This can be any valid CMake name, and the filename for the compiled library will be that value in your build directory. First : Static and shared libraries are built in two different ways. It supports compiling the library either as static or shared. This is an example linking SDL2. For example, the code We could compile a static library with hidden symbols, then create a shared library based on this static library, and link the tests to the static . It provides cross-platform macros for exporting library symbols, supporting Windows and Linux. And vice verse : A shared library lib.so renamed to lib.a An object.o static cannot be used for a shared library. When another target links to one of the libraries, CMake repeats the entire connected component. | CMakeLists.txt (1) | main.cpp | cudalib/ | CMakeLists.txt (2) | cppfunction.cpp | cudafunction.cu | cudalib.h. As I know, CMake doesn't allow to mix STATIC and SHARED libraries. Using ar or library tools to combine the static libraries seems to be the only way to go. Accepted answer. The open source dependencies could be also shared libraries, or static libraries. Because it is a single file to be built, use of link commands are simpler than shared . What are shared and static libraries in CMake? Specify libraries or flags to use when linking any targets created later in the current directory or below by commands such as add_executable () or add_library (). See this answer for what your options are to deal with this. For example, in CMakeList.txt under feature_1 directory, it has a line to create static library target: add_library (feature_1, STATIC, $ {FEATURE_1_SRCS}) > 4. You are targeting the link library wrongly. SHARED libraries are linked dynamically and loaded at runtime. If you still have these declarations in place when trying to compile and link the library statically however, you might get those errors you mention I think Solution 1: If you are bound to create a static library, the solution you linked in your original post is probably the best ( CMake: include library dependencies in a static library ). Here I'm facing two issues: I'm not necessarily using Windows, I might need to link against a .a file. Currently you're compiling your library against the static and Main.obj against the DLL runtime. and finally, yes, you need to specify PRIVATE <static libs> when linking your shared library, so the linker command line for your executable wouldn't have any static libs. MODULE libraries are plugins that are not linked into other targets but may be loaded dynamically at runtime using dlopen-like functionality. The list of standard modules is in the official documentation In case there is no standard module for your external library, you should write your own. So the import library for PocoFoundation.dll will be named PocoFoundation.lib, while the static library using static runtimes . Note The target_link_libraries () command should be preferred whenever possible. You do this with linker flag: -l<library name>. and I am trying to build the content of the cudalib folder as a static library that is afterwards linked to by the main project. Currently I'm using the shared libraries but when linked to static library it's very fast, which I have experienced in Nsight editor. If your staticfoo library is used solely as part of other libraries/executables, you can define it as. If a library however is marked as "build_standalone", we only build the .sa form. . Solution 2 target_link_libraries(my_target PRIVATE lib_name${CMAKE_STATIC_LIBRARY_SUFFIX}) They are usually faster than the shared libraries because a set of commonly used object files is put into a single library executable file. STATIC libraries are archives of object files for use when linking other targets. Poco static libraries can be distinguished from the import libraries for DLLs by the file name - static libs have "mt" ("mtd" for debug binaries, "md" and "mdd" when runtime library DLLs are used) appended to the name. As a final step, it's recommended to create and install a so called pkg-config file. One can build multiple executables without the need to recompile the file. 1 Like Link Static CUDA Library using CMake. Firstly, the first parameter to add_library is the name of the library. Some compilers allow you to do this (e.g. I don't understand where it can appear at all when linking .exe, I connect the static libraries IMGUI and IMGUI_GLFW to Core 1 time, the Core - shared library and it is added as a target_link in the root directory, from where the conflict between Core and IMGUI is created, if IMGUI to .the exe is not linked 2 times for sure This is a pretty popular question on Stack Overflow and all the answers . Historically, libraries could only be static. The library dependency graph is normally acyclic (a