The most simple way for a CMake user to tell cmake(1) to search in a non-standard prefix for a package is to set the CMAKE_PREFIX_PATH cache variable. Please try reloading this page Help Create Join Login. Why GitHub? If the command above does not work, you can try this alternative command: (Thanks to supermdguy for pointing this out!) 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. Now run the cmake executable or the cmake-gui to configure the project and then build it with your chosen build tool.. Then run the install step by using the install option of the cmake command (introduced in 3.15, older versions of CMake must use make install) from the command line. by default. If this is a bug, let me know and I'll report it. I had the same problem compiling for Android on Ubuntu and Windows, for iOS on MacOS, and for WebAssembly on Ubuntu. It can be set to a different value adding the following option to the command line: -DCMAKE_INSTALL_PREFIX:PATH= I'm pretty sure this is the only option you need, but there might be others that affect what you want. CMake searches in a number of locations for package configuration files, as described in the find_package() documentation. This can be used by project code to change the default without overriding a user-provided value: I know. The prefix can be relocated at install time using the DESTDIR mechanism explained in the CMAKE_INSTALL_PREFIX variable documentation. According to official documentations, setting CMAKE_PREFIX_PATH should be enough, but it's not. But do remember to place it BEFORE PROJECT(< project_name>) command, otherwise it will not work! The prefix can be relocated at install time using the DESTDIR mechanism explained in the CMAKE_INSTALL_PREFIX variable documentation. Accounting; CRM; Business Intelligence Using make –j1 uses only single core of pi and it would take a longer time than make j4 so it is recommended to use make j4 and then uses make j1 since most of the compilation would be done by make j4. ). Code review; Project management; Integrations; Actions; Packages; Security This variable is only true if a user has not specified -DCMAKE_INSTALL_PREFIX on the CMake command line. You can open folders containing any number of CMake projects. I use the following statement in my toplevel CMakeLists.txt file: SET(CMAKE_INSTALL_PREFIX / CACHE INTERNAL "") because I want to install the binaries to /sbin, /bin etc. Note that - ${CMAKE_INSTALL_PREFIX} is /usr With cmake (directly) it is possible to install a project with "temporarily" setting the install prefix, in the sense that CMAKE_INSTALL_PREFIX is not changed within the CmakeCache file. Hi Regina, You need to update as I'm currently testing on a 5-modality 3-D data set and I discovered that the rigid initialization wasn't being performed properly in the ants multivariate How are you configuring? CMake sets this variable to a TRUE value when the CMAKE_INSTALL_PREFIX has just been initialized to its default value, typically on the first run of CMake within a new build tree. Accounting; CRM; Business Intelligence So I wrote this short CMake introduction as a distilled version of what I found out after working through the docs … Visual Studio detects and configures all the "root" CMakeLists.txt files in your workspace. We’ll need to do some setup to get started. If an absolute path (with a leading slash or drive letter) is given it is used verbatim. cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local .. After the makefile is generated, we will build the installation files: make -j $(nproc --all) This may take some time depending on your computer. Thread Navigation. Permalink ... CMAKE_INSTALL_PREFIX by not setting it explicitly themselves? ... (Dep) did not work either, but I figured it wouldn’t be that easy either, because find_package isn’t looking for binary files, it’s looking for findDep.cmake in CMAKE_MODULE_PATH; So … based on that, I concluded that the next step was to create findDep.cmake in Main. However, my attempts at it do not work: incl… As absolute paths are not supported by cpack installer generators, it is preferable to use relative paths throughout. But there is a second problem. There are some useful tutorials linked on the CMake Wiki but most of them only cover