Cmake add library dependency. Adding object-file dependencies.
Cmake add library dependency. Have a folder called vendors where I add submodules e.
Cmake add library dependency 1. My advice is to disable auto-linking and use cmake's dependency handling: add_definitions( -DBOOST_ALL_NO_LIB ) In some cases, you may need to explicitly specify that a dynamic Boost is used: TLDR: I would like to ask CMake to wait for ExternalProject_Add to complete before it attempts to move on to the next subdirectory and build a library that happens to use one of the files of the external project. txt file generating Makefiles. a PUBLIC m). I have a header-only library that depends on some other library. described here. You can specify the relationship between a and b by adding. The add_dependencies makes it wait before trying to include the dirs needed. The target has no output file and is always considered out of date even if the commands try to create a file with the name of the target. I can clone and put them into my project as a git submodule and use add_subdirectory to use them in my project. I have other projects where the dependency is within the same project and add_dependencies works in Looking for potential info on how to handle the following case I help maintain a piece of software, and im trying to bring our dependency building into the main cmake project. 8. add_dependencies( <target> [ <target-dependency> ] Makes a top-level <target> depend on other top-level targets to ensure that they build before <target> does. Run the following command to create a vcpkg manifest file (vcpkg. to the path. 2 CMake make add_library depend on ExternalProject_Add. 11 CMake library dependencies. CMake and text files with extension . 2. Create a new directory called custom-overlay next to the Hello World project you created in the Install and use packages with CMake tutorial. このオプションは、add_custom_command(OUTPUT)コマンドとセットで使用するためのものです。add_custom_command(OUTPUT)は、独自の生成方法を定義するためのものですが、そのままでは呼び出されません。そこで、add_custom_target()コマンドにSOURCESオプションを付与することでこれを可能とします。 Basic C++ setup with dependency management in CMake. I was asking for the detailed steps on how to include/compile a library for a specific project in CLion, including linking. – Raekye. txt an Do I have to add CUDA_ADD_EXECUTABLE() to include any cuda-files? How will I then link it to the other files? I tried adding the following to the CMakeLists. For this reason, when A links B as PRIVATE and another target C links A, CMake will still add B to the list of libraries to be linked for C because parts of B are needed by A, but A itself doesn't have that dependency encoded into it. Use the add_custom_command() command to generate a file with dependencies. json file in the project's directory. First time dependencies are added in add_executable() call, but all of them should be source or header files, so you cannot add linker-dependency at this stage. I would like them all to be included in the output . 3. progA doesn’t directly use libE, libF, libG, Learn how to create libraries with CMake's "add_library". dll is a dependency of A. Best Software Engineering Books to Read of December 2024. cmake bin/ thirdparty. Using add_custom_target and add_dependencies as suggested by @Simon worked for me, to force some header and library files from another build to be copied before my normal target builds. I add a premake (I could have used a cmake) to each external library and I configure so I can see the project in VS as well as the cpp and the hpp files. Project dependencies in CMake are not managed by add_dependencies(< target> [< target-dependency>]) Make a top-level < target> depend on other top-level targets to ensure that they build before < target> does. However, it seems that the custom command is only executed when a target specifically requests its output files. Posted on July 3, 2022 — Updated January 9, 2024 . or some commands like target_link_libraries do it automatically:the build system to make sure the library being linked is up That tutorial doesn't seem to explain how to handle exporting external library dependencies. To add libraries to your project, use find_package (if you use separate libraries, for example, installed in the system) and target_link_libraries CMake commands. 7 with the same results. lib // this is the importlibrary that loads thirdparty. txt looks something like this: add_library(A STATIC a. 3 - Set up the custom overlay. Create the manifest file and add the fmt dependency. txt program. c (as well as main. so, with libA. Previous message (by thread): [CMake] Mingw64: add a statically linked library adds libstdc++ dependency Next message (by thread): [CMake] Mingw64: add a statically linked library adds libstdc++ dependency FLEX_${Name}_DEFINED - true is the macro ran successfully FLEX_${Name}_OUTPUTS - the source file generated by the custom rule, an alias for FlexOutput FLEX_${Name}_INPUT - the flex source file, an alias for ${FlexInput} FLEX_${Name}_OUTPUT_HEADER - the header flex output, if any. The second one builds the project, using the dependencies installed in step 1 (specified with CMAKE_PREFIX_PATH). CMake and FIND_PACKAGE. a (prebuilt) in target_link_dependencies(libB PRIVATE libE. Next, you need to create a CMakeLists. dll Generate a manifest file and add dependencies. json should now contain: For a user of your project, that’s all it takes: running two CMake projects: The first one builds the dependencies and installs them in a location chosen by the user (here . h lib/ thirdparty. Note that ExternalProject_add doesn’t mix well with add_library in the same project. cpp) target_link_libraries(main a) add_dependencies(main a) Neither target_link_libraries(main a) nor add_dependencies(main a) can request compilation a CMake: add dependency to IMPORTED library. Static libraries do not carry information about other libraries they depend on. ${CMAKE_SOURCE_DIR} is where CMake is looking for your sources. 