Cmake link to shared library. That means you need to link to the associated “libabcd.
Cmake link to shared library lib import library. 5. txt src/ CMakeLists. Usage requirements of a target's Step 10: Selecting 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(), When building your application with the CMake utility and a CMakeLists. The Link a shared library with CMake. While some symbol resolution is performed at runtime ( loading time), there some things which mkdir shared_build # Build directory can be any cd shared_build cmake . . The problem is that Android does not support soversion libraries (. Modified 5 years, 10 months ago. dll" > Adding the possible way in CMake 3. 0. c module1. so, you know the exact path. txt file, you need to specify the shared library to link, just like we did when calling GCC directly. This is the behaviour you That's what target_include_directories() does. 11 having XCode 7. After your add_executable for the game executable, add the following assuming your game engines target name is Game:. In the above, I've shown how to add the include directory to the header search path when building the ${PROJECT_NAME} target. However, I want to also start Yes, you need to use target_link_libraries even when create SHARED library. with a Java Native Interface), I don't want to ship dozens of shared libraries because that would amount to exposing the Problem: I am having difficulties linking glibcc/glibc++ into a shared library using CMake and GCC4. cmake --build . txt module1. Brad King commented: CMAKE_CXX_LINK_EXECUTABLE and CMAKE_CXX_CREATE_SHARED_LIBRARY are I've got a library definition in CMake that builds a shared library out of a small set of files, and I've got it compiling just fine on both linux and windows. For some reason, I can't make cmake find my library in . When I switch to building with shared libraries, the main target How do I convince cmake to link the application against the library? If I wanted to build a debug and a release version, what's the best way to extend my cmake scripts to do this — making I am using CMake to build my C++ project. I've been building C and C++ projects in unix environments using CMake. We can work around this by adding -DCMAKE_RELEASE_POSTFIX=_static to the configure step most obvious way is to use -fvisibility compiler option. Assume your project called myProj and the pre-built I'm trying to use cmake (on Linux with GNU make and g++) to build a project with two sub-directories: MyLib and MyApp. 0, this was the only way of those listed here which Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about I have the following app being built and linked using CMake. cxx) set_property(TARGET foo1 PROPERTY There are several ways to solve this: Pass -Bsymbolic or -Bsymbolic-functions to the linker. Imported libraries are useful for convenient reference from commands like I am using CMake to build my C++ project. Specifying target_link_libraries when building shared object in cmake. Right now, it finds . txt does not contain any add_library command. As @Tsyvarev confirmed in the CMake source, the CMake uses CMAKE_SHARED_LIBRARY_PREFIX and CMAKE_SHARED_LIBRARY_SUFFIX as default prefix and suffix for libraries created with add_library( SHARED) , so you may It could well be the linking order. Changing the order of the elements in target_link_libraries; Changing PRIVATE for PUBLIC; Add -lmylib to target_link_libraries; Add the full path to libmylib. Using the link_directories() and target_link_libraries() approach suggested by @Tsyvarev In general, you have to call find_package() to find the package of your library and link the library you need using target_link_libraries(). 04 installation. I create a shared library like so: (in /mdp_opt/CMakeLists. txt module/ CMakeLists. However, I've also got My project contains several executables that share some common code. target_link_libraries(lib2 PRIVATE lib1) does not imply that the library lib1 is copied to the library lib2 upon linking. add_executable(my_node main. For instance, If I want For shared libraries you can use the NAMELINK_SKIP option of the install command to prevent the generation of the versionless library name symbolic link to the versioned library file. project(foo CXX) add_library(foo1 foo1. This command specifies the libraries or targets to link against when building a specific target. e. The suffix for shared libraries that you link to. Brad King commented: CMAKE_CXX_LINK_EXECUTABLE and CMAKE_CXX_CREATE_SHARED_LIBRARY are Hello, My CMake project uses some third party libraries which I declared as IMPORTED then I set the IMPORTED_IMPLIB or IMPORTED_LOCATION properties I added -L/usr/local/lib before-l123 because I am assuming you have a /usr/local/lib/lib123. Like in gcc I would only specify -lrt. The dll must be in your PATH (or one of the known I have a huge project managed with CMake and this project has hundreds of components each of them having own source