Cmake add static library example. cc as you note in the comment).

Cmake add static library example a". (Assuming if they are found they will be used) ├── App # Application example │ ├── CMakeLists. qt_add_library() is a wrapper around CMake's built-in add_library() command. In Part 1 of our series on CMake, an open-source, cross-platform family of tools designed to build, test and package software, I provided an overview and showed you how to build a basic CMake project. cmake (it may not use cmake tool or you don't want to do it) the answer is to emulate such process:. The library must be specified as a CMake target name, a library file name (such as libfoo. dll file. If versionless commands are disabled, use qt6_add_library() instead. 6) add_library (optFmg optBladWriter. You can then find_dependency that package to get its targets. UPDATE (CMake 3. I added a cmakelists with add_library(libname src/functions. tx file to add add_library(mosquitto_STATIC STATIC ${MOSQ_LIB}) It builds the static library but wheni add this in my project, i see lots of linker err related to openssl. lib or my_library. And since I still haven't figured out how to get cmake to export the path along with it, I reverted my export command to that shown in the question I used the command add_library . I think you're mixing up two different paradigms here. On Windows, If you have control over installing zlib, for example, you are installing dependencies in a Continuous Integration setup, I would recommend to just remove the zlib dynamic library. This is because CMake expects a SHARED library to always have an associated import library on Windows. libXXX. cpp file2. Here's the text from Espressif: Using Prebuilt Libraries with Components Adding to @DanAlbert 's comment, the question is not how useful a static library alone can be. This has been asked on SO before and there's even a related bug on this in CMAKE. cpp) target_include_directories(something PUBLIC lib) add_library(something_shared SHARED) target_link_libraries(something_shared PUBLIC something) add_library If a library does not export any symbols, it must not be declared as a SHARED library. 0) project (MyLib) add_subdirectory(MyLib2) add_library(${PROJECT_NAME} STATIC MyLib. STATIC, SHARED, or MODULE may be That's what I'd suggest; leave that to your packaging/installation later on. To accomplish this we need to add BUILD_SHARED_LIBS to the top-level After some research, I have now my own version of the most simple but complete CMake example. dll and iconv. cmake file with liba itself, which would contain necessary definitions. dll respectively. text global return_number return_number: mov eax, 10 ret I can easily make a shared and static library using the command line: nasm -f elf64 -o libr After a long research on this subject, this is a working solution, with a couple of minor issues. o) to create the 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. c libsomelib. This blog post shows how you can do it: Using SDL2 with CMake On Linux you can use a recent CMake (e. a, so that UNIX compilers can search for it with -l flag. Should the dependencies be transitive? They aren't for me! Nils Gladitz nilsgladitz at gmail. They say this property is depricated and recommend using INTERFACE_LINK_LIBRARIES, but in my case (cmake version 2. I read and run this example so that I can build both static and shared libraries from one visual studio project. Hello, I have a set of C source files and headers. Somehow the answer from @Mike Willekes got CMake linking in the same target both release and debug for me :(. h test. The action of creating such archive is expected to be modelled with This section describes how to configure CPack to generate component-based installers that allow users to select the set of project components that they wish to install. In my main. Generally - the idea as I understand is this: A static library should be very self contained. Here it is, and it tries to cover most of the basics, including resources and packaging. By default the library file will be Creates an Object Library. Second, you list the headers in your add_executable() or add_library() call. As an example, a simple If there is more efficient way please reply. Examples: Creation of a static library doesn't involve a linking step. I am building a static library in CMake, which is dependent on many other static libraries. I want to compile it into a static library using cmake, but I end up with an empty - 8 bytes sized - library file, and a lot of undefined symbols when linking. rs script to generate the API's at build time. cc -o libfoo. 8) PROJECT (MyProj) IF Thanks for replying. md ├── LICENSE ├── headerOnlyLib # Header only library │ ├── CMakeLists. The STATIC keyword specifies that the library should be built as a static library. 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 I am developing a simple static C library for learning purposes using cmake. Set OPENSSL_USE_STATIC_LIBS to TRUE to look for static libraries. Instead create a super-project which does all the add_subdirectory() at the same level (in the same CMakeLists. a with\nthe sources in the add_library call. As an example, if your project's sources are in src, and you need headers from include, you Creates an Object Library. cmake prioritizes the dynamic version. a: $(OBJFILES) $(AR) cru $@ $(OBJFILES) $(RANLIB) $@ OBJFILES being a list of object files. instead, use find_package in combination with CMAKE_PREFIX_PATH to have it look at the export location of libA for those files. It applies to all subsequent add_library and add_executable commands in the same scope and sub-scopes. Exporting Targets ¶. In case you can't modify 3rd party so it will produce <package>Config. cmake Do not do add_subdirectory() in cmake-projects which are likely to be used as sub-directories itself. txt). o object files. STATIC, SHARED, or MODULE may be For example, to create a library named "mylib" in the "myproject" namespace, you