1 Rating is 5 out of 5. e without having to trawl GET_RUNTIME_DEPENDENCIES or invoke ADD_CUSTOM_COMMAND (directly or indirectly) downstream of the actual linkage. If I understand the documentation correctly, you could use different / others build system as subproject, and it doesn't seem basing on cmake. dll include/ thirdparty. It is implemented by setting target property IMPORTED_LINK_INTERFACE_LIBRARIES. There are known issues with this the scanner. B’s CMakeLists. txt uses ExternalProject_Add() to invoke the code generator subdirectory’s CMakeLists. /dependencies/install). add_library(project project(foo-core VERSION 0. You should be able to define CMAKE_PREFIX_PATH in a CMakeList. 5. B-config. a and libG. so ,with no dependencies. If we're using the legacy <package-name>_* variables then it's easy:. libprocess is add_library(process), and mesos-agent is add_executable(mesos-agent). Sure, I like the second way - the build is faster. See the INTERFACE_LINK_LIBRARIES_DIRECT_EXCLUDE target property to exclude items. cmake is imported by progA. cpp ) add_library(master_library INTERFACE) # Link the master library with the other So, let’s say I have separate libraries A, B & C in separate project folders. How do I make sure that everything compiles and links correctly, ideally in the "correct" cmake way? With CMake, library dependencies are transitive, so you shouldn't call add_subdirectory twice in test/CMakeFiles. A top-level target is one created by one of the add_executable(), add_library(), or add_custom_target() commands (but not targets generated by CMake like install). DEPENDS. txt file in the root directory of your project. . 2. Shared Library libB. The command add_subdirectory in CMake language does only one thing – takes the directory path relative to the current CMakeLists. In the context of the buildsystem definition as a whole, it is largely irrelevant whether particular libraries are SHARED or STATIC-- the commands, dependency specifications and other APIs work similarly regardless of the library type. CMake transitive dependency is not found via find_package() 3. The objlib has a dependent library, say, ZLIB. This function takes two arguments - the target that depends on another A top-level target is one created by one of the add_executable(), add_library(), or add_custom_target() commands (but not targets generated by CMake like install). Add external libraries Through external libraries, Qt Creator can support code completion and syntax highlighting as if the code were a part of the current project or the Qt library. By saying compile-only dependency I mean propagating compile-time properties, most importantly -I rules. ${CMAKE_BINARY_DIR} is a shortcut to your top-level build directory. outpost. Generic "transitive behavior" in CMake Package Configuration File (find_dependency) 12. Moreover, if you want to create a dependency for lib2 on lib1, you should do it through target_link_libraries: a dependency is not only about include directories, but also about compile options, definitions, target properties. CMake will propagate linking them as needed, even when something links to them as PRIVATE (static libraries need to propagate their used I'm building a project in CMake. I would suggest to do the following: Create a file structure like the following I need to add Boost libraries into my CMakeLists. Commented Jan 13, 2021 at 7:59. CMake is used to control the software compilation process using simple platform and compiler independent configuration files. cpp) My problem is that board. For INTERFACE targets target_link_libraries should be used, even if it doesn't have an effect on the linker options. gcc's linker for instance is very picky about this and will refuse to link if you don't order the arguments in a flattened list of static libraries correctly. Adding object-file dependencies. CMake searches well-known locations for each dependency, and the provided software may supply additional hints or locations to CMake to find each dependency. txt of project "abc". dll B. json should look like this: For this to work, your dependencies' CMake modules must use CMake 3 targets with all their target properties set up correctly. Add a comment | Your Answer CMake is a cross-platform, open-source build system. ; Within custom-overlay directory, create a The cmake documentation says the following about the DEPENDS parameter: The DEPENDS option specifies files on which the command depends. Read more on those in my CMake targets article before you The CMake code for my dependency is old and variable-oriented, so my project builds the dependency with ExternalProject_Add and links against it using variables: To add a dependency in CMake targets, you can use the add_dependencies() function in CMake. txt (nor do you need to list lib1 as a dependency of test since it is already a dependency of lib2's). com Mon Jun 17 05:16:48 EDT 2019. 