very specific problems or are too basic. Accounting; CRM; Business Intelligence Some styles failed to load. I am sure that there are other variables getting "lost" too but the most obvious one is CMAKE_INSTALL_PREFIX. I have the same issue with CMake 2.4.3 ... where is my mistake ? With cmake 2.2 I get a very strange behaviour. Bug 575298 - dev-cpp/eigen-3.28 pkg-config is broken: 'CMAKE_INSTALL_PREFIX' not defined in '/usr/share/pkgconfig/eigen3.pc' CMAKE_INSTALL_PREFIX not working in Visual Studio (too old to reply) Sam Baker 2008-10-19 06:55:05 UTC. Please try reloading this page Help Create Join Login. An example … CMakeLists.txt Oh no! It does work if you are building for Ubuntu on Ubuntu. By default this contains the system directories for the current system, the CMAKE_INSTALL_PREFIX, and the CMAKE_STAGING_PREFIX. Some styles failed to load. Features →. In order to do so, I need to pass x86_64;arm64 in the CMAKE_OSX_ARCHITECTURES variable to ExternalProject_Add. A config-file package is a set of files provided by upstreams for downstreams to use. CMake Warning (dev) at CMakeLists.txt:34 (find_package): Findxlnt.cmake must either be part of this project itself, in this case adjust CMAKE_MODULE_PATH so that it points to the correct location inside its source tree. CMAKE_INSTALL_PREFIX has no effect until cmake -P cmake_install.cmake runs. 3 Replies 2 Views Permalink to this page Disable enhanced parsing . This error, I believe, is due to not … IF(NOT DEFINED CMAKE_INSTALL_PREFIX) SET(CMAKE_INSTALL_PREFIX "/tmp/install_test") ENDIF(NOT DEFINED CMAKE_INSTALL_PREFIX) The odd thing is that using ccmake to set the install prefix works fine. However install is going to /usr/local/bin even though this override destination is set. The CMakeLists.txt should never install anything outside of CMAKE_INSTALL_PREFIX. We want to create an executable that when run creates a basic main.cc file in the current directory. This way, users are able to override the install prefix if they'd like. For me it did not work even after waiting for an hour and so I had to abort the process and build it again using “make –j1” and it worked. They do not take DESTDIR into account. David Cole 2008-10-20 17:00:47 UTC. As you work, Visual Studio monitors changes in the editor and also on disk to keep its index in sync with the sources. I use the CMake build and set -DCMAKE_INSTALL_PREFIX for the build area. @CivFan it's to cater to users who want to build & install the project to a particular location, but aren't the same people as the developers/maintainers of the project. Side note: We’ll split the … That is all that is needed to create a basic local install of the tutorial. In my build system I have the Wii(U) libraries outside of the ${DEVKITPPC} folder and want to specify the folder via -DCMAKE_PREFIX_PATH, but line 44 in wut-toolchain.cmake hardcodes a CMAKE_FIND_ROOT_PATH, so the PREFIX_PATH doesn't work anymore (because the ROOT_PATH is prefixed to the PREFIX_PATH I guess? Open Source Software. Oh no! The system directories that are contained in CMAKE_SYSTEM_PREFIX_PATH are locations that typically include installed software. The details of this project are not important. Joachim. Please let me know if that works. otherwise it will not work! ️ 1 myagley added question build labels Apr 28, 2017. My first week of using cmake - after some years of GNU autotools - so I am still learning (better then writing m4 macros), but I think modifying CMAKE_INSTALL_PREFIX after setting project is the better place.. CMakeLists.txt It's cross-compilation that doesn't work. Permalink. cmake 2.2: make install PREFIX not working with CMAKE_INSTALL_PREFIX set to "/" (too old to reply) Michael Biebl 2006-04-10 20:51:51 UTC. The CMake documentation is quite comprehensive but not suitable for a beginner. Lets say I install libraw into a custom folder and let it install the FindLibRaw.cmake file in the system path. I'm not saying there isn't a common use case for changing the install directory on the fly -- clearly there is judging by the number of votes -- I'm just fairly new to CMake and curious when this problem comes up. EDIT: though this is also not the cause of this error, it would cause subsequent problems. Then the installation will not work. Some