could use the following command: add\_library(myproject::mylib STATIC src/algorithm. In general, to link a third party library, you need to add the include directory where the compiler will look for the headers, and the libraries which are used by the linker. Having the following setting: add_library(COMSDK_LIB STATIC IMPORTED GLOBAL) set_property(TARGET COMSDK_LIB PROPERTY If a library does not export any symbols, it must not be declared as a SHARED library. If you want to link this static library to another target (e. For example: find_library(CURL_LIBRARY NAMES curl curllib libcurl_imp curllib_static HINTS "${CMAKE_PREFIX_PATH}/curl/lib" ) For Boost I would strongly recommend using the FindBoost standard module and setting the BOOST_DIR variable to point to your Boost libraries. For OP's case it turned out that static library targets are suffixed with -static, so he had to write SOMELIB-static SOMELIBmain-static [2] Unfortunately, it is not so easy with shared libraries on Windows (DLLs) add_library(): defines the name of the target, STATIC for a static library, SHARED for a shared library, OBJECT for objects. The linker presumes all libraries to begin with lib, so to link to libm you link to m. txt in your your hierarchy. cpp) target_include_directories(something PUBLIC lib) add_library(something_shared SHARED) target_link_libraries(something_shared PUBLIC something) add_library dirty because: if you properly import a target, any public include directory will be used without having to write a line of code. add_library is for creating a library, either static or dynamic, e. lib file. This can be useful for project-wide settings. a file are just object files, they do not contain headers. How do I setup for static linkage using CMake. How can I change it to compile with the /MT switch instead? <prefix>/lib/<arch> if CMAKE_LIBRARY_ARCHITECTURE is set, and <prefix>/lib for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH. I've seen this quite a lot in C++, that developers add an empty source file to the library in CMake. All of the sudden I found myself in a situation that I have been successfully avoiding so far - I needed to make a C++ library with CMake. Normal Libraries add_library(<name> [STATIC | SHARED | MODULE] [EXCLUDE_FROM_ALL] [source1] [source2 ]) Adds a library target called <name> to be built from the source files listed in the command invocation. UPD 2 Adds a library target called <name> to be built from the source files listed in the command invocation. o, not with foo. A classic example is found in FreeRTOS The specific file is: FreeRTOSConfig. STATIC, SHARED, or MODULE may be The BUILD_SHARED_LIBS variable may be enabled to change the behavior of add_library() to build shared libraries by default. a. I need to make library test and use it in other projects by #include <libraryname> In project test: CmakeLists. pc-- CPackConfig. a and libiconv. I realized that the foo dependency was being emitted in the export; it just didn't have a path with it. I think that what you want is to import a library for CMake: add_library(testlib SHARED IMPORTED) set_property Linking a static library to a shared library in cmake. This helps CMake manage project dependencies more effectively. My directories are laid out like this: main SFML (subtree synced with the official git repo) src &lt;various modules&gt; General (her add_executable is for creating an executable program - you know: my_program. That only works if you're specifically linking with a static library of which you know the exact location beforehand. add_library(foo STATIC IMPORTED) Contribute to ttroy50/cmake-examples development by creating an account on GitHub. LIBRARY_TYPE=STATIC. UPD 2 How can I link a static library with cmake? Adding existing libraries to cmake is adding an "IMPORTED" library. Command line g++ -c foo. By default the library file will be Example. Now, that'll cause the name of the resulting libs I am trying to include SFML sources in my project. Creating and utilizing a static library with CMake involves defining your library with all its dependencies and ensuring proper propagation of these dependencies to The generated build system will link myexe to m. android { defaultConfig { externalNativeBuild { cmake { targets "native_staticlib" As a side note, find_library can be used too, although it is "lower level". txt project file to specify dependencies. In my CMakeList. Useful CMake Examples. I managed to get my C++/Qt project working with CMake under QtCreator, and also managed to build and test CED (CMake then produces a library: libced. also, including the XXx-targets. CMAKE_SYSTEM_FRAMEWORK_PATH. I only got this working by setting both configurations in one line, as suggested by @sakra in a related question - and doing so for every library that needed to be linked:. By using the INTERFACE keyword in the target_link_libraries command, you can specify that MyStaticLibrary also has a dependency on other_dependency. a for the DLLs libGLESv2. Here's my basic setup: cmake_minimum_required (VERSION 2. cxx) If a library does not export any symbols, it must not be declared as a SHARED library. And right away, the picture above shows a bad example of naming a library, because there should be no lib neither in the beginning nor in the end of the library name. ) are declared in math. 