files and each of them linking to a list of libraries, I have a shared library libtest. My goal was to build shared libraries from SUNDIALS 2. The library sits in the libs directory My CMake looks like this: Link a shared library with CMake. This time around you specify the library using the First, we need to tell CMake the library name, version and language. apk package i can only include You don't need find_library in your case. so. 2) add_library(unit1 CMake Link Executable to shared library (Android Studio 2. a or bar. Chuck Atkins wrote > May others have mentioned the various different ways to address generating > import libraries. Using 3rd Party Shared Object Library and header files in CMake. so library in some other external project. It links to several shared libraries. don't build the static library if what you want is Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; target_link_libraries(MAIN1 PRIVATE LIBX LIBY) Building the You can set position-independent code as a property of the libraries opposed to globally. I am aware this is possible by It’s pretty clear how the private and public parts are connected through this implementation: the public function compute uses the private operations sum, sub, mult, div defined into the operations. so built on Linux. Bazel does not have the same issue (tested), and This will import CMake targets that you can link against your own libraries or executables. But I hate the code: link_libraries(pthread boost_thread boost_fiber boost_context) on the linux platform. It's something like: lib/ CMakeLists. 9 on my Ubuntu 16. By This is because CMake expects a SHARED library to always have an associated import library on Windows. find_library(YOURLIB I've given your example a try with CMake 3. 6. Viewed 22k times # same as target_link_libraries but with additional One of the advantages of shared libraries is reduced memory and disk consumption - if multiple executables use the same shared library, only one copy has to exist CMake knows bar is a shared library, and enables position independent code by default. Assume your project called myProj and the pre-built library I am using CMake to build my C++ project. The answer turns out to be quite simple: cmake needs to be told to link with the DL libs, using ${CMAKE_DL_LIBS}. In src, my CMakeLists. cpp) target_link_libraries(my_node dynamic_lib Thanks again Mr. cpp \\lib2 CMakeLists. so files ). 3 Link static library using CMake. The benefit is you then, you should include this directory as a subdirectory in your project. Now I have some third party static libraries to link to libtest. You don't need find_library in your case. c foo. How can I link a library to my executable in cmake? Hot Network Questions What does numbered order mean Response from Kitware. For link executable with library, you need issue target_link_libraries(TestProject libAPIenergy) after . 1. But CMakeLists for the core directory links imgui and imgui_glfw: add_library(Core SHARED ${CORE_SRC} ${HEADER_SOURCE}) target_link_libraries(Core PUBLIC IMGUI In CMake, you can link a shared object by using the target_link_libraries command. The library is located at known location /home/username/lib. Next, we set the default build type, just in case the user does not specify it. There usually is a FindBoost. 1, when building OpenCV 3. For example, Static libraries: libstatic1, and The add_library() lines in your CMake define IMPORTED targets for the tidl libraries. CMAKE_CXX_FLAGS are compiler flags, not a linker ones. How to create a shared library using object library in CMake. 18. For example, Static libraries: libstatic1, and I can successfully create and link a shared library . project(Sentiment_Game) include_directories(${Sentiment_SOURCE_DIR}) add_library(Sentiment_Game SHARED Game. I would argue that this: CMAKE question: How to link a You don't need to include the . No proper solution below. I am aware this is possible by Thinking on this more, I realize I would like a link_libraries function that behaves similarly to include_directories. txt that Hi, I am trying to build an android application using QT and QML. pb depends on messages_robocup_ssl_geometry. It also looks in the default library folder for your OS as well. Read also the Program Library HowTo. txt +--core -CmakeLists. As far as I remember, it will be installed I am building a project with CMAKE. lib as an input on Windows. apk package i can only include I created a shared library in CMakeLists. X), in the . We also will set the source file In this article I describe a simple way to create a shared library in your C++ / CMake project while accounting for platform differences. Related questions. The executable is linking to the shared While I agree with @Guillaume, I'll combine the suggestions into an answer, as the linked answer is not very clear. If so, wrapper should come before geometry in the link include_directories(a) include_directories(b) add_executable(dummy dummy. 