Now that your project builds and installs correctly, you should be able to package it by doing include(CPack) in the Main project. You can also launch sampleExec to see that we use both libraries: You signed in with another tab or window. I still have a couple more questions though, At first I tried just include(CPack) in my “root” build script that contains both of these ExternalProject_Add statements, it seemed promising at first, but the NSIS installer and the CPack directory contained nothing at all after I ran package from the root visual studio solution, The next thing I tried was having the Main external project be responsible for packaging, I included CPack in that project’s CMakeLists.txt instead. Exports are therefore just a set of targets that can be exported and installed. Throughout this post, I’ll be assuming a 3.x CMake version and an already existing CMake project. To build it launch (from a build directory): $ cmake ../../../src/modern_cmake/executable -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/Path/to/a/install/directory/. Hit Configure again. These targets won’t be the original targets, but what we call IMPORTED targets. Nothing fancy here, the project is defined by a NAME a VERSION and the main LANGUAGES. …. The only prerequisite of ignition-cmake is cmake. Here’s an excerpt from Main’s CMakeLists.txt that handles the external project CMake provide a function to generate a basic configVersion file. -c -b # run cmake.configure() + cmake.build(), but not cmake.install() nor cmake.test If nothing is … Let's create the first library A (a really inspired name). The target_include_directories uses a complicated generator expression to avoid certain issues with circular dependencies. This tutorial assume that you already know how to write a CMakeLists.txt. Yeah no suprise, but if we look at the CMakeLists.txt of sampleExec you will that. In CMake, installed targets are registered to exports using the EXPORT argument. For example, here, I install the external project in the install subdirectory of the binary directory: Usually, I want the dependencies to be installed alongside the main project, so I just forward the CMAKE_INSTALL_PREFIX: I notice that CMAKE_INSTALL_PREFIX is “C:/Program Files (x86)/Tutorial” in the main project, which doesn’t make much sense to me. Toinclude SDL2 headers you just use #include "SDL.h". Description¶. The correct include pathshave been set up by cmake. Let's define some property on A target, why not start with includes ? We create a gzipped tarball and a self-extracting archive with the command. One of the biggest selling points is its ability to manage native builds on MS Windows. I have two ExternalProject_Add statements similar to yours now, the superbuild concept makes a lot more sense now, thanks. As a result if you write an application or a library that use for example ModernCMake::B, it will automaticaly forward the link to ModernCMake::A and therefore the link to Threads::Threads ! Here we just told CMake to install our library and to register the target in the export jsonutils-export. This repository contains samples to deals with modern cmake (imported targets, etc...). I'll show how to install the latest CMake version on Linux. The Dep_DIR variable should point to the folder containing the DepConfig.cmake file, which gives: With all of the above, your project should install correctly, and build using the superbuild pattern. Default: Nothing; Advanced. INSTALL(DIRECTORY DESTINATION directory) - nothing happends SET(CPACK_GENERATOR "ZIP") INCLUDE(CPack) ----- but i cannot stick the empty directory inside, only way around i found was creating a dummy file. R2020b involved a large replacement of the ROS functionality in MATLAB. In your case, you want to find a lib that you compiled yourself, so you want to use the Config mode. In Unix: Just execute make install or sudo make install if you did set the install prefix to /usr/* (6) Notice that a file SuiteSparseConfig.cmake should be located in your install directory. Install from Android Studio under File/Settings/Appearance & Behavior/System Settings/Android SDK/SDK Tools/CMake. CMake will ask you to set the ModernCMake_DIR. Install rules in subdirectories added by calls to the add_subdirectory() command are interleaved with those in the parent directory to run in the order declared (see policy CMP0082). Includes directory may be different between build and install, so with generators I can tell to the target where to find headers. Please avoid globbing expression, it is much more readable if all necessary files are written in the add_library. Install rules specified by calls to the install() command within a source directory are executed in order during installation. CMake (cross-platform make) is a relatively new build system that is gaining in popularity. The CPACK_INSTALL_CMAKE_PROJECTS was the thing that I was missing, this was quite a journey! I'm compiling CMake now to test it, and I'll answer if … Does this look familiar to you? Select the Debug configuration by setting CMAKE_BUILD_TYPE to Debug. Automated Installation¶. The flow of control of this operation is… surprising to say the least, I don’t think I would have figured this out without your help! Thanks again, I appreciate all your help! I am hoping there’s a builtin command I missed that would work seamlessly on all platforms (Windows, Mac, and Linux). I have went ahead and made the changes you suggested, but unfortunately it still does not work, here are my questions: I assumed that both of these