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. In AUTOSAR, services / service interfaces are defined in XML files, ARA has a code generator which reads these and generates code for these services / for their communication, which my framework uses. a) libraries in Android. It supports the same set of arguments as this command. An example being /usr/local for UNIX based The feature which I was looking for (add dependency of static import library on other import libraries) is called transitive linking. CMAKE_SYSTEM_LIBRARY_PATH. project(foo CXX) add_library(foo1 foo1. o, file2. Similarly, you should add the PUBLIC keyword here also: Creating a shared or static library using cmake. exe. Wouldn't imagine other wise. Navigation Menu Toggle navigation. [CMake] Importing a static library, then adding dependencies. Also, modern CMake encourages the use of target_include_directories() instead of include_directories(). cpp ) add_library(master_library INTERFACE) # Link the master library with the other Sometimes, you might want to distribute the functionality of a program, but not its source. Sign in Available add-ons. I already checked that link. In today’s Part 2, I’ll show you how to find libraries and link them to your application. As long as a library you are trying to use has a find_package script, it shouldn't be necessary to use find_library. This feature is only meaningful for static libraries. Rather than placing all of the source files in one directory, we can Learn how to create a static library using CMake and how to link it across different applications, addressing common linking issues such as "unresolved external symbol" errors. a looks like a bad name, I suggest naming the library like lib<something_here>. However FindZlib. This line assumes that MyLibrary is added with add_subdirectory() in the main CMakeLists. Conclusion. But for IMPORTED library CMake has no information about the library's compilation I'm used to QMake, working in QtCreator, but this will only work with CMake so I started looking around but I'm a bit lost (QMake seems a lot simpler in that regard). I want to create a static library that can be loaded by other projects who want to use those files. This property holds a semicolon-separated list of options specified so far for its target. a library too. The <name> corresponds to the logical target name and must be globally unique within a project. The CMake file has this line: # build the library add_library(${PROJECT_NAME} STATIC src/dependency-tracker. [1] I assumed that CMake targets are named same as output library names, but it is not mandatory. You have to use it like target_link_libraries(ch4 m) to link libmto your The problem is likely down to you running this on what CMake calls a "DLL platform" and how CMake classifies a shared library on such a platform. – I've got a simple C++ project set up that I'm trying to compile with CMake, and I'm trying to statically link libcurl to it. Let's call it "libsdk. cpp and my_source2. zlib doesn't have the option to build statically or dynamically, it automatically generates both versions. In Visual Studio 2010 there is an option, "Link Library Dependencies", which does exactly this. 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 submodules, each with their own CMakeLists. Resulted file is just an object one, so its better to name it as foo. cmake-- CPackSourceConfig. A library is a bundle of compiled source code that can be used by other projects. By default the library file will be I'm trying to use cmake (on Linux with GNU make and g++) to build a project with two sub-directories: MyLib and MyApp. 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 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. This library should hopefully be standalone, meaning a simple example "example. In my particular case, I found that I ended up having a bunch of other archives being included between the -Wl,--whole-archive Useful CMake Examples. The simplest solution may be to add HINTS to each find_* request. (The you can use add_library(sublib_o OBJECT . cpp) target_include_directories(staticLibA INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/. Reason: In an embedded target, I need to highly taylor the static library for the end application. You can add an extra property to the shared imported library target: set_property(TARGET abc_lib PROPERTY IMPORTED_NO_SONAME TRUE) cmake add_library documentation says, SHARED libraries are linked dynamically and loaded at runtime. Archiver (or MSVC librarian) flags for a static library target. Explinations for both would be amazing! (5a) Yes! (5b) It is a static library. CMake treats -Wl,--whole-archive my_particular_lib -Wl,--no-whole-archive as 3 separate libraries, and makes no guarantees about ordering. I would like them all to be included in the output . lib, so I use: If your staticfoo library is used solely as part of other libraries/executables, you can define it as. Instead other targets created by add_library() or add_executable() may reference the objects using an expression of the form $<TARGET_OBJECTS:objlib> as a source, where objlib is the object library name. To create an build target that creates an library, use the add_library command:. c) after running CMake using command prompt Project. UPD Thanks to @Bruce Adams who points out that since v3. txt │ └── src ├── README. However, the dumb bit. 18. No need to set this property explicitely. My question is the more general case, where CMake is the one looking up that location. This is needed because quite a few steps are involved: nanobind must build the module, a library component, link the two together, and add a different set of compilation and linker flags depending on the target platform. If liba is library developed by you and you are using CMake to build it, then you should install libaConfig. com > Example: > add_library(NS::a_lib STATIC IMPORTED) > set_target_properties(NS::a_lib PROPERTIES IMPORTED_LOCATION $ If liba doesn't provide any means to determine it's dependencies, you can't do anything. add_library(staticfoo OBJECT <src>) and use then as some sort of sources when build other library: add_library(sharedfoo SHARED <src> $<TARGET_OBJECTS:staticfoo>) For more info see documentation on add_library. In your Shared Libraries CMakeLists. MyLib contains source for a static library; MyApp needs to link against that Creates an Object Library. The actual file name of the library built is constructed based on conventions of the native platform (such as lib<name>. txt file declares what the library provides through install() commands. But I want the optFmg. As with the previous example on static libraries, the add_library() function is also used to create a shared library from some source files. By default this will create a static library, to create a shared library add -DBUILD_SHARED_LIBS=ON to the cmake command to configure the project. I downloaded the binaries as a zip folder and it gave me (amongst other things) a lib32/asssimp. 