DAG), but in the case of mutually-dependent STATIC libraries CMake allows the graph to contain cycles (strongly connected components). But I'm developing this in Ubuntu 14.04, cuda 7.0 and cmake. Although this question is old. This process usually works if the static library has no CUDA code . The manual of MSVC_RUNTIME_LIBRARY shows all 4 possible values. It uses modern CMake. MS Visual Studio has an option), but others don't, which is why CMake also won't allow it. I have the following layout: Home - Questions - CMake: how create a single shared library from all static libraries of subprojects? I have attached my CmakeLists.txt herewith. CMake is frequently used in compiling open-source and commercial projects. (I forget what we do on HP-UX, where .sa means shared archive; we have very broad platform support also). builds some shared libraries and links static ones into shared builds an executable, links it to shared libraries What I've managed to do with CMake: build some static libraries - add_library (staticfoo <src>) build some shared libraries - add_library (sharedfoo SHARED <src>) and link them - target_link_libraries (sharedfoo staticfoo) Where the library name is the name of the shared library, minus the first lib part and minus the .so file extension. However, this is fundamentally incompatible with CMake's model of linking, which admits no properties on the link itself. Every user and application can now potentially use the library. Instead, find_library might have some top-level control for whether to prefer finding static or shared libraries. 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. To accomplish this we need to add BUILD_SHARED_LIBS to the top-level CMakeLists.txt. The solution is simple: When linking a shared library to your C application, you need to inform the GCC toolchain about the library you want to link. See the target_link_libraries () command for meaning of arguments. Both in release, not debug mode. It compiles projects with compilers like GCC, Clang, Intel, MS Visual C++. CMake comes with numerous modules that aid in finding various well-known libraries and packages. CMake utilizes build-systems such as Ninja, Linux make, Visual Studio, and Xcode. Create and install the shared library's pkg-config file with CMake. CMake is a cross-platform software for building projects written in C, C++, Fortran, CUDA and so on. Under each subdirectory, there is a CMakeList.txt to compile a static library for each feature. Failure to find it results in a hard failure find_static_library (tcmalloc_minimal TCMALLOC) You can then use this variable in your call to target_link_libraries and be sure you're linking against the static version target_link_libraries ($ {BIN_NAME} optimized $ {TCMALLOC}) Here you can see the result: $ make VERBOSE=1 | grep tcmalloc To link external libraries, best practice is to use or create FindModule for given external library. We name the static libraries like foo.a.sa or foo.lib.sa. At this point we built the shared library and installed it system-wide, with the help of CMake. CMake generally prefers to link libraries via full path anyways, so -l being ambiguous as to which gets picked is not the place to fix it. target_link_libraries (test2 library.dll) is wrong. jtxa (Josef Angstenberger) August 20, 2022, 2:17pm #2 The runtime of all objects (including those from libs) must match. In the main CMakeList.txt. cmake_minimum_required (VERSION 3.12) project (GraphicTest) set (CMAKE_CXX_STANDARD 11) include_directories ("$ {PROJECT_SOURCE_DIR}/SDL") add . For any "library" by default we make a static library and link a shared library. You cannot link libraries into libraries directly. If you can build with shared libraries, it means that you have this in place (unless you use a .def file or use CMake's automated way of creating it ). Static and shared libraries are typically produced from the same set of sources, too, so new CMake users sometimes expect that a single call to add_library will provide whatever mix of types they want. The project can be found at GitHub: % [ github.com/ashaduri/demo-library-simple] Libraries - A Quick Refresher A library can be either static or shared. I need to link cuda nppi static library (libnppi_static.a) to my runtime of the code. The most common decision is to build as a shared library (BUILD_SHARED_LIBS set to TRUE in the CMake script). I've seen on StackOverflow that in order to link to a static library all that it's needed is to provide the full path to a (in the Windows case) .lib file. Different ways to compile a static library for each feature I need to link cuda static. Not linked into other targets but may be loaded dynamically at runtime using dlopen-like functionality shows all 4 possible.. 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