Cmake static library

Cmake static library. But for a executable to link a shared library, it's may be a problem. txt of subproject1 and subproject2, you should create your target using the OBJECT library feature (introduced in CMake 2. In case of Android or IOS such port already exists and you can simply use it. Linker errors on library built using CMake. 5k 2 56 81. cpp) target_include_directories(staticLibA INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/. Then, in the CMakeLists. The allowed values are: MultiThreaded. $ cd bin. asm ├── crti. Nov 7, 2012 · The project creates a few static libraries and a few executables. 2. This is a rule variable that tells CMake how to create a static library for the language <LANG>. STATIC. subProject_1. Hey guys, I’m trying to understand several things regarding the building of static/shared libraries on Windows. dll prefix. Jun 15, 2021 · @KymikoLoco: The Object Library approach does indeed reduce compilation time by half, but it requires static libraries be built as Position Independent Code (i. cc baz. file1. `target_link_libraries(C1 EXECUTABLE PUBLIC B)` (Instead of an executable exeC1 you could have created a shared library libC1 instead. c: int hi() { return 0; } test2. Hello, I have library which we will call libB with statically linked dependencies libE. a, libF. This property specifies the directory into which library target files should be built. 2 with cmake and Android NDK. CMakeLists. Sorted by: 2. This may not be a problem for linking static libraries. find_library (NAMES gtest PATHS path1 path2 pathN) set the variable CMAKE_LIBRARY_PATH. Archiver (or MSVC librarian) flags for a static library target. Since CMake tracks link dependencies automatically it is easy to refer to the "big" library in Sep 21, 2010 · At least with CLion under Windows (CLion 2016. Jan 8, 2012 · find_library(FOO_LIB foo) CMake will figure out itself how the actual file name is. lib on Windows. 8. I think it is problem with difference beetween static and shared librarys. CMake can be used to generate these files, or generate pkg-config files, and probably other formats of "tell me how to link This variable is used to initialize the MSVC_RUNTIME_LIBRARY property on all targets as they are created. txt cmake_minimum_required(VERSION 3. Multi-configuration generators ( Visual Studio , Xcode, Ninja Multi-Config) append a per-configuration subdirectory to Another option, to avoid the problem, would be to create OBJECT instead of STATIC libraries for unit1 and unit2. 0 or lower. As the tutorial states in step 10: the BUILD_SHARED_LIBS options offers an switch for either building a static or dynamic library. a. May 16, 2015 · 77. Also, add_library() specifies you are trying to compile glfw3 by yourself, but what you tried doing is to only link with it. Aug 31, 2020 · External lib builds with cmake. Static is compressed . c) target_compile_options(unit2 PRIVATE -fPIC) add_library(merged SHARED $<TARGET_OBJECTS:unit1> $<TARGET_OBJECTS:unit2 Mar 29, 2023 · 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. Assume your project called myProj and the pre-built library myLib. 1 Answer. Locate and configure the Google Protocol Buffers library. cpp ) Then in your main CMakeLists. By default it will build ImGui as a static library. $ make. cmake is imported by progA. But I think it is not enough for your task because you actually need to cross-compile library for you architecture. 6: All input and output variables use the Protobuf_ prefix. Contents of CMAKE_CUDA_RUNTIME_LIBRARY may use generator expressions. ¶. txt file of the external lib will have some add_library(ext_lib_name ) statements in it. Aug 16, 2020 · The sad reality is that static versus shared selection is done on a per package (or module) basis. The named target must be created by add_library() within the project or as an IMPORTED library . Below is the example of the file structure that I have. A library target name: The generated link line will have the full path to the linkable library file associated with the target. 