬMake has a variety of generators available. For Visual Studio & XCode, you can still select the type of build from within the IDE). This separation makes a full clean easier (you just delete everything) and means that you can have different types of build (Release, Debug, different compiler versions, ….) in separate places (N.B. This means that all generated files are placed in a separate directory structure to the source files. Configuring your build ¶ĬMake encourages the use of ‘out of source’ builds. Older versions (<3.2) do not allow this and must fall back to setting the CCACHE_DIR environment variable in your shell profile. On newer versions of ccache run ccache -set-config=cache_dir=PATH_TO_CACHE. If you’re home directory is on a network-mounted drive then the location of this cache be moved to provide the best performance. The default location for the cache directory is $HOME/.ccache on Linux/macOS, and $HOME/AppData/Roaming/ccache on Windows. If you’re build with ccache exhibits warnings that are not usually present then try setting the ccache -set-config=run_second_cpp="true" config option (or set CCACHE_CPP2=yes environment variable on older versions). With your conda environment activated, run ccache -max-size=20G to increase the size of the cache. It is highly recommended that this be used on Linux/macOS systems, and Windows when using a Ninja generator.ĬCache is installed within your conda environment, and CMake is configured to automatically use it when building. Mantid is configured to use the ccache tool if it is available. Follow those instructions and install the Mantid dependencies first.Īlso, if you use the Ninja generator then the executable is called ninja-build on many systems (e.g. The getting started page describes how to set up your environment to build Mantid. Visual Studio, Eclipse, Qt Creator, XCode).įor a “how is it used version” of this guide, look at the scripts used on the builservers for windows or linux/osx. It is used to generate native build files for your platform, which can be Makefiles (for use with make, nmake or jom) for command line builds or project/solution files for an IDE (e.g. Build system customisation using CMake variablesĬMake is the build system for the entirety of Mantid (Framework, MantidQt and MantidWorkbench).
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