On Oct 26, 2016, at 3:04 PM, Amit Aides notifications@github.com wrote: Hi, I am trying to (cmake) compile a binding to a library that uses a another library (dlib). So the import library for PocoFoundation.dll will be named PocoFoundation.lib, while the static library using static runtimes . Greetings, In my CMakeLists.txt I declare a shared library target (for Android/JNI): add_library(native-lib SHARED native-lib.cpp) That depends on an external static library, which then depends upon a bunch of other static libraries (discoverable through pkg-config). SHARED means a shared library, you can also make a static library with STATIC keyword, or an object file with OBJECT keyword. 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 ). The files created by hdf5 in the $ {INSTALL_DIR}/shared/cmake folder are for use by the find_package cmake command. One can build multiple executables without the need to recompile the file. cmake_minimum_required (VERSION 3.12) project (GraphicTest) set (CMAKE_CXX_STANDARD 11) include_directories ("$ {PROJECT_SOURCE_DIR}/SDL") add . This is a pretty popular question on Stack Overflow and all the answers . For example, a Windows resource DLL or a managed C++/CLI DLL that exports no unmanaged symbols would need to be a MODULE library. This process usually works if the static library has no CUDA code . Although this question is old. Link Static CUDA Library using CMake. Background A shared library packs compiled code of functionality that the developer wants to share with other developers. Every user and application can now potentially use the library. 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 ). CMake comes with numerous modules that aid in finding various well-known libraries and packages. To link external libraries, best practice is to use or create FindModule for given external library. Instead, CMake makes sure to link both static library files libB and libA when e.g. I have been able to make this work by manually declaring all the dependencies, direct + transitive through a series of: add . To accomplish this we need to add BUILD_SHARED_LIBS to the top-level CMakeLists.txt. `target_link_libraries (C1 EXECUTABLE PUBLIC B)` (Instead of an executable exeC1 you could have created a shared library libC1 instead. Using ar or library tools to combine the static libraries seems to be the only way to go. First : Static and shared libraries are built in two different ways. Here's my situation: I'm trying to create a cross platform project that depends on multiple libraries, I decided that it would be nice to compile the libraries rather than linking it's binaries. find_package (HDF5 NAMES hdf5 COMPONENTS C shared) to use the shared libraries find_package (HDF5 NAMES hdf5 COMPONENTS C static) to use the static libraries 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. However, you can have a dynamic pybind11 module that links to a static library. Accepted answer. Did I miss anything? However, this is fundamentally incompatible with CMake's model of linking, which admits no properties on the link itself. In this case, the FindThreads module is what you need. In the main CMakeList.txt. 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. If a library does not export any symbols, it must not be declared as a SHARED library. 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 target_link_libraries (test2 library.dll) is wrong. 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. Note The target_link_libraries () command should be preferred whenever possible. It gets more complicated when the consumer itself might have switchable behavior which can select whether it wants to consume static or shared libs. Did you spot any errors in the post? This is an example linking SDL2. : For sake of simplicity, in this article I am not covering C++20 modules, link-time optimization, or import libraries. Is it possible to set pybind11 to use . A single library target can be built as static or shared, but not both. As a final step, it's recommended to create and install a so called pkg-config file. Shared library The most common decision is to build as a shared library ( BUILD_SHARED_LIBS set to TRUE in the CMake script). Hello! Best, Wenzel. 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 : In reality, unless used, global symbols in static libraries may be optimized out by the linker. 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. Under each subdirectory, there is a CMakeList.txt to compile a static library for each feature. If they are shared libraries you need to take care of deployment. 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. Because it is a single file to be built, use of link commands are simpler than shared . Create and install the shared library's pkg-config file with CMake. When another target links to one of the libraries, CMake repeats the entire connected component. They are usually faster than the shared libraries because a set of commonly used object files is put into a single library executable file. 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 (). It covers three scenarios: (1) Calling GCC directly from the terminal, building with a Makefile and auto-generating the build environment with CMake. 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. Shared library files usually have .dll (Windows), .so (Linux), or .dylib (macOS) extensions. Finally, when building your projects, I recommend using static by default. 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) This presents problems for some consumers who specifically need one or the other. 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). I'm getting started with CMake, and loving the potential of it, thought having a though time finding understandable documentation or guides. A SHARED or STATIC library may be marked with the FRAMEWORK target property to create an OS X Framework. | CMakeLists.txt (1) | main.cpp | cudalib/ | CMakeLists.txt (2) | cppfunction.cpp | cudafunction.cu | cudalib.h. 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 target_link_libraries (): to tell CMake that app is dependent on geo library. Also, for installing, prefer to use the GNUInstallDirs module. creating an executable exeC1 using target C1 which just links (via `target_link_libraries`) to target B. You should not be manually creating imported static libraries for system libraries! And vice verse : A shared library lib.so renamed to lib.a The correct commands are find_library or (better) find_package. At this point we built the shared library and installed it system-wide, with the help of CMake. An object.o static cannot be used for a shared library. However, CMake generates static libraries otherwise. Projects that want to support such . Historically, libraries could only be static. You are targeting the link library wrongly. Unless you have a specific reason to use shared or module libraries, you can avoid compatibility issues when linking outdated shared libraries. This library is compiled for static linking. See the target_link_libraries () command for meaning of arguments. target_include_directories (): is for making source files aware of the location of private headers relative to the project directory. The open source dependencies could be also shared libraries, or static libraries. For example, the code ) find_package packs compiled code of functionality that the developer wants to share with other developers repeats entire. 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