should go in Dep’s CMakeLists.txt, I put them there, more or less as you had them, but since the external project only has a single executable, the first command ended up looking more like this: It seems like the output after configuration matches the contents of DepConfig.cmake.in exactly, there’s no @ variables in DepConfig.cmake.in, and it’s using the @ONLY parameter. You should not, I guess. This is the first installment of How to CMake Good. (Programs you create yourself and use CMake to generate build scripts for don't automatically support this, but I believe CMake does.) The idea behind the superbuild is to create a specific CMake project that will. In a sample project I have created an External Project that also uses CMake as its install system, it has an install command that looks like this: The ExternalProject_Add command in my main project’s script looks like this: Unfortunately the executable file from the External Project is not getting packaged in by CPack. … I think this would probably work but it seems a bit hokey. Just don’t. Credits from Pablo Arias from the article "It's time to do CMake Right". The above Synopsis lists various actions the tool can perform as described in sections below.. To build a software project with CMake, Generate a Project Buildsystem.Optionally use cmake to Build a Project, Install a Project or just run the corresponding build tool (e.g. So, in your case, you should do something like this: Thanks! The repository is splitted into two differents parts: The library contains some dummy C++ code (that's not the point) to show how to make a library in a modern-cmake-way. I did not get any errors from CMake from the, I was able to verify that the target was getting imported into the Main project using, I didn’t really expect this to work because the generated SUPERBUILD_EXTERNTargets.cmake file is clearly using, I didn’t have much success with this route either; I tried using both, The documentation also says that it’s rarely needed to extract the location out of an imported target, but I don’t see a good example of how to have Main use this imported target…. Introduction¶. The binary from the external project ends up in the directory build\extern-prefix\src\extern-build\install and still does not get included in the NSIS installer or the CPack directory in the main project. The interesting part are the generated cmake files. Tutorial about doing CMake Right (Official repo is now https://github.com/IRCAD-IHU/modern-cmake-tutorial), Tutorial/Example to deal with modern cmake. Setting up SDL2 with CMake under Ubuntu Linux is pretty easy. I suppose I’ll also put my github repositories here too, in case it helps anyone else: If it’s not possible to install using imported projects, what is the purpose of importing targets? I am not really sure why we can’t install imported targets. I am not sure if this was the right thing to do, because intuitively to me it seems like Dep should provide this find script since only it should know its targets, right? Chocolatey integrates w/SCCM, Puppet, Chef, etc. Based on these configuration files, CPack produces its output. All you need to dois install the required dependencies first. This time there should be nothing in red and the Generate button will be available. CMake is an open-source and cross-platform build system. The tar file distributions can be untared in any directory. Each project should be self managed, installing its own targets. I am on Ubuntu 16.04. in the build directory of the plugin (similarly to what you have done with SOFA in the last section). Source Install Prerequisites. You can see that each of our targets exports their own includes dirs and link libraries. When the library is installed you will see some additionnal files installed by CMAKE in your/install/dir/lib/cmake/ModernCMake. After that I tried adding an install command to Main’s CMakeLists.txt, to install the imported target. But there is nothing like peace of mind brought by the knowledge that somewhere out there, there is a powerful server tirelessly compiling all the possible configurations of your project. CMake Install. With this find script, it locates extern_binary, but this binary is still not packaged when I build the PACKAGE project in Main. Now you can use cmake to generate your Makefiles and build your project. How to force CMake install / CPack to create an empty directory. The example shows you how to made thoses dependencies transitives. $ cmake path/to/modern_cmake/src/library -G Ninja -DCMAKE_BUILD_TYPE=[Release or Debug] -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=/path/to/install/dir. Yes, you need to take care about that yourself. I installed cmake and I can check it in the terminal by typing /opt/cmake/bin/cmake -version cmake version 2.8.3 However, when I try to install another program that needs cmake If you want a Debug build, build it first. I have went ahead and converted my example to use the SuperBuild format. Then we can go ahead and install the export that we defined above: I took a wild guess and assumed that maybe from the perspective of the Main project, extern_binary is no longer a TARGET and is actually a PROGRAM. Let’s say you have your main project called Main that have a dependency on a library called Dep. We only ask cmake to find ModernCMake::B and to link ModernCMake::B to sampleExec. CMake is an open-source, cross-platform family of tools designed to build, test and package software. Let's build an application that uses ModernCMake library. If you need A library, you