21 (doing so was buggy in earlier versions, and the even-hacker target_sources may be used in earlier versions, too). I need to do some special conditioning on an archive (static library). Dependencies added to an :ref:`imported target <Imported Targets>` or an :ref:`interface library <Interface Libraries>` are followed transitively in its Generally, a dependency should be specified in a use of target_link_libraries() with the PRIVATE keyword if it is used by only the implementation of a library, and not in the header files. Introduction. By default nothing depends on the custom target. txt in subdir1: CUDA_ADD_EXECUTABLE(cuda file2. When I started seriously learning C++ a couple of years ago, I struggled with a proper setup the most. A top-level target is one created by ADD_EXECUTABLE, ADD_LIBRARY, or ADD_CUSTOM_TARGET. Visual Studio Generators and the Xcode generator A top-level target is one created by one of the add_executable(), add_library(), or add_custom_target() commands (but not targets generated by CMake like install). I am using CMake 3. OBJ. json) in your project's directory by running the vcpkg new command from within the helloworld directory: vcpkg new --application Next, add the fmt dependency: vcpkg add port fmt Your vcpkg. From the other side Cmake provides interface library specifically for "header-only library". dll thirdparty_dep2. Those subdirectories (x, y) are dependencies of one or more subdirectories (a, b), but not on the parent/root. But, It does have the nice benefit of making the files show up in Visual Studio projects in the expected location. A subproject for a library. 1 CMake manage dependency (libsodium) 3 How to install dependent libraries with CMake? Thanks @arrowd. You already know the location of your library. 39. Related. The file will contain a number of SET commands that will set all the variables needed for library dependency information. txt? Is there a way I can do that without hard-coding a path to somelib? From the CMake documentation I understand there are really 3 ways to link a library that is not built as a target in a subproject of your overall application/library. A: B target_link_libraries(A B) has the same effect plus: Appropriate linker flags are added to include the binary generated for B among the files linked when generating the binary for A add_dependencies(mylib fmt::fmt-header-only) simply makes sure that the target fmt::fmt-header-only is up to date before mylib is built. I’m in a situation where our current build system uses a script that generates C++ code. g. ; From the user perspective, is that really more difficult than handling I am using CMake on a linux environment using cmake 2. In normal cases, if you know the output of COMMAND, then place it into add_custom_command(OUTPUT) flow. But CMake doesn't allow adding dependencies for one file more than once. 9. Purpose. the bar library) can be propagated to the final target. 2 CMake install target dependencies. Essentially a meta build to build the project and all of its dependencies via the single cmake generate and build command. In CMake 3. More Description: Suppose that my CMake project has two There is no problems when your library is a part of the project or you're importing it using config mode of find_package command (see documentation and example). It has its own domain specific language and various modules for most commonly used libraries and software frameworks. For a number of reasons I have to manually generate a static library through a custom command. These source files variously depend on these generated header files. cmake (it may not use cmake tool or you don't want to do it) the answer is to emulate such process:. If any dependency is an OUTPUT of another custom command in the same directory (CMakeLists. Thank you SOURCES. cc src/foobaz/baz. json) in the root of the helloworld folder: vcpkg new --application The vcpkg new command adds a vcpkg. Meson can use the CMake find_package() function to detect dependencies with the builtin Find<NAME>. If Object Libraries are listed but given no destination for their object files, they will be exported as Interface Libraries Now, I'm quite confused about what approach to use to make those dependencies work. How can I add this dependency to the subdirectory CMakeLists. [CMake] Mingw64: add a statically linked library adds libstdc++ dependency William Zeitler william at williamzeitler. Keep in mind, that it will gather all dependent libraries including system, you will need to filter them. When this target is linked into another target then the libraries linked to this target will appear on the link line for the other target too. target_link_libraries(mylib INTERFACE fmt::fmt-header-only) The RUNTIME_DEPENDENCIES and RUNTIME_DEPENDENCY_SET keywords are mutually exclusive. txt file) CMake automatically brings the other custom command into the target in which this command is built. The full source and cmake files can be found in this issue. If you really want to do something like in Visual Studio, you could probably use the command given in this answer to build a custom_command in CMake. 19 introduces: a dependency of INTERFACE library from the file. txt. As stated in the comments, target_include_directories should be given a path to a directory, not to a file. This target represents a collection of source files (C/C++, Fortran, etc. Previous message (by thread): [CMake] Cross-Compiling with CMake and QtCreator Next message (by thread): [CMake] Mingw64: add a statically linked library adds libstdc++ dependency Messages sorted by: And cmake will do install step after successful build. txt in that directory. I want to compile a binary file that links with the libB. A. The result of using find_package() (GenerateExportHeader) add_library(ClimbingStats SHARED climbingstats. 