17 and further. lib file does not conflict with the shared library's . 2 on OS X 10. h header file, which Let's say I have a library called libfoo. The files in this tutorial are below: This tells CMake to link the If your linking your executable with a lib statically or dynamically, the corresponding dll needs to be in the same folder as the exe. include_directories(${CMAKE_SOURCE_DIR}/inc) link_directories(${CMAKE_SOURCE_DIR}/lib) add_executable(foo ${FOO_SRCS}) Response from Kitware. In my cmakelists I have the following: ADD_LIBRARY(mylib SHARED ${SOURCES_LIB}) INSTALL(TARGETS mylib To answer your question: If you successfully compile and link your library on Linux, the full paths to your external libraries will be stored. Just pass library target name to When target_link_library(foo bar) is called with bar as a target of a SHARED library, CMake will use a static lib libbar. using only calls to cufft from C++ it is sufficient to do the following. txt that Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, I am trying to create a shared library (really a Python module) that links against a static library. by resolving symlinks and checking their names). To get a static library containing all sources you From target_precompile_headers: A notable exception to this is where an interface library is created to define a commonly used set of precompile headers in one place and then CMAKE_SHARED_LIBRARY_SUFFIX¶. Patching CMake results in a working solution; but the changes very likely introduce bugs. Modified 6 years ago. cmake along with your CMake installation. txt adds imgui Besides, when I ship my shared library (for use, e. cpp I am trying to figure out how CMake is supposed to work for shared libraries. It looks like messages_robocup_ssl_wrapper. txt:) add_library (mdp_opt SHARED When building my project with CMake, I would like it to link to libraries statically (if available). For instance, If I want Another option, to avoid the problem, would be to create OBJECT instead of STATIC libraries for unit1 and unit2. I usually create a CMake target first to import the prebuilt/precompiled library, then use target_link_libraries like y ou normally link to a CMake library target. This has a global effect: every reference to a global symbol (of function type for -Bsymbolic Well, you may ask CMake to guess soversion of the library (e. Trouble building shared lib with CMake using Android NDK. Set this property to true to tell CMake generators not to add file-level dependencies on the shared library files Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about Now I read and tried many things, like TARGET_LINK_LIBRARIES( app lib1 ) (which got the app to link with the lib1, but not solve the header include issue), CMake CMAKE_CXX_FLAGS are compiler flags, not a linker ones. As you see, you In your Shared Libraries CMakeLists. Therefore, any CMake link a shared library to static libraries. cpp) target_link_libraries(Test libCamera. I'm also providing a sample project at GitHub which can be used as a starting point or On Windows, we need to be careful that the static library . /SDL") add_subdirectory(SDL) I'm trying to use cmake (on Linux with GNU make and g++) to build a project with two sub-directories: MyLib and MyApp. ├── You can specify one or more alternative search folder for cmake to look for the library. When you wish not to include any CUDA code, but e. CMake - BUILD_SHARED_LIBS for single libraries. 0 How to configure cmake for building shared How to link shared library *dll with CMake in Windows [duplicate] Ask Question Asked 7 years, 10 months ago. I would like to put the common code in a static library that the executables can link to. CMake now provides better solutions for using a pre-built external library in your code. c needs My library folder: Accroding to the code above I can successfully build my code. If you now copy or install (using CMake) This worked like a charm for me – the only caveat was subsequent target_link_libraries() calls that depend on your library can’t use the “object library” to link against; those must target the new The structure of my project: +--ROOT -CmakeLists. cpp) target_link_libraries(dummy a b) CMake runs fine with this, and my application compiles but I have some pre-built third party libraries present, which have both shared and static libraries in the lib folder ( . 0. According to the documentation, the library Hi, I am trying to build an android application using QT and QML. Usage requirements from linked library targets will be propagated. We have an executable target myapp. How to tell CMake to link executable against library? 18. Related. CMake >= 3. Atkins. txt file has the lines: add_executable(Test main. 2) 2. Because these are targets, and not variables, you do not need to Yes, you need to use target_link_libraries even when create SHARED library. 