2. It causes problems when compiling a static library into a dynamic library. don't build the static library if what you want is shared). It isn’t fully automated, but compile once is easy enough: add_library (l1-standalone STATIC a. obj) and this is it. Try adding your lib/glfw/lib directory to your link_directories() just as you do with your include_dicrectories(). After that you need to make sure that your find_package calls find those static libraries. So for maximum performance, this answer is still the best. target_include_directories(): is for making source files aware of the location of private headers relative to the project directory. ben. -DBUILD_SHARED_LIBS=ON. B’s CMakeLists. See documentation of the directory and target LINK_OPTIONS properties. If a library however is marked as “build_standalone”, we only build the . Consider two source files: test1. Changed in version 3. asm STATIC_LIBRARY_FLAGS. Dec 14, 2021 · 0. I have defined different project progA which is using libB which is exported as B-config. sa means shared archive; we have very broad platform support also). The linker will not use it to determine the location of the location of libraries to link. I am using Android Studio 2. All Apple variants. 2k 22 109 132. 1, when building OpenCV 3. Targets that are shared libraries, modules, or executables need to use the LINK_OPTIONS or LINK_FLAGS target properties. a files. answered Mar 29, 2012 at 19:10. You get: Jun 20, 2016 · The proper way to do this is not to fudge around with combining static libraries, but to provide CMake Config files to the user that contain all the necessary bits that link everything the way it's supposed to be linked. Targets that are shared libraries, modules, or executables need to use the LINK_OPTIONS target property. $ cmake --build . The static versions usually have the extension . Linking Static System Libraries 1. However, CMake generates static libraries otherwise. c Structure. creating an executable exeC1 using target C1 which just links (via `target_link_libraries`) to target B. txt file is in the parent directory, you need to call CMake using: cmake -DBUILD_SHARED_LIBS=OFF . 4. This property holds a semicolon-separated list of options specified so far for its target. Output directory in which to build LIBRARY target files. cpp ) include the directories. Jul 9, 2014 at 9:46. To build OpenCV as static library you need to set BUILD_SHARED_LIBS flag to false/off: cmake -DBUILD_SHARED_LIBS=OFF . Contents of CUDA_RUNTIME_LIBRARY may use generator expressions . So no, that is not possible with CMake abstractions today. by A, but A itself doesn't have that dependency encoded into it. The exported <name>. Create a CMakeLists. e. txt looks something like this: add_library(A STATIC a. Say you have file1. Your approach is valid given the limitations of the CMake module called by find_package(ZLIB), specifically FindZLIB. There are, however, others interested in this behavior. To accomplish this we need to add BUILD_SHARED_LIBS to the top-level CMakeLists. This is a guide for anyone who wants to use opencv as a static library with cmake and without homebrew on MacOs. add_library(lib file1. This property contains the list of transitive link dependencies. 6 MB from 200 KB. cxx) answered Jan 18, 2012 at 1:12. This command can be used to add any link options, but alternative commands exist to add libraries ( target_link_libraries() or link_libraries() ). cpp b. 6: Support for find_package() version checks. lib) in Visual Studio. Sep 24, 2023 · So, let’s say I have separate libraries A, B & C in separate project folders. As long as the order of static libraries is correct, and as long as dependencies of static libraries are satisfied, I get an ELF using some dynamic libraries (i set(CMAKE_EXE_LINKER_FLAGS "-static ${STATIC_LIBS} -dynamic ${EVERYTHING ELSE} -static ${MORE_STATIC_LIBS}") I don't know why Xaw. In the CMakeLists. Mar 8, 2021 · Aside from just going to the library folder and running CMake from there, you can actually do it from the project root - by setting --target option on build: $ rm -r . Dec 10, 2010 · On 12/10/2010 06:36 AM, Marcel Loose wrote: > Is there a way to let FIND_LIBRARY prefer static over shared > libraries? > I know of one, but that's a bit hack-ish: > > SET (CMAKE_FIND_LIBRARY_SUFFIXES . Undefined reference errors for system libraries Boost CMake ¶. a). ${SRCS}) set_property(TARGET cpp-netlib_pic PROPERTY POSITION_INDEPENDENT_CODE) This doesn't work. PROJECT. Dec 9, 2019 · 1. a library (Static lib). The library ( cpp-netlib_pic) is built without the -fPIC flags. Feb 28, 2021 · For any “library” by default we make a static library and link a shared library. Jun 1, 2021 · Hi everyone, something that looks basic and as a new one to cmake, I may miss: Windows environment: I have two directories A and B B is a subdirectory of A Both have their own cmake file: A: add_subdirectory(B) add_library(lib-a a. Oct 25, 2021 · In essence, this means that the person building your library can specify if the project builds static or shared libraries with the flag BUILD_SHARED_LIBS. The property value may use generator expressions . The STATIC_LIBRARY_FLAGS property, managed as a string, can be used to add extra flags to the link step of a static library target. 15 with the MSVC_RUNTIME_LIBRARY target property: cmake_minimum_required(VERSION 3. However it's also possible building it as a shared library: Aug 20, 2021 · For example, I build the static lib of level 1 first. ) Or, if you want the same include directory to apply to libA itself (which is likely), use PUBLIC instead of INTERFACE. While other FindXXX. sa form. The suffix to use for the end of a static library filename, . – Barth. Peter Mortensen. txt call this cmake file with. 15. If the developer sets BUILD_SHARED_LIBS to True in the CMake configuration command, running cmake --build generates shared libraries. dll. Nov 21, 2017 · 6. Jun 6, 2018 · cmake cannot find static library. Link with -cudart=static or equivalent flag(s) to use a statically-linked CUDA runtime library. Feb 16, 2017 · add_executable(myExe main. This can be used to locate static libraries on UNIX-like systems. I think this has something to do with linux adding "lib***. Jan 2, 2017 · I edited the environment variable for the new build of OpenCV, my IDE does see include directories and files, so this step also seems ok. cc file in the current directory. cmake and stores the result in CACHE entry Boost_DIR. First you need to make sure that all libraries you depend on are built statically. Nov 1, 2016 · 6. For Windows you need to set up dllimport/dllexport Okay, so I have a solution. a PUBLIC m). void work (void parg) {. Aug 22, 2012 · 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. 0 on it provides a package configuration file for use with find_package's config mode. The buildsystem will have a dependency to re-link <target> if the library file changes. If the library found is a framework, then <VAR> will be set to the full path to the framework <fullPath>/A. You already know the location of your library. cpp, file2. This is often not the case. Add there a static library target calling add library with the sources there. a" [pre/post]fix to the lib filename. The library must be specified as a CMake target name, a library file name (such as libfoo. txt 2 for this folder (creating a static library The idea is that you build modules in CMake, and link them together. The idea is to create lib1 and lib2 as static, and then link both to the mainLib, which must be a shared library. See Linking static libraries to other static libraries for more info there. The allowed values are: Compile with -MT or equivalent flag (s) to use a multi-threaded statically-linked runtime library. This module looks for the package configuration file called BoostConfig. It took me some time to figure out how to do it so I'm writing this for the future me and for anyone who finds the information useful. $ mkdir build. cmake. as an option to FIND_LIBRARY. Thank you for your answer. CMake verifies that the library exists before # completing its build. SRC . Where the library name is the name of the shared library, minus the first lib part and minus the . Variables with PROTOBUF_ prefix are still supported for compatibility. When the target is linked into another target using the target_link_libraries() command, the libraries listed (and recursively their link interface libraries) will be provided to the other target also. If that property is not set then CMake uses an appropriate default value Feb 19, 2015 · designate the path within the command. Here is my cmake: # Sets the minimum version of CMake required to build the native. a without the . Per's answer makes more sense. --target SomeLibrary Scanning dependencies of target SomeLibrary [ 50%] Building CXX object