2024-12-13. conker. txt and all cpp and header files of the lib app/CMakeLists. To expand on DLRdave answer above you don't need set manually prefixes and suffixes for static libraries because CMAKE provides variables with the right ones for each platform. CMake will generate all files here during the build. lib A. It might also be the case that the user has disabled CMake's RPATH handling with I got a project where I use a third party library (Windows). a libF. With cmake you could specify an absolute path for target_link_libraries here or add since it allows you to add info like include directories and additional dependencies to the lib. See the DEPENDS option of ADD_CUSTOM_TARGET and ADD_CUSTOM_COMMAND for adding file-level dependencies Since CLion relies on CMake build system, you can do this with CMake commands. lib/. Why so many people tend to use add_custom_command(TARGET) flow? This command flow is for some specific cases. ), but some of them complained that this way the projects can be compiled many times unnecessarily (like Module1 in this example); or requires a full path to be given. add_library(objlib OBJECT ) target_include_directories(objlib ${ZLIB_INCLUDE_DIRS}) add_executable(maintarget $<TARGET_OBJECTS:objlib>) target_link_libraries(maintarget add_library (project2 ${sources}) target_link_libraries (project2 "path to ext lib"/"name of ext lib") or you could add. Not sure what do you want to achieve by add_dependencies(tdoku @donturner You don't have to add . dll interface. c Hello, I have library which we will call libB with statically linked dependencies libE. Note that this will only create a utility target. Using a CMake package for one of the shipped package scripts. When adding a new library or executable, prefer using the name directly as the target. Optional dependencies for add_custom_command. com Sat Jun 15 15:33:38 EDT 2019. So you have dependency cycle. 11. Consider the following situation. for class inheritance), then it should be specified as a PUBLIC dependency. I used add_library(extLib SHARED IMPORTED) and set IMPORTED_LOCATION and IMPORTED_IMPLIB as well. Some of the cross-compiled source code is generated by a host-based code generation tool; since that tool needs a different toolchain, the top-level CMakeLists. 9) works as follows for dependencies: with a call to add_dependencies you cannot add a dependency which is the OUTPUT of a custom command IOW a (generated) file. The feature which I was looking for (add dependency of static import library on other import libraries) is called transitive linking. json file and a vcpkg-configuration. Nothing about the Crypto++ library, as it was just an example library given (hence no proper tag). 21; it looks like SET_TARGET_PROPERTIES doesn’t take generate expressions for IMPORTED_IMPLIB or IMPORTED_LOCATION, and you still need The ExternalProject_Add_StepDependencies() function can be used to add dependencies to a step. An example would be I'm working on project that use some third-party libraries. Add the fmt package as a dependency: vcpkg add port fmt Your vcpkg. Hot Network Questions How plausible is this airship design? Questionmark when the word "Frage" is already in the question Is there a filesystem supporting Linux permissions and Windows To add a link to the help file for cmake-gui and a link to the CMake web page add the following: set (CPACK_NSIS_MENU_LINKS "doc/cmake-${VERSION_MAJOR}. @donturner You don't have to add . C is a static library but it’s CMake is unimportant for this example. I’m setting up an imported library: add_library(Example::LibA SHARED IMPORTED) set_target_properties(Example::LibA PROPERTIES IMPORTED_LOCATION "${LibA_LIBRARY}" IMPORTED_IMPLIB Adding a new library or executable. Other generators may depend on the source files that would be generated If all you want is a convenient target for use by others and don't care about whether you have one or multiple libraries, cmake can do that with an interface library: add_library(library1 SHARED file1. cmake. Today I know, that CMake should be used - unlike in, for instance, the Visual Studio which has it's own compiler. project(rpc) add_library (rpc SHARED ${PROJECT_SOURCE_LIST}) # must add this command to scan dependencies of target rpc add_dependencies (rpc utils) target_link_libraries (${TEST_SOURCE_FILE_NAME} libutils. In target_link_libraries, specify either the variable generated by find_packages or library target I'm new to cmake, so I'm having trouble figuring out how to model the following: My program requires a third party library that I only have access to in the form of headers and *. Do note that this is a bit of a hack, since there are some cases that will This is possible in nowadays with CMake 3. 8 Linking against an ExternalProject_add dependency in CMAKE. See I need to add a compile-only dependency to external lib my in CMake file - referred to as the_lib later in the question. c) depends on somelib. cpp) In comparison, static libraries work intuitively when linked through multiple levels of dependencies. Software Engineering at Google: Lessons Learned from Programming Over Time How to document external library dependencies in CMake projects? To force cmake to make /usr/include a dependency that is NOT optimized away, try this trick: prepend /. CMake subdirectories dependency. CMake target_link_libraries() documentation. This is the code I have looks something like this: #… I have a header-only Watch Effective CMake talk by Daniel Pfeifer and Using Modern CMake Patterns to Enforce a Good Modular Design by Mathieu Ropert to get an idea and hints on modern To add libraries to your project, use find_package (if you use separate libraries, for example, installed in the system) and target_link_libraries CMake commands. How to add a transitive dependency to a CMake target? To add a transitive dependency to a CMake target, you can use the target_link_libraries function in your CMakeLists. 