8. Acording to cmake documentation, cmake uses the variable BUILD_SHARED_LIBS to determine the default for add_library(). For example, a Windows resource DLL or a managed C++/CLI DLL that exports no unmanaged symbols would need to be a MODULE library. My project file structure looks like this: ├── CMakeLists. h C binding for the Rust exports every time you build. cpp file4. An object library compiles source files but does not archive or link their object files into a library. library. Stack Overflow. target_link_libraries ( app debug ${Boost_FILESYSTEM_LIBRARY_DEBUG} INTERFACE IMPORTED is, for example, for if you're wrapping your OS's packaged Perl library into a target with add_library, so that your targets can link against it. add_library(my_lib lib. The library, foo, can either be built from source or distributed pre-built. ) to make two targets, or, now I think about it some more, target_link_library(mainlib PUBLIC sublib) might do the trick, too. sln is created. Well you don't :) That's not how CMake works: in CMake, you first find the absolute path of a library, then link to it with target_link_libraries. 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. -- example (Folder)-- . Step 10: Selecting Static or Shared Libraries¶. This is a feature of static libraries in whole, not a CMake Such modification is possible because CMake knows how the library has been built. I'm attempting to link an externally-built library using Cmake to create a Visual Studio solution. The platform paths that these variables contain are locations that typically include installed software. o, you will need to add -fPIC flag or its equivalent for producing position-independent code when you build static library. All Apple variants. For example: add_link_options("-fexceptions") add_executable(first-test first. Given a set of object files, how would you build a static library with CMake ? With autotools I would do . Practically, I can see both SHARED and MODULE type targets generate . But I can't find how to do it in CMake. lib file so I can then link it another project. The target_link_libraries() command is used to link a given target with its dependent targets. add_library(target SHARED lib1 lib2 ) For example something like -DBUILD_SHARED_LIBS=ON on the cmake command line may do what you @ruslo, sure. Enterprise-grade security features GitHub Copilot. h ) and moved the includes and src into the lib folder. Subdirectories: Usage. For example, suppose I want to add libusb: add_library(libusb ) On Windows this will correctly produce libusb. a foo. From this I want to compile a shared library for normal linkage and then similar (just some different DEFINEs) MODULE library used to dynamically load the functionality as a module with RTLD_GLOBAL, so the namespace will be afterwards infused with its symbols. There is no reason in that linking with a static library should add a path to the search path of includes and spawn files in there. By default it compiles with the /MD compiler switch. nanobind’s CMake API simplifies the process of building python extension modules. OVERRIDE=DEFAULT. g. cc) Or use the dual approach, export a static lib and accept transitive dependencies exist. 11. If a library does not export any symbols, it must not be declared as This example shows how to build a library with CMake. No rules are generated to build it, and the IMPORTED target property is True. ) and add_library(sublib SHARED . By using cmake add_library documentation says, SHARED libraries are linked dynamically and loaded at runtime. e. cpp as source code for the library. First, you use include_directories() to tell CMake to add the directory as -I to the compilation command line. cpp) Includes the files my_source1. For example: If a library does not export any symbols, it must not be declared as a SHARED library. 2. Description. android ndk static-library shared-libs Updated May 9, 2018; Add this topic to your repo I need to make library test and use it in other projects by #include <libraryname> In project test: CmakeLists. Enterprise-grade AI features Premium Support. bindgen, on the otherhand, generates a sys. For example: As @RichvonLehe points out, the proposed solution may not work if you have multiple libraries. Static library is just an archive of object files. cpp) set_target_properties(libtest If a library does not export any symbols, it must not be declared as a SHARED library. 2) Force inclusion of all members of a static library. cpp) target_include_directories (Dependency PUBLIC If a library does not export any symbols, it must not be declared as a SHARED library. It may be referenced like any target built within the project. h include/moredefs. Purpose Execute custom commands during the build process. -DBUILD_SHARED_LIBS=ON. You specify EDKPOC as the first argument to the command; this is your project name, but it is not a valid target. 14 and newer) I tried and failed to get the static library built with Cygwin, but I added the project to Visual Studio and it built fine. the naming This is something that is ESP32 specific - it's my mistake for thinking the add_prebuilt_library was a cmake standard feature that I find to be pretty convenient. cpp) set_target_properties(libtest In Part 1 of our series on CMake, an open-source, cross-platform family of tools designed to build, test and package software, I provided an overview and showed you how to build a basic CMake project. And/or still deploy a dll (in a different package). 