libraries/SomeLibrary Feb 1, 2019 · CMake finally added proper support for this in version 3. The details of this project are not important. main. The following variables can be set and are optional: Oct 13, 2023 · To make sure that CMake uses libraries with MSYS2 here are a few things you can do; Static Libraries, with Pacman ; When installing libraries using pacman make sure you're getting the versions than just the import libraries ( . Then I found a hacking method, code like below, to solve the problem linking a Apr 22, 2004 · Thanks for the info - now that I am a bit more familiar with CMake I "think" I can now phrase my question a bit more constructively ;-) It appears that using the TARGET_LINK_LIBRARY command will not work when building a static library: ADD_LIBRARY(${LIB} ${LIBRARY_TYPE} ${SRCS}) TARGET_LINK_LIBRARY(${LIB} ${ZLIB}) Looking at the makefile generated the library dependency is not "honoured": lib Jan 6, 2022 · The rpath is information that's only used at runtime to find the lib. 31. – Fraser. asm └── crtn. a) > > Are there other options? > Ideally, I would like to be able to specify this per library search, > i. txt in lib. Sep 21, 2023 · Tutorial -> static / dynamic Libraries on Windows. (I forget what we do on HP-UX, where . – pmr. c: MSVC_RUNTIME_LIBRARY. log-lib # Specifies the name of the NDK library that # you want CMake to Feb 6, 2019 · That interface must be used by other libs, like lib1 and lib2. This feature is only supported for the following platforms, with limitations as noted: Linux. cpp) add_library (l1-shared SHARED $<TARGET_OBJECTS:l1-standalone>) set_property (TARGET l1-standalone PROPERTY POSITION_INDEPENDENT_CODE 1) If the cmake generator doesn't support multi-configurations, when running the cmake . add_executable(main main. CMAKE_STATIC_LIBRARY_SUFFIX_<LANG> overrides this for language <LANG>. cpp b2. My problem is that I don't really know how to link the libraries Instead, CMake makes sure to link both static library files libB and libA when e. So even. txt: add_library(XXX STATIC foo. You add them to your project with: ADD_LIBRARY(LibsModule. Mar 30, 2022 · SHARED means a shared library, you can also make a static library with STATIC keyword, or an object file with OBJECT keyword. 6) project(Test4) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11") set(SOURCE_FILES Structure. Aug 1, 2016 · What does work is this CMake script: add_library (myLib SHARED $ {SOURCE_FILES}) set (CMAKE_EXE_LINKER_FLAGS " -static") target_link_libraries (myLib -static-libgcc -static-libstdc++) This must be the wrong way of doing this, to my knowledge -static-libgcc and -static-libstdc++ are linker options and not libraries Jan 25, 2017 · Anyway, having - I think - made a case for creating a shared library from static libraries, I'll proceed to the technical details. cpp) target_link_libraries(myExe gtest_main gtest) The last three lines set the include path to googletest, add the executable and link the exe against gtest. txt of level 2, I create the static library of level 2 depend on the static library of level 1 ( target_link_libraries(${PROJECT_NAME} LEVEL1) ), and then, I wanted to merge the libraries of level 2 and level 1 together to a new static lib file named as level1_2. The method used is that of @Tsyvarev, combined with the VISIBILITY target property mentioned by @Zaufi. This property is ignored for targets that are not STATIC libraries. New in version 3. . Very simple case Remarks: . ) But while the file with the static library doesn't store linkage information, the CMake target, which represents that static library, will be "aware of linkage". $ cd Help/guide/importing-exporting/MyExe. Add it to the CMAKE_PREFIX_PATH when you call CMake, then CMake will look for your library in the passed paths, too. If the external lib builds with cmake then you could add the lib to your build via a add_subdirectory ($ {libname_SOURCE_DIR}) call. I have a problem linking . Shared is machine code with some headers. FindProtobuf. txt. The named <target> must have been created by a command such as add_executable() or add_library() and must not be an ALIAS target. c bar. c) target_compile_options(unit1 PRIVATE -fPIC) add_library(unit2 OBJECT unit2. A combined library must be created, which on Linux can be done with ar. 