21 for some cases, but was not fully supported: It did not place the object files before libraries on link lines. Ninja: Cannot create dependency of an object library (#24411) · Issues · CMake / CMake · GitLab (kitware. txt lib1/CMakeLists. In this section we will show how the BUILD_SHARED_LIBS variable can be used to control the default behavior of add_library(), and allow control over how libraries without an explicit type (STATIC, SHARED, MODULE or OBJECT) are built. I am building a static library in CMake, which is dependent on many other static libraries. Here's how you can do it: Open your find_library(FOO_LIB foo) CMake will figure out itself how the actual file name is. If a you want to influence the linker options, you use target_link_libraries. Whether you need a static, shared or another type of library, this post has all C++ libraries covered! However, this argument is ignored if the library is a dependency for a target that is built by default! Finally, you need to specify which files will be used to generate the library On a standard cmake library I would just have to add the INTERFACE_INCLUDE_DIRECTORIES property in the library CMakeLists to make cmake link my app with the relevant -I and -L gcc parameters : (lib2 STATIC IMPORTED GLOBAL) add_dependencies(lib2 lib2_target) # specify where the library is and where to find the Then you can configure your project with CMake, but as it doesn't have any magic way to find your installed library, it won't find anything, but it'll create two cache variables: SIFTGPU_INCLUDE_DIR and SIFTGPU_LIBRARY. The only library linked against is one built by the project. Sometimes this dependency can contain only a header file (y), sometimes it can contain both a header file and a source file (x). ) Then in the target that uses the library: target_link_libraries(dependee PUBLIC/INTERFACE/PRIVATE # pick one project) and include the header like this: #include <project/folder1/file. But the difficult part, is that the code gene List of libraries that consumers of this library should treat as direct link dependencies. cpp) target_link_libraries(A PRIVATE B) @MertMertce -- It internally uses file(GET_RUNTIME_DEPENDENCIES), which uses system tools to ask the compiled binary for the list of dependencies. External dependencies. Referencing $<TARGET_OBJECTS> in target_link_libraries calls worked in versions of CMake prior to 3. Use source file from CMake ExternalProject as dependency of target. txt // Root CMake file src MyCode. I have an imported library Foo::Foo: add_library(Foo::Foo UNKNOWN IMPORTED) This imported library has been populated with appropriate How to let a subdirectory of the same project decide if the parent should add a subdirectory. The dependency between libraries and libraries+executable could be managed via target_link_libraries. && make to build the project. txt project file to specify dependencies. so) CMake library dependency on compiled IDL file. I have to build a build utility to build a program, which has to be included with add_subdirectory(). Similarly, you should add the PUBLIC keyword here also: That’s where you do cd build && cmake . If you copied the library to your source directory, you need to reference it with the right I’m working on a cross-compilation project with a top-level CMakeLists. Troubleshooting. a, libF. In the CMakeLists. Linking is done via target_link_libraries. In case you can't modify 3rd party so it will produce <package>Config. Solution¶. 3 - Add dependencies and project files. Specifies a semicolon-separated list of full-paths to files on which any object files compiled from this source file depend. 2) The BUILD_SHARED_LIBS variable may be enabled to change the behavior of add_library() to build shared libraries by default. cmake modules and exported project configurations (usually in /usr/lib/cmake). When a static library has dependencies, the dependencies it links to with PRIVATE are added to the interface wrapped in $<LINK_ONLY>. cpp) target_link_libraries(B PRIVATE C) And A’s CMakeLists. CMake - Adding dependencies to other projects. h files into add_executable. In this file, use the "add_subdirectory" command to include the source code of the dependency library. It doesn't link fmt::fmt-header-only regardless of the target type of mylib. However, I could not figure out how to include a simple, header-only, third party library without getting bothered with warnings about that library. Using a linker flag: target_link_libraries(<tgt> [SHARED|STATIC Consider the following scenario: Shared Library libA. I have defined different project progA which is using libB which is exported as B-config. extern. You should not be manually creating imported static libraries for system libraries! The correct commands are find_library or (better) find_package. Consists of custom CMake modules. How do you do it or how do you add it? boost; cmake; Share. add_dependencies(< target > [< target-dependency >]) トップレベルの <target> が他のトップレベルのターゲットに依存させ、 <target> より先にビルドされるようにします。 CMake の add_library() 関数は、ライブラリターゲットを定義するために使用されます。 