If you were producing a package and installing that package on a different machine, it is this path that would be used to create the package contents. That said, the CMAKE_INSTALL_PREFIX is indeed set at configure time, but that's just a default chosen by GNUInstallDirs or cmake itself. When you run that cli command, the configuration, generation and building phases are already done. On UNIX one can use the DESTDIR mechanism in order to relocate the whole installation. This variable defaults to /usr/local on UNIX and c:/Program Files/${PROJECT_NAME} on Windows. Unlike Autotools, CMake can generate build scripts for builders other than Make: Ninja, Visual Studio, etc. cd %project% # Generate a Project Buildsystem cmake -G "Visual Studio 16 2019" ^ -S . But I need to install it not in / but in /home/paul/work (my work dir) I have tried: make install DESTDIR=/home/paul/work make install prefix=/home/paul/work make install PREFIX=/home/paul/work make install ROOT=/home/paul/work If make install is invoked or INSTALL is built, this directory is prepended onto all install directories. The actual install path can be specified, for example, in the cmake --install cli command. In general, you want to be setting CMAKE_INSTALL_PREFIX and it would make sense for the project to provide a value for that (but still overridable by the user if they wanted to). --config Release --prefix ..\release If I follow the steps, it can change the preifx path in Generate a Project step If your workflow includes project installation, you may want to use the CMake install command that generates installation rules.. CMake install invokes building targets, thus you don't need to call the Build action separately.. Configure and run installation. If make install is invoked or INSTALL is built, this directory is prepended onto all install directories. Install directory used by install().. I have already built the package, no problem. Options common to multiple signatures are covered here but they are valid only for signatures that specify . DESTDIR means DESTination DIRectory. CMAKE_INSTALL_PREFIX Install directory used by install(). Install CMake and Ninja To install CMake and Ninja, us CMAKE_INSTALL_PREFIXexport CMAKE_INSTALL_PREFIX = $ KDEDIRsource CMake. No matter which you use, you'll need to install CMake and Ninja on your development machine, if you don't already have them. The prefix is the toplevel directory in which to install, with bits and pieces going to /etc (config files), or /usr/bin or /usr/local/bin, etc. Place the install commands into your CMakeLists.txt files.. Set up the installation paths via the [DESTINATION dir] field . You can edit the top-level Makefile to change the PREFIX, LIBDIR, BINDIR, etc, or just reconfigure with the appropriate directories specified in the ./configure command. There are multiple signatures for this command. If make install is invoked or INSTALL is built, this directory is prepended onto all install directories. CMAKE_INSTALL_PREFIX Install directory used by install(). This variable defaults to /usr/local on UNIX and c:/Program Files on Windows. means that the prefix is baked in at configure time. I am trying to build a glibc slackware tgz. Designed by Kitware, CMake is the most popular build system for new C, C++, and Fortran projects, and many older projects are switching to it as well. CMake . It is commonly used by . But it doesnt change the install path. Changed in version 3.22: The environment variable CMAKE_INSTALL_MODE can override the default copying behavior of install (). Like Autotools, CMake is a widely-used build-script generator. Instead, the INSTALL_BIN_DIR should be relative and let the install script add $ {CMAKE_INSTALL_PREFIX} as needed. But do remember to place it BEFORE PROJECT(< project_name>) command, otherwise it will not work! This variable defaults to /usr/local on UNIX and c:/Program Files/${PROJECT_NAME} on Windows. ^ -B .\build # Build a Project cmake --build . Incidentally, it is also bad because those values are only the defaults. My first week of using cmake - after some years of GNU autotools - so I am still learning (better then writing m4 macros), but I think modifying CMAKE_INSTALL_PREFIX after setting project is the better place.. CMakeLists.txt On UNIX one can use the DESTDIR mechanism . Some of them define installation options for files and targets. See CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT for how a project might choose its own default. CMAKE_INSTALL_PREFIX. Right now, the install path is seen as absolute and therefore not eligible for replacement at install time. First you set the install prefix to workspae instead of workspace, and then nothing is installed until you explicitely call "make install" or "ninja install". --config Release # Install a Project cmake --install . Home Categories The difference is subtle, but important. CMake install. hi. See CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT for how a project might choose its own default.. On UNIX one can use the DESTDIR .
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