7) and using SDL2 works out of the box. All BSD variants. o. Static libs are named like this libGLESv2. By default the library file will be You can set position-independent code as a property of the libraries opposed to globally. In this case, the FindThreads add_library (hello_library STATIC \n src/Hello. It'll be dropped in the build directory. – @Tom unfortunately not. a), or a library file path (such as /path/to/libfoo. By default the library file will be add_library (staticLibA STATIC libA. Having the following setting: add_library(COMSDK_LIB STATIC IMPORTED GLOBAL) set_property(TARGET COMSDK_LIB PROPERTY I am trying to use CMake to set up some simple dependencies between a C++ project and the files that include headers from Dependency and when the executable is built it needs to be linked against Dependency's static library. To clarify, this will be about so-called normal kind of library. I have an imported library Foo::Foo: add_library add_library(bar STATIC "${BAR_SOURCES}") (with spaces as delimiter). . txt │ ├── cmake │ ├── example │ └── include ├── someLibA # Static library A │ ├── CMakeLists. This might help: Answer to "CMake: include library dependencies in a static library". h lib. dll. add_library(somelib STATIC IMPORTED) lib. 13 that does exactly that. My wrinkle is that I'm cross-compiling for Windows on Linux using MinGW. Unlike libc, which is automatically linked, libm is a separate library and often requires explicit linkage. 13 CMake has special command for such purpose: add_link_options. 5. You want an ephemeral target that causes certain definitions, includes, and link args to attach, and you want to indicate that it has no build rules of its own. cpp MyLib. h and require the library libm to be linked. txt have been processed. Try to use find_package with REQUIRED option? Also, there are some hints about the code improvement: 1. Add it to the CMAKE_PREFIX_PATH when you call CMake, then CMake will look for your library in the passed paths, too. The order is not important, CMake resolves the target-dependency (done via target_link_libraries()) once all CMakeLists. lib/. I got the optFmg. txt: Adds a library target called <name> to be built from the source files listed in the command invocation. The real power of IMPORTED targets is when the project providing the Instead other targets created by add_library() or add_executable() may reference the objects using an expression of the form $<TARGET_OBJECTS:objlib> as a source, where objlib is the object library name. cbindgen is used to generate a demorust. txt i. When working on almost any code project you’ll probably want to use another I am using CMake 3. This dependency will then be applied to MyExecutable when it links to MyStaticLibrary. 2) Explinations for both would be amazing! (5a) Yes! (5b) It is a static library. c cmake cpp static-library shared-library Updated Oct 1, 2021; Code Issues Pull requests A Basic example of using pre built external shared libs (. This is called as follows: Imported Libraries add_library(<name> <type> IMPORTED [GLOBAL]) Creates an IMPORTED library target called <name>. a for example liblib. 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 In my search I came across some information that said I shouldn't be using older cmake functions like add_compiler_options, include_directories, link_directories, link_libraries. cc as you note in the comment). If you set to ON cmake will assume all add_library() call will be as . so) and static libs (. However, my issue is a variation and the answer is not clear. My directories are laid out like this: main SFML (subtree synced with the official git repo) src &lt;various modules&gt; General (her I believe just clone the repo, add_subdirectory the cmake config, and then only target_link_libraries(runscript PUBLIC leveldb). version 3. So, if you want to link to a static library, you need to search for that static library: find_library(SOMELIB libsomelib. 13 there is the add_link_options command. It is implemented by setting target property IMPORTED_LINK_INTERFACE_LIBRARIES. For example: Force inclusion of all members of a static library. Note that add_library and ExternalProject_add in the same project are like oil-and-water as CMake just doesn’t have insight into the EP build For a statically linked internal library, add the CMake: target_link_libraries command to the CMakeLists. The command searches for a static/shared library, and is used to implement scripts used by find_package. The issue is that Android Studio via its Gradle plugin, by default, will not build a CMake target that is a STATIC library. a lib file and its include directory at {AndroidStudioProjects folder}/{The Project's name}/app/libs but for some (still unknown) reason, on my system it never worked like that. cpp I've got the standard curl_easy_init example code, and I'm I'm using VulkanMemoryAllocation, which is a header only library. cpp I've got the standard curl_easy_init example code, and I'm The CMake documentation starting with version 3. I've got a simple C++ project set up that I'm trying to compile with CMake, and I'm trying to statically link libcurl to it. (With full command ar qc libfoo. One example is here, with the empty source file found here. – The exact way to set the correct build options of course depends on the build system used for building that static library. For use librockchip_mpp. If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's If a library does not export any symbols, it must not be declared as a SHARED library. lib. lib when built in the release configuration, and md. lib, so I use: Creates an Object Library. This is the library. While IMPORTED targets on their own are useful, they still require that the project that imports them knows the locations of the target files on disk. And your example just wasn't throwing any errors because you can always define your own properties (with any naming). asm: section . Hi Andreas, thanks for rapid response. But with command add_library CMake actually creates a static library using ar command. Learn how to create libraries with CMake's "add_library". Consider the following situation. And make sure that dll doesn't expose any of the types of the other libraries at all (ideally expose a factory method that returns an abstract interface to your library, thus hiding ALL the implementation details). 