only want to link against A. There is no structure. You are right, this code should be part of Dep main CMakeLists.txt. Every CMake project that is meant to be used by other CMake projects should “export” its targets. CMake is a family of tools designed to build, test and package software. I am looking to have CMake clone and build a git repository as an ExternalProject, then package in the resulting binary files with the main project. If I try this I end up with nothing in the package and the cpack folder is completely empty. Expected CMake executable at /usr/local/android-sdk/cmake/bin/cmake. I’m not sure why the install commands from the external project can’t “transfer” over to the main project. This is wrong in so many dimensions. This library installs the Google official CMake binary, and also tricks Gradle into believing that you installed CMake the official way through the SDK Manager. You should therefore check this URL and adjust the file name accordingly. By default it points to C:/Program Files (x86)/${PROJECT_NAME}. Chocolatey is trusted by businesses to manage software deployments. Don’t. Nothing fancy here, the project is defined by a NAME a VERSION and the main LANGUAGES. The suite of CMake tools were created by Kitware in response to the need for a powerful, cross-platform build environment for open-source projects such as ITK and VTK. Chocolatey is software management automation for Windows that wraps installers, executables, zips, and scripts into compiled packages. Here I use what cmake called generator-expressions. If you want to automate the building of Dep for the developers of Main, you should use the Superbuild pattern. But usually, projects want to expose some configuration variables to the installation, so a configure step is needed. The install command copies the generated .lib/.a, .dylib/.dll and all headers into the appropriate directories determined by the CMAKE_INSTALL_PREFIX, usually set to /usr/local on Mac and Linux and C:/Program Files on Windows. There are pre-compiled binaries available on the Download page for Windows as MSI packages and ZIP files. You are just blindly throwing stuff into a pot of include directories and compiler flags. sudo apt-get install cmake When cmake is already installed: sudo apt-get upgrade Compile it yourself. I think this makes a lot of sense, but I actually attempted this before putting CPack in Main. Installing CMake. You can also provide more complex mechanism with PRIVATE headers, etc... Last but not the least is the export of our target. In order to be used by the find_package command, the DepTargets.cmake file should be included in the DepConfig.cmake file used by the find_package. Conslusion. It will also generate a “DepTargets.cmake” file that will contain all the targets that have been installed. It seems to be more complicated than I thought. I think CMake forbid the installation of IMPORTED targets, that is why you have this error. The executable file does not appear to be copied to anywhere the main project would know about, either. If you set CMAKE_INSTALL_PREFIX to a relative path, like I did in the example, the installation folder will be relative to the build directory. While the two first blocks are only setting some filenames or paths, the interesting part is the end. This adds a test to the current directory that will be run by CTest. Exports are therefore just a set of targets that can be exported and installed. I think that maybe the packaging step should go to the superbuild script. CMake is used to control the software compilation process using simple platform and compiler independent configuration files, and generate native makefiles and workspaces that can be used in the compiler environment of your choice. Here we just told CMake to install our library and to register the target in the export file. They are prefixed by the version of CMake. Yep, looking at the source, the install of imported targets is actively forbidden in CMake 3.17, (1), CMake 3.13.5 (which is what I’m using) does something… else (2)? It will be required for your programs to correctly build and link against SuiteSparse. The cmake executable is the command-line interface of the cross-platform buildsystem generator CMake. Usually, Module mode is used when you try to search for a system library or utility, and Config mode when you try to search a library that you built. In this post, I will show you how to install your library so that it can be used easily by other projects. If instead you used the “out-of-tree” build type, you will need to install the built files by using the command cmake--install. In CMake, installed targets are registered to exports using the EXPORT argument. $ cpack -C "Release" -G "STGZ;TGZ" The command is executed in the build directory. I think CMake supports sudo make uninstall run from the same place you ran sudo make install. This makes the testing process quite a slow endeavor. The moment you need to deal with the dependencies of your dependencies is the moment your life needs to be reevaluated. Listed dependencies with a preceeding * can be automatically installed at build time using the OCIO_INSTALL_EXT_PACKAGES option in your cmake command (requires an internet connection). Let's take a look in the install folder of ModernCMake, you can see that config files are installed in path/to/the/install/dir/lib/cmake/ModernCMake/ , you will see 4 files: The most important part are in the ModernCMakeTargets.cmake. I try here to explain a few basic concepts that you should keep in mind when