A top-level target is one created by one of the add_executable(), add_library(), or add_custom_target() commands Creating a new build folder, CMake detected the dependencies of the generated target on the header files included by the generated file. Using the path will just embed the build-time path into your package. As I'm unfamiliar with CMake, I try and avoid learning "old" CMake and stick to "modern CMake" best practices, e. I played a bit with GetPrerequisites, but this finds out dependencies on existing libraries which are on disk, not on target which are being built. Sh I have the following project structure: CMakeLists. Step 10: Selecting Static or Shared Libraries¶. target_sources doesn't work with interface I'm currently transforming my C++ project from simply using a Makefile to using CMake. The source files for the library are passed as an argument to add_library(). How to do Parallel CMake ExternalProject Builds. How to create dependencies in CMake. That is, you may run the target to build the library and you may add dependencies from your project's targets to the utility target. test. I have another task: there are exist the library target, the executable test target (that provide test for library) and the main executable target with main logic. They install no artifacts but will be included in an associated EXPORT. It also ships many of its dependencies as *. It checks the usual places like /usr/lib, /usr/lib64 and the paths in PATH. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer? Share a I'd like to get the list from CMake itself before calling target_link_libraries, so that I can do some tricks if I detect that E depends on two libraries which are incompatible. If they set up everything right, all your DLLs will be automagically gathered up and installed alongside your exe. CMake: How to make dependence on package optional? 1. So if some library fails build - all dependent targets will not build. The best example I could find was CMake using itself to build. Get's all the dependencies right. link_directories ("path_to_library") to the CMakeLists file of project1. By following these steps, you can easily add external libraries to a cmake install and use them in your project. The named <target> must have been created by a command such as add_executable() or add_library() and must not be an ALIAS target. Makefiles uses the internal cmake -E cmake_depends to generate dependencies from the source files (header files in add_executable are skipped). However, you can manually propagate the object files via target_link_libraries(INTERFACE) and the $<TARGET_OBJECTS> generator expression as of 3. I also tried cmake 2. I am trying to make all of the library dependencies use the cmake dependency feature, including certain "3rd" party libraries that are not always installed by default on Linux or even available. My research showed me some ways (like adding add_directory directives, etc. In your Shared Libraries CMakeLists. Specify files on which the command depends. It did not work in Xcode with multiple architectures. 0. . a libG. In the second case, Visual Studio builds A and B at the same time in parallel, then builds C. dll. dll not exposed to the A. Adding it to PATH ensures you can run vcpkg commands directly from the shell. e. I have this process completed in CMake. add_library(OpenNI2_import SHARED IMPORTED GLOBAL) set_target Setting VCPKG_ROOT tells vcpkg where your vcpkg instance is located. Be aware, however, that the license terms may OBJECT_DEPENDS¶. A subproject for unit-tests Try to use the newly built Tutorial and ensure that it is still producing accurate square root values. cmake. txt and all cpp and header files of the lib lib2/CMakeLists. I would like to define my library in a way that targets linking to it also link to its dependencies. json): vcpkg new --application The vcpkg new command adds a vcpkg. With this you don't need to know the dependencies between the supporting libraries and - with the CMake level "includes" - you will only end-up with the targets you really use. See the cmake-generator-expressions(7) manual for available expressions. CMake Version Compatibility. This looks like the following line: TODO 1: Click to show/hide answer add_dependencies should only be used where you need to establish a dependency in the build process that would otherwise not be present. First, create a manifest file (vcpkg. Sure Have a folder called vendors where I add submodules e. But it take much time to compile these libs, and I can not manage cmake variables in my projects, and install() command make my package contains many things that I don't need. Generally, you would want each project to build “on its own” and have a “superbuild” that does ExternalProject_add to coordinate building each component in add_dependencies(A B) makes sure the generated project will make sure B is up to date before building A. I have the following situation: For a statically linked internal library, add the CMake: target_link_libraries command to the CMakeLists. 17. I had previously tried to use add_custom_command( CMake: add dependency to IMPORTED library. Use the CMake GUI to have SIFTGPU_INCLUDE_DIR pointing to the directory containing the header files and Packages provide dependency information to CMake based buildsystems. txt file. To accomplish this we need to add BUILD_SHARED_LIBS to the top-level I have my external library as shown in this picture that I create the symbolic links after: and the headers related to the library in other file: I'm working with ROS ubuntu and I need to add these add_library(libsomething STATIC) target_link_libraries(libsomething PUBLIC glog::glog) Note, all CMake magic works as expected: you need not specify glog's include directory or build artifacts for libsomething. This will import CMake targets that you can link against your own libraries or executables. 