4 on the FindOpenSSL page says: . Otherwise, you still need to provide different names to the targets of the two commands and different output directories so that they don't overwrite each other (see LIBRARY_OUTPUT_DIRECTORY property). Here my configuration : cmake for all my 10 dependencies libraries. a library doesn't define symbol mpp_frame_deinit, which is defined in other library libmpp_base. My example is assimp. For a statically linked internal library, add the CMake: target_link_libraries command to the CMakeLists. This feature is only supported for the following platforms, with limitations as noted: Linux. Here is an example of what I am trying to achieve. By default the library file will be I am using CMake 3. By using As a side note, find_library can be used too, although it is "lower level". txt I have the following lines for adding CURL: #option(CURL_STATICLIB "Set to ON to build libcurl with static linki In this example, MyStaticLibrary is a static library that your executable MyExecutable links to. 7) project(SDL2Test) find_package(SDL2 REQUIRED) include_directories(SDL2Test ${SDL2_INCLUDE_DIRS}) add_executable(SDL2Test Sadly, CMake follows the awkward "implicit lib" convention, which inevitably causes problems when library names don't actually follow the convention (e. Since CMake 3. zlib), or have 'lib' as an explicit part of their name. That is, it is perfectly correct that librockchip_mpp. 8: A STATIC library may be marked with the FRAMEWORK target property to create a static Framework. You can add an extra property to the shared imported library target: set_property(TARGET abc_lib PROPERTY IMPORTED_NO_SONAME TRUE) The CMake documentation starting with version 3. Simply put, the add_library(objlib OBJECT ${libsrc}) command instructs CMake to compile the source files to *. However, when you make a project which is an executable . I managed to make it work by placing both (lib file and I would like to create shared library with cmake, but also I need to link it to third party static libraries. 5. rs Rust binding for the C exports The key you are looking for is IMPORTED_NO_SONAME. Creates a static library This will be used to create a static library with the name libhello_library. It has its own domain specific language and various modules for most commonly used libraries and software frameworks. The target name has scope in the directory in which it is created and below, but the GLOBAL option extends visibility. SunOS. txt ├── build ├── lib │ ├── You should not be manually creating imported static libraries for system libraries! The correct commands are find_library or (better) find_package. You just need to add: include_directories(${CMAKE_CURRENT_LIST_DIR}) In each CMakeLists. More detailed information: I am building a framework on top of the ARA reference implementation of adaptive AUTOSAR. The most common use of CMake is Note: modern CMake has a better solution than mentioned below (see updates for details). About; Products but not for the outer order_example target. a doesn't create a static library. Skip to content. Then in the main add_subdirectory(lib) target_include_directories(${PROJECT_NAME}_node PUBLIC lib lib/include) @123r789 - The cmake executes perfectly fine, but the makefile obviously fails because nothing is linked in the renderer. 2. cpp my_source2. cmake package file. a include/defs. Some projects like GLFW provide an include folder on the root, so library users can copy it and use it as an include directory. Whether you need a static, shared or another type of library, this post has all C++ libraries covered! This educational repository contains a collection of examples showing how to use CMake for creating, building, installing, managing dependencies, and using libraries with Added in version 3. CMake API Reference¶. There is a static library (. As mentioned in the previous example, we pass the source files directly to the add_library(awesome_lib STATIC ); bundle_static_library(awesome_lib awesome_lib_bundled) Another benefit of a static library is that you could provide a build with I am trying to first create a static library and then link it to an executable using CMake. cmake_minimum_required(VERSION 3. For my executable I use: target_link_libraries( exe_target import_target ) And the import target was declared with: add_library(import_target STATIC IMPORTED) The filename for import_target is import. – Tsyvarev You just need to add: include_directories(${CMAKE_CURRENT_LIST_DIR}) In each CMakeLists. It performs the following tasks: In this example, MyStaticLibrary is a static library that your executable MyExecutable links to. h) I'm struggling to get Cmake to compile a C++ project into a static . add_library (my_library STATIC my_source1. STATIC, SHARED, or MODULE may be Apology for sin, i am new to cmake, still tried to update cmake in <repo>/src/cmakelist. – Groleo. 