0. Compile with -MD or equivalent flag (s) to use a multi-threaded dynamically-linked runtime library Link with -cudart=static or equivalent flag(s) to use a statically-linked CUDA runtime library. If this variable is not set then the CUDA_RUNTIME_LIBRARY target property will not be set automatically. so by my cmake script it also terminated without issue. In this post, we'll explore how to address these issues. # value of 3. For packages that provide config files the most reliable approach is to simply not build the versions you don't want (e. CMake accounts for these languages when computing how to link a target to the imported library. This can be useful in many cases: CMake: Cannot link to a static library in a subdirectory. cmake modules have a special option for grabbing static libraries, the zlib module does not. txt file? I have run across static libraries missing that flag. so file extension. lib. target_link_libraries(): to tell CMake that app is dependent on geo library. c. May 9, 2019 · Because CMake includes system libraries in the search path by # default, you only need to specify the name of the public NDK library # you want to add. add_subdirectory(A) add_subdirectory(B) add_library(big ${other_srcs}) target_link_libraries(big A B) This approach is easy to use and helps organize the project source tree. When a full path to a framework is used as a library, CMake will use a -framework A, and a -F<fullPath> to link the framework to the target. So, if your CMakeLists. For this example, let's imagine I'm only using lib1, because the process would be the same for lib2. int val = (int )parg; printf (“worker tid=%d”, *val); *val = 100; } Oct 5, 2010 · That's why I was looking for a way to produce: >> >> - once the 48 objects files common to console and window building modes >> - twice the 2 object files specific to the building mode: >> * once in the console mode >> * once in the window mode >> - make a static library for the console mode >> - make a static library for the window mode LIBRARY_OUTPUT_DIRECTORY. set (CMAKE_LIBRARY_PATH path1 path2) find_library (NAMES gtest) the reason is as flowings: Note This command is rarely necessary and should be avoided where there are other choices. though B is an internal implementation detail of A, C still needs B added. You can set compiler flags per-target by using the target_compile_definitions command. 18. It checks the usual places like /usr/lib, /usr/lib64 and the paths in PATH. txt looks something like this: add_library(B STATIC b. Mar 15, 2019 · If you have already executed cmake without setting of OPENSSL_USE_STATIC_LIBS, then you need to remove CMake cache (CMakeCache. However, the point here is that I have the object files and I can't recompile the cxx files. After downloading gtest and creating the cmake structure, you can build you program: $ mkdir bin. g. c) set_property(TARGET foo PROPERTY MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>") I'm following the instructions in the CMake FAQ entry &quot;How can I build my MSVC application with a static runtime?&quot; to centralize selection of the MSVC runtime for a bunch of nested CMake Nov 6, 2021 · here is files and subdirectory in the xcrt directory: ├── CMakeLists. cpp. Jul 12, 2021 · (As you probably know, a static library doesn't store any information about the linkage, a static library is just a collection of object files. – Andrea. We name the static libraries like foo. txt ├── Makefile └── x86 ├── CMakeLists. The only non-platform specific thing (I think) is the __EXPORT Dec 14, 2015 · And if you move the main() function to library please keep the following in mind: Why does the order in which libraries are linked sometimes cause errors in GCC? So if you build the libraries with CMake in the same project, I would recommend to change your libraries (at least the one containing your main() function) to an object library: Jan 18, 2012 · Use add_library in CMakeLists. My 2 cents, I was trying to change the output directory of a static library (. Jul 27, 2012 · 0. Path to lib Jul 20, 2015 · It shows how two "static" libraries, one with two visible symbols, both with by default hidden symbols, are added to a shared library, which is then used to link an executable. List public interface libraries for a library. May 4, 2017 · I