0 How to create dependencies in CMake. I need to know how to tell Project B that Project A requires various external libraries and so these need Note that this approach also saves you from the headache of order-dependency with certain linker toolchains. That does the trick for me. cc) target_include_directories(foo-core PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include> PRIVATE src) target_link_libraries(foo-core websocketpp add_library(A ) add_library(B ) add_executable(C ) target_link_libraries(C A B) In the first case, when in Visual Studio I build project C, it builds them sequentially: A, then B, then C. CMake subdirectory. Works with make -j4. Dependencies added to an imported target or an interface library are followed transitively in its place since the target itself does not build. Improve this question. It did not add an ordering dependency on the object library. This is the code I have looks something like this: # Library add_library(my_lib INTERFACE) target_link_libraries(my_lib INTERFACE other_lib) target_include_directories(my_lib Adds a target with the given name that executes the given commands. A top-level target is one created by one of the :command:`add_executable`, :command:`add_library`, or :command:`add_custom_target` commands (but not targets generated by CMake like install). 20. And, you can nearly do it with CMake 3. CMake is not intended to make changes in your source directory. The initial set of a dependent target's direct link dependencies is specified by its From the OP: i. txt, with I have an OBJECT library objlib which is linked into the main target maintarget. cpp thirdpartydep // Precompiled thirdparty dependency FindThirdPartyDep. cpp file2. In this blog post we demonstrate how to use CMake to build a large toolkit like Intel® Threading Building Blocks (TBB). The linker will not use it to determine the location of the location of libraries to link. Otherwise, place it directly into add_custom_target call. Normally I would simply use target_link_libraries(my_exec the_lib), CMake: add dependency to IMPORTED library. Interface Libraries may be listed among the targets to install. On Linux and macOS, it will use the embedded RPATH information, but Windows has no corresponding concept. Some build dependencies are optional in that the build may succeed with a different feature set if the dependency is missing, and some dependencies are required. Now, I have read a few Stack Overflow posts like this one: (CMake: include library dependencies in a static library) that suggest using CMAKE_CXX_ARCHIVE_CREATE to create an archive file. com) add_library(main OBJECT main. txt file, consider adding the PUBLIC keyword to ensure that the transitive dependencies (i. It How to make a header-only library with cmake? Like this: add_library(project INTERFACE) target_include_directories(project INTERFACE . a file, so I can just ship a big lib file to customers. A subproject for a main application. The library in question is created as a library target using add_library. Note that, on platforms where it is conventional, add_library will prepend lib when writing the library to disk. To build and add a dependency library in CMake, you first need to download the source code for the library you want to use. txt directory and executes the CMakeLists. dll thirdparty_dep1. Also, modern CMake encourages the use of target_include_directories() instead of include_directories(). # Building Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Our project has multiple source files and multiple generated header files (in addition to non-generated header files if that matters). it usually indicates a problem with the library itself or its dependencies. Packages are found with the find_package() command. Instead importing opencv as shared library: add_library(opencv_viz SHARED IMPORTED) Link your target with targets created by imported project of opnecv. Cmake: How to include dependecies properly. If a dependency is additionally used in the header files of a library (e. They say this property is depricated and recommend using INTERFACE_LINK_LIBRARIES, but in my case (cmake version 2. add_library + target_link_libraries; add_subdirectory; In modern CMake, add_dependencies option is rarely used and hence I am not adding CMake add_dependencies to the above list. 19 and after you could create b target for a dll without a lib in a single line:. How can I get cmake to recognize that some of the header files referenced in a source file need to be generated from a another file without explicitly declaring This isn't what I want, because it would require the customer to link with dependencies in my library (which doesn't' seem right to me). The software is multi platform, covering Windows, Android, Create a file named <file> that can be included into a CMake listfile with the INCLUDE command. Now if the library Foois not already using CMake, there are options: Case 1: (a) library Foo is already using CMake (b) but do NOT provide a config-file package; action: I suggest to improve their build system; Case 2: (1) library Foo is not using CMake CMake is an excellent cross-platform build tool for automatically generating Unix Makefiles, Windows NMake Makefiles, Microsoft Visual Studio® Solution projects or Apple Xcode® projects for MacOS. The dependencies added must be targets CMake already knows about (these can be ordinary executable or library targets, custom targets The 'ExternalProject_Add' function creates a custom target to drive