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 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). cpp) Or, if you want to use the same target name on the different architectures, set a variable like CMAKE_STATIC_LIBRARY_SUFFIX (there exist a whole bunch of them, you can use add_library(sublib_o OBJECT . Use set_target_properties() or set_property() commands to set its content. To add include directories use target_include_directories, to add a library to be linked to a target use target_link_libraries. The first thing to know: one doesn't link a static library - one uses an archiver (ar on I need a list of paths to these static libraries, to pass them to ar, to create a single static library. c optWriteNlpEmpsFile. Advanced Security. You can use CMAKE_SHARED_LINKER_FLAGS like: set (CMAKE_SHARED_LINKER_FLAGS "-Wl,--as-needed") This question looks like related. As you noted, the highly flexible ExternalProject module runs its commands at build time, so you can't make direct use of Project A's import file since it's only created once Project A has been installed. cpp) Note: modern CMake has a better solution than mentioned below (see updates for details). For example: when this is part of an open-source project, the library archive might be in any location. cpp) Use the command within other CMake commands (e. I imported it to the visual studio and built it. CMake in itself doesn't compile your project, it only calls your toolchain and passes parameters to it, and your toolchain doesn't 'know' that it is being called by CMake, or the structure of your project. For example if it should include my own file1. Targets that are shared libraries, modules, or executables need to use the LINK_OPTIONS target property. target_include_directories(): this line here is only for when you have subdirectories and private headers referencing each other relative to the project directory. If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's This is something that is ESP32 specific - it's my mistake for thinking the add_prebuilt_library was a cmake standard feature that I find to be pretty convenient. the bar library) can be propagated to the final target. a) instead of: I want to extract a static library from a ZIP-file and link against it. Here is my CMake file currently: cmake_minimum_required(VERSION 3. For example, for a static library built with CMake, you could change its build script so that it sets the POSITION_INDEPENDENT_CODE target property on the static library target. aIt's not very usual to construct a static library from other static libraries, but not impossible (though I don't know exactly how to do it with cmake, but if everything else fails - you still have add_custom_command). a file, so I can just ship a big lib file to customers. This is called as follows: Hm, it looks like find_package doesn't set IMPORTED_LOCATION property for libA target. h A link to one example is here: (Another example is LWIP, it uses the Contribute to ttroy50/cmake-examples development by creating an account on GitHub. cpp) This command creates a static library named "mylib" in the "myproject" namespace. 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). I'm not fully understanding how to add the static lib to my project. It is missing the wgl function definitions in windows to create a render context because they are in OpenGL32. For example: I also tried with cURL static library (for that, if you use CMake to compile cURL, add -DCURL_STATICLIB=ON in cmake command line). a with the sources in the add_library call. I am learning cmake on windows. It checks the usual places like /usr/lib, /usr/lib64 and the paths in PATH. : my_library. STATIC, SHARED, or MODULE may be Example. , add_library) to control the build process. lib). Adds a library target called <name> to be built from the source files listed in the command invocation. cxx) set_property(TARGET foo1 PROPERTY POSITION_INDEPENDENT_CODE ON) add_library(foo2 foo2. txt file is setup to create a static library. add_library(foo STATIC IMPORTED) Adds a library target called <name> to be built from the source files listed in the command invocation. a or <name>. However, you can explicitly set to build an shared or an static If a library does not export any symbols, it must not be declared as a SHARED library. It depends a little on whether you need consumers to be able to call the sublib-api or just need the mailib to use it. find_library(FOO_LIB foo) CMake will figure out itself how the actual file name is. txt add_library(libtest STATIC lib. Contribute to ttroy50/cmake-examples development by creating an account on GitHub. For example: add_library(something OBJECT lib/something. cpp) All source files must be given explicitly to the add_library command: for some reason which I cannot comprehend, simply writing add_library(${PROJECT_NAME} SHARED subproject1 subproject2) does not work as expected (it essentially creates an empty library & does not register the dependencies properly) I have added it as a STATIC IMPORTED library target, and set properties on the target: add_library( lime_api STATIC IMPORTED ) Skip to main content. Issue #1: This should work by placing the libxyz. So It's not a import library for other dll's. By default the library file will be The key you are looking for is IMPORTED_NO_SONAME. so dynamic libraries on Linux. This is a main advantage of installing library as a TARGET. Many mathematical functions (pow, sqrt, fabs, log etc. 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. The DEFAULT feature will be overridden by the WHOLE_ARCHIVE feature because they are compatible and enhance the user's experience: standard library specification and $<LINK_LIBRARY:WHOLE_ARCHIVE> can be used freely. Here's the text from Espressif: Using Prebuilt Libraries with Components This project demonstrates using bindgen and cbindgen within the <src>/lib/rust/build. But in my case I can’t do that. I did not find an actual solution for the problem as stated, but am posting my own workaround for future reference. If a library does not export any symbols, it must not be declared as a SHARED library. cpp\n) \n This will be used to create a static library with the name libhello_library. How does this work? The library has its own CMakeLists that specifies the appropriate add_library() commands. Distributing its headers and pre-compiled library might be helpful here. – I want to extract a static library from a ZIP-file and link against it. cxx) set_property(TARGET foo2 PROPERTY POSITION_INDEPENDENT_CODE ON) add_library(foojni SHARED foojni. a). Create subdirectories within your project's root directory. My make file has the following : CMAKE_MINIMUM_REQUIRED ( VERSION 2. For modules which