want to create a static library that can be loaded by other projects who want to use those files. lib, you can it do like this: target_link_libraries(myProj myLib) edited Mar 29, 2023 at 11:45. sa or foo. a files). All BSD variants. Let's ignore header files for now, as they can be all included in your source files. Hadogenes. Apr 28, 2020 · CMake: setting a linker flag on a static library, to be used by the consumer when linking (Visual Studio) 1 Link static lib to exe in cmake (on Linux) We want to create an executable that when run creates a basic main. cpp) target_link_libraries(A PRIVATE B) Now, I know the May 5, 2021 · The librarian instruction is: lib. a libF. # library. $ cmake . exe /OUT:z. o files. txt ├── Makefile ├── crt1. /* && cmake -DCMAKE_BUILD_TYPE=Debug . a (prebuilt) in target_link_dependencies(libB PRIVATE libE. B to the list of libraries to be linked for C because parts of B are needed. For example: target_compile_definitions(support PRIVATE MY_SHARED_DEFINITION) target_compile_definitions(support_s PRIVATE MY_STATIC_DEFINITION) New in version 3. Otherwise, already found (shared!) libraries will be used and no re-search will be performed. The suffix for static libraries that you link to. 8): add_library(${PROJECT_NAME} OBJECT ${SRC}) Jul 11, 2016 · If you happen to know the answer to this question, do you also know if there is a way to cause a 3rd party CMake project to be compiled with this flag without modifying its CMakeLists. obj. cpp) target_link_libraries(B PRIVATE C) And A’s CMakeLists. 1. Hot Network Questions Determining Jordan canonical form(JCF) of an operator given by complex differentiation and then refer to those libraries from the top directory: # CMakeLists. cpp file2. May 11, 2016 · links in B as PRIVATE and another target C links in A, CMake will still add. configure command, ensure to also provide it the -DCMAKE_BUILD_TYPE=Release argument. 70. txt 1 for this folder (creating a static library) subproject_2. The CMakeLists. cpp (all source files) and CMakeLists. framework. You should either keep the default value or only pass a. 0, this was the only way of those listed here which caused CMake to build OpenCV as static rather than shared libraries. CMake does not have an abstraction for copying static libraries into others when linking. #include <stdio. 6. The CMake variable BUILD_SHARED_LIBS controls whenever to build an static ( OFF) or an shared ( ON) library, using for example cmake . With cmake you could specify an absolute path for target_link_libraries here or add a link directory and let the linker figure out which file to use. Select the MSVC runtime library for use by compilers targeting the MSVC ABI. That's all you really need to do. All you need to do is to add the variable BUILD_SHARED_LIBS ( read about it in the official CMake documentation) to your CMake call setting it to FALSE, 0 or OFF. cpp) target_link_libraries(lib-a $<TARGET_OBJECTS:lib-b) B: add_library(lib-b OBJECT b1. If Boost was built using the boost-cmake project or from Boost 1. cpp, main. sa. lib-a is a static Apr 23, 2020 · 3. Thus I just want to use the existing object files to create a library. Dec 30, 2016 · add_library (staticLibA STATIC libA. h>. h) add_library(Test4 STATIC ${SOURCE_FILES}) When I build using that Rule variable to create a static library. #include <pthread. Force inclusion of all members of a static library. SunOS. add_subdirectory(lib) add the main target with. That way cmake will build the external lib as a subfolder ("subproject"). The problem here is that dynamic libraries have to be generated with position independent code, so that they can be loaded dynamically into the address space of an existing process. 13. Jack Kelly. Compile with -MT or equivalent flag (s) to use a multi-threaded statically-linked runtime library. C is a static library but it’s CMake is unimportant for this example. Unexpected undefined reference. 0. You do this with linker flag: -l<library name>. Yes, I know this, my problem is: how to include the . That is, the compiler must generate the code in a specific way so that it is suitable ON 则相当于 SHARED，OFF 则相当于 STATIC。 如果未指定 BUILD_SHARED_LIBS 变量，则默认为 STATIC。 因此，如果发现一个项目里的 add_library 都是无参数的，意味着你可以用： cmake -B build -DBUILD_SHARED_LIBS:BOOL=ON 来让这个项目全部生成动态库。稍后会详解命令行传递变量的规则。 