download, update/patch, configure, build, install and test steps of an external project. The most common use of CMake is For Makefile Generators, if, for some sources, the USE_SWIG_DEPENDENCIES property is FALSE, swig_add_library does not track file dependencies, so depending on the <name>_swig_compilation custom target is required for targets which require the swig-generated files to exist. This should be the last command in add_library(A OBJECT) target_include_directories(A include/) target_sources(A PRIVATE src/a. Each argument is converted to a dependency as follows: If the argument is the name of a target (created by the add_custom_target(), add_executable(), or add_library() command) a target-level dependency is created to make sure the target is built before any target using this custom command. That's why i have the line add_dependencies(${PROJECT_NAME} xyz) in the CMakeLists. add_library(b INTERFACE "${a_DIR}/bin/b. This basically makes the In CMake projects you can split your code into chunks (libraries) and then add executables (application or tests). txt of a cmake project, and access the generated library within meson context: in your cmake subproject:. Meson is able to use both the old-style <NAME>_LIBRARIES variables as I just give the dependencies at the source level with include_directories(), at the link level with target_link_libraries() and at the CMake level with add_subdirectory(). But this add_dependencies isn't working because "abc" and "xyz" are totally different projects. CMake is part of a family of tools designed to build, test and package software. If I try to link the generated static library with target_link_libraries, CMake complains that it cannot find a rule to generate it. hpp> In fact cmake (at least up to 2. Let us see how add_subdirectory is used to add a dependency. Add it to the CMAKE_PREFIX_PATH when you call CMake, then CMake will look for your library in the passed paths, too. $ If you want to package a debug version of your software you will need to set CMAKE_INSTALL_DEBUG_LIBRARIES to ON prior to the include. On Makefile Generators and the Ninja generator an object file will be recompiled if any of the named files is newer than it. It's the equivalent to adding the following rule to a makefile. Next message (by thread): [CMake] Add Windows library dependency Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] Greetings, I'm building a project that depends on a Windows library -- Secur32. so as its dependency. Dependencies added to an IMPORTED target are followed transitively in its place since the target itself does not build. Add the fmt package as a dependency: vcpkg add port fmt [CMake] Mingw64: add a statically linked library adds libstdc++ dependency Eric Dönges doenges at mvtec. As an example, file structure: CMakeLists. This is what CMake 3. By modeling the library dependencies like here, CMake is able to figure all of that out for you. How do I link it to mylib? Just with?: Yes, with direct using of Makefile, adding linker dependency is simpler and more elegant. ) that will be compiled and linked into a library (static or shared). 1 LANGUAGES CXX) add_library(foo-core src/foobar/foobar. txt looks something like this: add_library(B STATIC b. CMake generates native makefiles and workspaces that can be used in the compiler environment of If there is more efficient way please reply. cmake: dependencies on object libraries. Add a dependency between top-level targets. boost, openssl I build the external libraries (as they come with a cmake to build in general). This target property may be set to include items in a dependent target's final set of direct link dependencies. For example, Z-lib compression. txt file in the MathFunctions directory, we create a library target called MathFunctions with add_library(). dll") So when you link a with b, a will get a dependency from the file ${a_DIR}/bin/b. Generate a manifest file and add dependencies. target_link_libraries(b a) From the docs: . Lib -- that is included in the regular library search path but is not one of the specific libraries that the compiler normally links to. so files. E. add_library(cm_lib SHARED ${SOURCES}) You should use the target in the main build as well. 3 How to package c++ dependencies on linux. Do not introduce a variable simply to hold the CMake add_library() Tutorial: From Beginner to Expert . In other words, I like to declare an external project as a dependency for a shared library. That would hard-code into installed packages the include directory paths for dependencies as found on the machine the package was made on. add_library(foo STATIC IMPORTED) Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company CMake add library as dependency by condition. 21, which allows you to get a set of dependent libraries via parameter RUNTIME_DEPENDENCY_SET in the install command. how to add prebuilt object files to executable in cmake. # Link project_warnings as "library" to use the warnings # specified in CompilerWarnings. Library dependencies are transitive by default. So in thery if you download your dependency as a subdirectory to your project you can add it and then link the library to your executable. thanks Hey, I’ll try my best to describe my issue. MyApp CMakeLists. With add_dependencies you can only add target as created by add_custom_target. cpp file4. 1. cu OPTIONS -arch sm_20) That will compile the file but build an executable cuda. cpp ) add_library(library2 SHARED file3. Additional files on which a compiled object file depends. ovggq enl vxivck sqju dfgrl jccqp sewi mjkqyf zsnkb lujo