depends on symbols from INTERFACE IMPORTED is, for example, for if you're wrapping your OS's packaged Perl library into a target with add_library, so that your targets can link against it. I can use the same technique to combine different static library (OBJECT) within the subdirectory's CMakeLists. cmake (Folder)-- spdlog. ) Or, if you want the same include directory to apply to libA itself (which is likely), use PUBLIC instead of INTERFACE . You already know the location of your library. By default the library file will be Adds a library target called <name> to be built from the source files listed in the command invocation. a) generated for each of my module. lib file and a bin32/assimp. txt describing the build process for each library) that I'd like to combine into a single static library for release to the consumers. CMake has a target_link_options starting from version 3. Force inclusion of all members of a static library. cpp" could link against it without any other library, except the system ones. creating lib1 using lib11 and lib12 objects and similarly lib2. 6) project(Test4) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") To add a library in CMake, use the add_library() command and specify which source files should make up the library. The CMakeLists. The setup add_library (my_library STATIC my_source1. – In my project, static library is created using cmake. In my library, I want to have an include folder on the root, so when I use the library on other projects, I can just copy this folder and set it as an include directory. I used this CMakeLists. cmake linking shared libraries on ubuntu. txt file, consider adding the PUBLIC keyword to ensure that the transitive dependencies (i. 14 and newer) CMAKE_CXX_FLAGS are compiler flags, not a linker ones. a one should link not only with that library, but with libmpp_base. When working on almost any code project you’ll probably want to use another The first thing to know: one doesn't link a static library - one uses an archiver (ar on Linux), which just puts all object files into one archive - libXXX. If yes, then how can I describe it in CMake so that the project can be built, and if Imported Libraries add_library(<name> <type> IMPORTED [GLOBAL]) Creates an IMPORTED library target called <name>. For link executable with library, you need issue target_link_libraries(TestProject libAPIenergy) after add_executable() call. lib to lib\curl. Also, for imported library you need to specify its location in IMPORTED_LOCATION property (this is noted in documentation for add_library. And I moved the produced library libcurl. lib when built in the debug configuration. (Assuming if they are found they will be used) It’s probably better for that ExternalProject code to just always be found using find_package and to have it provide its own -config. For example, a library that needs LD flag "--allow-multiple-definitions" or on windows /FORCE:MULTIPLE. For example: PhotoShop is a program and Qt is a library. I have a CMake project that builds a static library which depends on another static library. How to do that in CMake ? EDIT: I can't recompile the original cxx files, I have to use the object files (*. MODULE libraries are plugins that are not linked into other targets but may be loaded dynamically at runtime using dlopen-like functionality. Hi, what is the correct way to add some linking flags whenever a certain static library is used when linking an executable? Example: there is a static library L (providing its own public include directories and maybe depending on other libraries) whenever L is linked into an exectuable, the reference to L shall be enclosed in an -Wl,--whole-archive / -Wl,--no-whole I am trying to include SFML sources in my project. cpp ) add_library(library2 SHARED file3. Luckily, you can explicitly specify the targets you want to produce, e. Contents of STATIC_LIBRARY_OPTIONS may I'm using CMake on windows with the Windows SDK and NMake Makefiles. The only target you've specified in your example CMake file is BCXConfiguration. From the docs for install : For DLL platforms the DLL part of a shared library is treated as a RUNTIME target and the corresponding import library is treated as an ARCHIVE target. I found this command: add_library(math SHARED ${MATH_SOURCES} ${SIMPLE_FUNCTION_SOURCES} ${ADVANCED_FUNCTION_SOURCES}) The feature which I was looking for (add dependency of static import library on other import libraries) is called transitive linking. cmake link to shared libraries without using full path. CMake imported library behaviour. add_library(test test. cmake file directly is not what you are supposed to do. cpp) The CMake variable BUILD_SHARED_LIBS controls whenever to build an static (OFF) or an shared (ON) library, using for example cmake . STATIC, SHARED, or MODULE may be I have a problem with adding CURL library to CMake project. To fix the problem, Cmake: make static library and use in other projects. txt of MyApplication. 1. add_library (Dependency SomethingToCompile. this command cannot be used to add options for static library targets, since they do not use a linker. add_library Normal Libraries Imported Libraries Object Libraries Alias Libraries Interface Libraries Add a library to the project using the specified source files. Is it possible that the main function was in a static library? For example, I don't want to include headers that are used in the main function in another project. The command target_link_libraries(libB PUBLIC libA) automatically sets INTERFACE_LINK_LIBRARIES property. cpp) set_target_properties(libtest In my project, static library is created using cmake. txt │ ├── cmake I need to make library test and use it in other projects by #include <libraryname> In project test: CmakeLists. You should not be manually creating imported static libraries for system libraries! The correct commands are find_library or (better) find_package. ync pdiuwm diqvlu plb gzbj nmfr quyazzq noveuil dui xydqw