Feb 28, 2021 · Jay_K: Apparently this is a faq: build static and dynamic libraries. 24. txt under build directory) before new attempt. Navigate to Help/guide/importing-exporting/MyExe, create a build directory, run cmake and build and install the project. Only thing I found that worked for me was: set_target_propertes(${PROJECT_NAME} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/myPath" ) Aug 18, 2020 · The command line above built and ran normally, and if I linked libpthtread. For example, when a C executable links to an imported C++ static library CMake chooses the C++ linker to satisfy language runtime dependencies of the static library. Oct 11, 2019 · For cmake_minimum_required < 3. If that property is not set then CMake uses an appropriate default value based on the compiler to select the CUDA runtime library. So the stripper cannot access code of static library, but I think on the time of compilation (linking) with static library the executable will be stripped. First it's important to recognize that static libraries do not link other static libraries into the code. lib /NOLOGO z. Use set_target_properties() or set_property() commands to set its This can be used to locate static libraries on UNIX-like systems. a isn't available on your system, probably because the package maintainer of your Linux distribution didn't really make them available. progA doesn’t directly use libE, libF, libG, but when I try to build Jun 17, 2022 · 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-archive pair During my search for a solution, I found this message in the forum, but got errors for 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. Oct 14, 2023 · If you're using CMake with MSYS2 and you want to compile an executable that can be run on another device without installing dependencies, you may encounter issues with linking static system libraries and using static libraries installed with pacman. find_library( # Sets the name of the path variable. cmake or boost-config. Here is my CMake file currently: cmake_minimum_required(VERSION 3. However, given the modern CMake you're using, you should replace your INTERFACE_LINK_LIBRARIES. Other targets which link against cpp-netlib_pic do however, have -fPIC added to their compiler flags, but the linking fails because cpp-netlib_pic Jun 10, 2013 · set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++") This works without passing a -static which creates other big issues, and can essentially mix static and dynamic libraries. Be aware that I might miss something. a and libG. Mar 9, 2022 · 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. For example, a project may define components Runtime and Development, with shared libraries going into the Runtime component and static libraries and headers going into the Development component. with -fPIC), which adds a small amount of runtime overhead when those static libraries are used. 15) cmake_policy(SET CMP0091 NEW) project(my_project) add_executable(foo foo. 2) add_library(unit1 OBJECT unit1. B-config. It is also propagated by calls to the try_compile() command into the test project. Just . boeckel (Ben Boeckel (Kitware)) May 5, 2021, 1:59pm 3. a), or a library file path (such as /path/to/libfoo. However, you can explicitly set to build an shared or an static library by adding STATIC or SHARED after the target name: The actual output file differs between systems. add_library(cpp-netlib_pic. Added "-static" parameter to target_link_libraries command in CMake: target_link_libraries(HoGPeopleDetector ${OpenCV_LIBS} "-static") Then rebuilt the application, EXE size increased to 1. CMAKE_STATIC_LIBRARY_SUFFIX. a libG. If your target was installed after calling CMake with -DCMAKE_INSTALL_PREFIX=/usr, then your lib would end up in /usr/lib (as expected with prefix set to /usr ), but your headers would end up in /include (probably not expected). 3 EAP) which comes bundled with CMake 3. cmake file will require each of the exported components to be present in order for dependent projects to build properly. This is, in general, not possible, unless you recompile the static library. Feb 12, 2013 · When linking a library, if the library is a target CMake known, CMake always replaces related -L and -l options with the library's path name. wf eg jp nj ns ys mi ov wx bm