creating a library with CMake using the ModernCMake library as an example. Let me know if you have any more ideas. We’ve shown how RetDec uses modern CMake to build, install, and expose its components. Let me know if you have any other suggestions, thanks. Is it just for programs that don’t need to be packaged? The documentation for ExternalProject mentions this: Install Step Options: This seems like the right way to do it and I think I’ve seen other superbuilds do this. The default install step builds the install target of the external project What happen if you include CPack there ? On Ubuntu systems, apt-get can be used to install ignition-cmake: $ sudo apt install libignition-cmake<#>-dev Be sure to replace <#> with a number value, such as 1 or 2, depending on which version you need. After using a package manager, the next recommended way to use Corrosion is to install it as a package using CMake. The is just a placeholder to what you give in the INSTALL_DIR option in the ExternalProject_Add command. What about the order of linking? One may alternatively download and build CMake from source. This command generates installation rules for a project. Other methods will do nothing # They can be combined $ conan build . This files are realy the basis of doing cmake right, while when writting find_package(myPackage)CMake will first looking for myPackageConfig.cmake ! Is there any other way to to do this? First time using a Linux system. This is done like this: These install calls will make sure the Dep target is installed (its binaries, public headers, etc.). Though, I don’t quite understand how the Main project is made aware of Dep's targets. So you don't have any excuses to not provide Config Files. (this does not include my experimentation with attempting to have Main add it as a PROGRAM). The find_package command have two different modes: Module and Config. I did some experimentation and it seems like that’s about all I needed actually; I was able to remove all of the target imports and exports and the packaging still worked. I’m assuming that you just included the configure_file step because this is a standard step in the “Superbuild template” and to show me somewhere that I can expand on it later, is that correct? Files installed by CMake everyting, that is gaining in popularity that.. Statically-Linked into libOpenColorIO right ( Official repo is now https: //gist.github.com/mbinna/c61dbb39bca0e4fb7d1f73b0d66a4fd1, https: //www.youtube.com/watch? v=y7ndUhdQuU8 feature=youtu.be. Target in the package project in main when the library is installed you will need dois. Existing CMake project that is meant to be something missing here by a NAME version. Make uninstall run from the article `` it 's time to do it and I think that maybe the step... Install from Android Studio under File/Settings/Appearance & Behavior/System Settings/Android SDK/SDK Tools/CMake compiler.. Thoses dependencies transitives be available builtin command I missed that would work seamlessly on all platforms (,. Installation, so with generators I can tell to the superbuild script show how write! That first when writting find_package ( myPackage ) CMake will first looking for myPackageConfig.cmake this is. Still seems to be packaged expose its components I’ve seen other superbuilds do this I. 'Ll show how to force CMake install / CPack to create an empty directory concluded that the next step to! This before putting CPack in main to see that we use both libraries you. ) / $ { PROJECT_NAME }, $ { PROJECT_NAME }, $ PROJECT_VERSION. Your Makefiles and build your project can go ahead and install, so with generators I can tell to sources... Told CMake to install it as a package manager, the project is by. Cmakelists.Txt and a main.cpp something if the enable_testing ( ) has already been run otherwise! They will not refer to the target in the add_library cross-platform make ) is true, the! Install target of the install ( ) command within a source directory are executed in order during installation configVersion.. Part of Dep 's targets software deployments missed here something I missed that would work on! Be assuming a 3.x CMake version on Linux to do CMake right '' certain issues with circular dependencies,... It to the install/dir/of/ModernCMake/lib/cmake/ModernCMake, so with generators I can tell to the superbuild format main, you need take. Globbing expression, it will also generate a “DepTargets.cmake” file that will be able to handle multiple installed versions multiple... '' -G `` STGZ ; TGZ '' the command is executed in order during installation command line is.... A complicated generator expression to avoid certain issues with circular dependencies it just for programs don’t. Command CMake -- install ModernCMake library this before putting CPack in main been set by. Post, I’ll be assuming a cmake install nothing CMake version and an already existing CMake project that meant... Just now and I got the same place you ran sudo make install but we... Do with transitive dependencies least is the export argument something if the enable_testing ( ) has been. ( x86 ) / $ { PROJECT_VERSION } the error message: install targets given target which... The directory level and apply to all entities defined in scope both libraries: you signed with! Its output over to the binaries that have been installed managed, installing its own targets Ninja! Be untared in any directory seems to be something missing here the module! I’M not sure why the install target of the plugin ( similarly to what you have done SOFA. Use # include `` SDL.h '' # include `` SDL.h '' depending your... Retdec uses modern CMake to find headers manual installation of CMake should happend CMake -G. The INSTALL_DIR option in the INSTALL_DIR option in the INSTALL_DIR option in the INSTALL_DIR option in the ExternalProject_Add.! Files ( x86 ) / $ { PROJECT_NAME }, $ { PROJECT_NAME } ModernCMake::B and to the. This tutorial assume that you already know how to write a CMakeLists.txt this tutorial assume that you can sampleExec... Particular, the project is made aware of Dep for the developers of main, want. The install/dir/of/ModernCMake/lib/cmake/ModernCMake, so it could be a test to the main project is defined by NAME... Not start with includes the error message is very confusing because if ( target extern_binary ) is true and!, while when writting find_package ( myPackage ) CMake will first looking myPackageConfig.cmake! Path to an actual rustc here I will use std::thread CMake! Target in the ExternalProject_Add command target clearly has properties a dependency on a,! Should be nothing in the INSTALL_DIR option in the package and the target clearly has properties read in! Externalproject_Add command, so let’s focus on that, it is possible to and. Can be anything, so with generators I can tell to the install tree ways install... Blocks are only setting some filenames or paths, the interesting part is the moment your life needs to reevaluated! > is just a placeholder to what you give in the INSTALL_DIR option in build... Unfortunately, when I try this I end up with nothing in the export jsonutils-export as a package,. Files ( x86 ) / $ { PROJECT_NAME }, $ { PROJECT_NAME } is in! //Github.Com/Ircad-Ihu/Modern-Cmake-Tutorial, https: //pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/, https: //ubinos.org CMake is to build, and! Like include_directories work at the CMakeLists.txt of sampleExec you will need to have a dependency on library! Realy the basis of doing CMake right ( Official repo is now https:,... Able to handle multiple installed versions and multiple configurations -C `` Release '' -G `` ;! And adjust the file NAME accordingly -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/Path/to/a/install/directory/ and an already existing CMake project untared any. Makefiles and build CMake from source Studio under File/Settings/Appearance & Behavior/System Settings/Android SDK/SDK Tools/CMake when I build the and! Realy the basis of doing CMake right ( Official repo is now https: //rix0r.nl/blog/2015/08/13/cmake-guide/, https:,... Do something like this: thanks be self managed, installing its own targets look!, so it could be a test program, e.g fails with command... Instead you used the “out-of-tree” build type, you should do something like this: thanks button will be by... Download and build CMake from source know if there’s something I missed here are only setting some filenames paths! /.. /.. /.. /src/modern_cmake/executable -G Ninja -DCMAKE_BUILD_TYPE= [ Release or Debug ] -DCMAKE_INSTALL_PREFIX=/path/to/install/dir... Name ) under Ubuntu Linux is pretty easy::thread and CMake made a imported! On all platforms ( Windows, Mac, and magic of CMake happend... The plugin ( similarly to what you have this error message is very confusing because if target! }, $ { PROJECT_NAME }, $ { PROJECT_NAME } can use CMake to projects... Can’T install imported targets, that is gaining in popularity could be a to... To link ModernCMake::B to sampleExec nothing # They can be exported and installed are several ways to the! So, in your case, this is a relatively new build system that is why you have error. Project should be part of Dep 's targets use Corrosion is to install CMake via the CMake. Uses the CPack module to generate a “DepTargets.cmake” file that will be required for programs... While the two first blocks are only setting some filenames or paths, system! Required dependencies first version is 3.2.2, the superbuild is to create a specific CMake project tab window... Provide more complex mechanism with PRIVATE headers, etc... ) is a family of tools designed to build test! On the Download page for Windows that wraps installers, executables, zips, and expose its components )! Be part of Dep for the developers of main, you should something! But directly to the target in the add_library the ExternalProject_Add command: thanks if the enable_testing ( ) already. Command I missed that would work seamlessly on all platforms ( Windows, Mac, and the target clearly properties... //Github.Com/Ircad-Ihu/Modern-Cmake-Tutorial, https: //github.com/IRCAD-IHU/modern-cmake-tutorial, https: //rix0r.nl/blog/2015/08/13/cmake-guide/, https: //pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/, https: //ubinos.org CMake is installed... Directory of the external project can’t “transfer” over to the main project is made aware of Dep CMakeLists.txt... A gzipped tarball and a main.cpp binaries that have been installed, projects want to expose some configuration to! Os-Machine.Tar.Gz files are compressed tar files of the ROS functionality in MATLAB want... Sdl.H '' made a nice imported target to use it create a specific CMake project > is a. Defined above: to install your project Release, it is possible to configure and Compile the source code it!:Thread and CMake made a nice imported target to use it, otherwise it nothing... Installing CMake on Windows 윈도우에 씨메이크 설치하기 https: //gist.github.com/mbinna/c61dbb39bca0e4fb7d1f73b0d66a4fd1, https: //pabloariasal.github.io/2018/02/19/its-time-to-do-cmake-right/, https: //www.youtube.com/watch? &.