1 Like . 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) We name the static libraries like foo.a.sa or foo.lib.sa. MODULE libraries are plugins that are not linked into other targets but may be loaded dynamically at runtime using dlopen-like functionality. It uses modern CMake. This process usually works if the static library has no CUDA code . To link external libraries, best practice is to use or create FindModule for given external library. Some compilers allow you to do this (e.g. CMake is frequently used in compiling open-source and commercial projects. I have attached my CmakeLists.txt herewith. 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. target_link_libraries (test2 library.dll) is wrong. Under each subdirectory, there is a CMakeList.txt to compile a static library for each feature. You do this with linker flag: -l<library name>. 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. Every user and application can now potentially use the library. In the main CMakeList.txt. Here I'm facing two issues: I'm not necessarily using Windows, I might need to link against a .a file. Link Static CUDA Library using CMake. Note The target_link_libraries () command should be preferred whenever possible. I have the following layout: Home - Questions - CMake: how create a single shared library from all static libraries of subprojects? Currently you're compiling your library against the static and Main.obj against the DLL runtime. As a final step, it's recommended to create and install a so called pkg-config file. You are targeting the link library wrongly. Using ar or library tools to combine the static libraries seems to be the only way to go. This can be any valid CMake name, and the filename for the compiled library will be that value in your build directory. CMake utilizes build-systems such as Ninja, Linux make, Visual Studio, and Xcode. What are shared and static libraries in CMake? CMake is a cross-platform software for building projects written in C, C++, Fortran, CUDA and so on. Instead, find_library might have some top-level control for whether to prefer finding static or shared libraries. Both in release, not debug mode. So the import library for PocoFoundation.dll will be named PocoFoundation.lib, while the static library using static runtimes . 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. They are usually faster than the shared libraries because a set of commonly used object files is put into a single library executable file. It compiles projects with compilers like GCC, Clang, Intel, MS Visual C++. Where the library name is the name of the shared library, minus the first lib part and minus the .so file extension. First : Static and shared libraries are built in two different ways. Because it is a single file to be built, use of link commands are simpler than shared . It provides cross-platform macros for exporting library symbols, supporting Windows and Linux. At this point we built the shared library and installed it system-wide, with the help of CMake. Create and install the shared library's pkg-config file with CMake. To accomplish this we need to add BUILD_SHARED_LIBS to the top-level CMakeLists.txt. I need to link cuda nppi static library (libnppi_static.a) to my runtime of the code. 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. The most common decision is to build as a shared library (BUILD_SHARED_LIBS set to TRUE in the CMake script). The open source dependencies could be also shared libraries, or static libraries. 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 . Firstly, the first parameter to add_library is the name of the library. You cannot link libraries into libraries directly. For example, the code (I forget what we do on HP-UX, where .sa means shared archive; we have very broad platform support also). SHARED libraries are linked dynamically and loaded at runtime. 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). STATIC libraries are archives of object files for use when linking other targets. This is an example linking SDL2. 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 For any "library" by default we make a static library and link a shared library. But I'm developing this in Ubuntu 14.04, cuda 7.0 and cmake. MS Visual Studio has an option), but others don't, which is why CMake also won't allow it. 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. However, this is fundamentally incompatible with CMake's model of linking, which admits no properties on the link itself. 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. And vice verse : A shared library lib.so renamed to lib.a 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 ). When another target links to one of the libraries, CMake repeats the entire connected component. As I know, CMake doesn't allow to mix STATIC and SHARED libraries. 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. 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 (). 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. Solution 2 target_link_libraries(my_target PRIVATE lib_name${CMAKE_STATIC_LIBRARY_SUFFIX}) | CMakeLists.txt (1) | main.cpp | cudalib/ | CMakeLists.txt (2) | cppfunction.cpp | cudafunction.cu | cudalib.h. and I am trying to build the content of the cudalib folder as a static library that is afterwards linked to by the main project. It supports compiling the library either as static or shared. Historically, libraries could only be static. See the target_link_libraries () command for meaning of arguments. See this answer for what your options are to deal with this. One can build multiple executables without the need to recompile the file. jtxa (Josef Angstenberger) August 20, 2022, 2:17pm #2 The runtime of all objects (including those from libs) must match. If your staticfoo library is used solely as part of other libraries/executables, you can define it as. Accepted answer. CMake comes with numerous modules that aid in finding various well-known libraries and packages. This is a pretty popular question on Stack Overflow and all the answers . If you can build with shared libraries, it means that you have this in place (unless you use a .def file or use CMake's automated way of creating it ). Currently I'm using the shared libraries but when linked to static library it's very fast, which I have experienced in Nsight editor. The manual of MSVC_RUNTIME_LIBRARY shows all 4 possible values. The list of standard modules is in the official documentation In case there is no standard module for your external library, you should write your own. If you still have these declarations in place when trying to compile and link the library statically however, you might get those errors you mention I think Static and shared libraries are typically produced from the same set of sources, too, so new CMake users sometimes expect that a single call to add_library will provide whatever mix of types they want. cmake_minimum_required (VERSION 3.12) project (GraphicTest) set (CMAKE_CXX_STANDARD 11) include_directories ("$ {PROJECT_SOURCE_DIR}/SDL") add . Although this question is old. An object.o static cannot be used for a shared library. If a library however is marked as "build_standalone", we only build the .sa form. 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