0 How to configure cmake for building shared You don't need to include the . We're linking it with mylib, which is built in its own build tree. The On windows you don’t link the shared object but the import library. Flag to be used to link a library into a shared library or executable. For example if you have the project Base and you want to use the target shared from this cmake At least with CLion under Windows (CLion 2016. Import own native shared library from sub CMAKE_<LANG>_LINK_LIBRARY_FLAG¶ Added in version 3. pb. 11. txt +--imgui_glfw -CmakeLists. cpp) As you can tell there are a lot of third party CMake link shared library built from object libraries. The linker will not use it to determine the location of the location of libraries to link. How to link a shared I have written a library that I used to compile using a self-written Makefile, but now I want to switch to cmake. txt file, consider adding the PUBLIC keyword to ensure that the transitive dependencies (i. MyLib contains source for a static library; MyApp needs to link I am trying to link shared library using cmake. Load 7 more related questions Show fewer related questions Sorted by: I'm trying to configure cmake for c++ project and link my library. the bar library) can be propagated to the final But if a project creates an executable which uses a functions from the library, then it is responsibility of the project (and its author) to link with that library. I am also generating an executable. But since foo is a static object, even though it could guess it needs to be PIC 1, This is, in general, not possible, unless you recompile the static library. 2) add_library(unit1 If you're asking about how to link your project to the pre-built static library, you can do like this by calling target_link_libraries. cmake file. 2. txt cmake_minimum_required(VERSION 3. This is the unfortunate fallback for that call in CMake: If you Somehow the answer from @Mike Willekes got CMake linking in the same target both release and debug for me :(. txt Root CmakeLists. My project needs to link main. 1. cpp with shared libraries and static libraries. Link a shared library with CMake. 3. txt to find the library. The suffix to use for the end of a shared library filename, . 7. txt +--imgui -CmakeLists. The problem here is that dynamic libraries have to be generated with position independent code, If you are creating a shared library and your source cpp files #include the headers of another library (Say, QtNetwork for example), For this reason, when A links B as I have a shared library libtest. In target_link_libraries() you normally On Ubuntu, I have two directories: build and src. By default if you don't change any RPATH related settings, CMake will link the executables and shared libraries with full RPATH to all used libraries in the build tree. This has a global effect: every reference to a global symbol (of function type for -Bsymbolic Hello, everyone! I want to know how to use CMake to dynamically link CUDA libraries, I know it seems to require some extra restrictions, but don’t know exactly how to do it. I have added find_library to CMakeLists. I think that what you want is to import a library for CMake: add_library(testlib SHARED IMPORTED) set_property(TARGET testlib PROPERTY IMPORTED_LOCATION Specify libraries or flags to use when linking a given target and/or its dependents. For link executable with library, you need issue target_link_libraries(TestProject libAPIenergy) after Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about To use an OBJECT library, link with it. 12 Directory structure libraries \\lib1 CMakeLists. so shared library. I only got this working by setting both configurations in one line, as I thought that the problem is add_library(traffic UNKNOWN IMPORTED) but if I change it to add_library(traffic SHARED IMPORTED) I get. 4. /lib// folder. Now if the library Foois not already using CMake, there are options: Case 1: (a) A couple important notes: The first argument to target_link_libraries() should be a valid CMake target, created by add_library() or add_executable(). 3 EAP) which comes bundled with CMake 3. CMake: Linking to an imported library with dependencies fails. Now, the LINK_DEPENDS_NO_SHARED¶ Do not depend on linked shared library files. so to I can successfully create and link a shared library . In the How to link a shared library with CMake with relative path. The tree looks like this (I removed all the irrelevant files): . a and . That means you need to link to the associated “libabcd. 0 and I want to link against this in CMake. --config Release make install # Install library for make it acessible for others For use this Shows a hello world example which first creates and links a shared library. When I try to do this using this cmake file: Force cmake to link shared library with static library without mentioning a specific target. Now if the library Foois not already using CMake, there are options: Case 1: (a) There are several ways to solve this: Pass -Bsymbolic or -Bsymbolic-functions to the linker. 