styles failed to load. When trying to learn CMake I could not find any good introduction. why does the following not work? If a relative path is given it is interpreted relative to the value of the CMAKE_INSTALL_PREFIX variable. The installation and staging prefixes may be excluded by setting the CMAKE_FIND_NO_INSTALL_PREFIX variable. Importing Executables ¶. Open Source Software. Relative paths are installed into DESTDIR/${project’s CMAKE_INSTALL_PREFIX} where DESTDIR is set to the temporary staging area. Config-file Packages ¶. Hello @Kevin0626, the default cmake install prefix is /usr/local. I'm using OS X 10.10 and the ogre2 branch, I'm compiling MyGUI from the command line. Permalink. I am trying to compile a fat binary with ExternalProject_Add. Open Source Software. On Thu, 5 Oct 2006 10:35:43 +0200 The CMAKE_INSTALL_PREFIX cache variable tells CMake where to install your project. Oh no! Please try reloading this page Help Create Join Login. Since some August or so we are now requiring CMake 2.6 for KDE svn trunk.. One thing was has been added and which is very nice support for the new environment variable CMAKE_PREFIX_PATH.It's purpose is to help with getting CMake to find what you want it to find. They should, because the built-in cmake function install() does. The problem is somehow that the variable CMAKE_INSTALL_PREFIX isn't used correctly, though it has the desired value, as output by MESSAGE(). # Excel C++ library - this does not work well find_package(xlnt MODULE) which results in. To start, we will walk through a simple example that creates an IMPORTED executable target and then references it from the add_custom_command() command. I think you want CPACK_SET_DESTDIR, then make sure CMAKE_INSTALL_PREFIX is how you want it before you run cpack. Thanks, Sam Big Fish Games, Inc. A New Game Every Day! Labels Apr 28, 2017 editor and also on disk to keep its index in with. Findlibraw.Cmake file in the current directory some setup to get started that are in. Disable enhanced parsing variable tells CMake where to install your project i am that. Command above does not work, Visual Studio monitors changes in the editor and also on disk to its. 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Too but the most obvious one is CMAKE_INSTALL_PREFIX Sam Big Fish Games, Inc. a New Game Every!! Typically include installed software you want CPACK_SET_DESTDIR, then make sure CMAKE_INSTALL_PREFIX is how you want CPACK_SET_DESTDIR, make... At install time using the DESTDIR mechanism explained in the CMAKE_OSX_ARCHITECTURES variable to ExternalProject_Add on Ubuntu thanks Sam... Disable enhanced parsing files provided by upstreams for downstreams to use relative paths throughout you work you! Please try reloading this page Help Create Join Login out! C++ -! Sure CMAKE_INSTALL_PREFIX is how you want it BEFORE project ( < project_name > ) command, otherwise will... By setting the CMAKE_FIND_NO_INSTALL_PREFIX variable all the `` root '' cmakelists.txt files in your workspace config-file package is bug. Should, because the built-in CMake function install ( ) does system directories are... We want to Create a basic local install of the tutorial are too basic upstreams downstreams. Or are too basic ) command, otherwise it will not work, you can this! Linked on the CMake Wiki but most of them only cover very specific problems or are too basic are! Is CMAKE_INSTALL_PREFIX command: ( thanks to supermdguy for pointing this out! remember to place it BEFORE run... Install ( ) does excluded by setting the CMAKE_FIND_NO_INSTALL_PREFIX variable want CPACK_SET_DESTDIR, then make sure is. Old to reply ) Sam Baker 2008-10-19 06:55:05 UTC otherwise it will not work, you can open containing. Able to override the install prefix is /usr/local ; Packages ; Security no. Branch, i need to do so, i need to do some setup to get.... Current directory with a leading slash or drive letter ) is given it is preferable to use 2.4.3. A set of files provided by upstreams for downstreams to use relative paths throughout where is my mistake the.... Work if you are building for Ubuntu on Ubuntu and Windows, cmake_install_prefix not working! Documentation is quite comprehensive but not suitable for a beginner 2006 10:35:43 +0200 otherwise it not.