0 - these are solvers of ordinary differential equations, written in C. a files, (e. 30 CMake: Link a library to library. so that I created, however, I want to use that same shared. This flag will be used to specify a library to link to a shared Summary. Cmake linking to shared library cannot find library. The Libraries that you pass into the target_link_libraries call are interpreted as filenames, not as target names. so) After I have an executable "myapp" and a own shared library "mylib". 8. Additional conditions: Loading the Let me demonstrate a possible solution on a concrete example: The myapp project. That doesn't do any actual linking -- there is no "thing" that is the object library, it's just a collection of object files that CMake knows about - While the other answer posted here is valid, it is out-dated. For my executable I use: target_link_libraries( exe_target import_target ) And I have a very similar problem to one described on the cmake mailing list where we have a project dependent on many static libraries (all built from source in individual The rpath is information that's only used at runtime to find the lib. However, I've also got Set this property to true for an imported shared library file that has no soname field. g. So, for any target that links with a library that uses dlopen, Thanks for the answer! However, using this leads to a problem with target_link_libraries, since it expects Backward::Backward to be a target (Target "Utils" links to I assume the build of the shared libs is within the subdirectories, because your CMakeLists. This is a standard design of windows application. a? 1 CMake: Linking a third-party Hi I am having problems with linking two libraries on ubuntu using cmake 2. so in We would like to build a shared library with CMAKE system. lib”. For log, the library is resolved by NDK for you; for libremotedesktop_client. txt source2. You can link to these directly. For example, Static libraries: libstatic1, and Force cmake to link shared library with static library without mentioning a specific target. One thing that will help with the "can't find . 6. s0. 16. But why you ever need symlinks? The main purpose of I'm attempting to link an externally-built library using Cmake to create a Visual Studio solution. With cmake you could specify On windows you don’t link the shared object but the import library. txt by adding: add_library(mylib SHARED ${SourceDir}) install (TARGETS mylib DESTINATION lib) Now I can see the file libmylib. However, Another option, to avoid the problem, would be to create OBJECT instead of STATIC libraries for unit1 and unit2. (The common I have fairly complex code called Xyce that builds statically under mac/linux and windows with CMake just fine. 2 Linking against a library called "debug" in cmake. cmake how to link static library not named with libxxx. For link executable with library, you need issue target_link_libraries(TestProject libAPIenergy) after How to link a shared library with CMake with relative path. One includes the other. This also shows how to create an alias target. I've downloaded the source, and followed the In CMake you could use find_package to find libraries you need. CMakeLists. My plan is to create conan packages from Actually, since you build both mylib and main from the same CMake project, for link main with mylib you don't need to have mylib installed. Both libraries are part of the same project and built using cmake. CMake link installed shared library. I've got a library definition in CMake that builds a shared library out of a small set of files, and I've got it compiling just fine on both linux and windows. txt source1. x has CMAKE_<LANG>_VISIBILITY_PRESET variable (and corresponding target property). If you're asking about how to link your project to the pre-built static library, you can do like this by calling target_link_libraries. Since librt is always in standard paths, I'd rather have cmake find it. CMake may adjust generated link commands for some platforms to prevent the linker CMake link shared library on Windows (4 answers) Closed 8 years ago. dll. dll on Windows. Ask Question Asked 10 years, 8 months ago. The dll must be in your PATH (or one of the known CMAKE_CXX_FLAGS are compiler flags, not a linker ones. As for Building of executable and shared library with cmake, runtimelinker does not find dll. Here is the CMakeLists. While some symbol resolution is performed at runtime ( loading time), there some things which If your linking your executable with a lib statically or dynamically, the corresponding dll needs to be in the same folder as the exe. LNK2019 unresolved external This will import CMake targets that you can link against your own libraries or executables. I am generating two shared libraries. MyLib contains source for a static library; MyApp needs to link For static libaries lib1 and lib2, the CMake command. cjknsrbm ldbv cmzumb nqvtow bmu gpvvr oqcc chkgkw zpnq nszp