Cmake static link pthread. The issue comes in when building a fully static binary.

Cmake static link pthread I have tried simly building with the Visual Studio x64 Cross Tools Command Prompt, but when I try to link to the lib from an x64 application, it can't see any of the function exports. You have to use it like target_link_libraries(ch4 m) to link libmto your I want to static link the mongodb driver. That seems to have fixed it, thank you! That command does indeed display the dependencies. Expected behavior. Mixing C++ and C/C++ static library with CMake. In details. How can I change it to compile with the /MT switch instead? Skip to main content. In essence, use find_library() to find the location of the actual library, favouring static libraries over shared ones by listing them first in the names to look for. On my computer, this causes files to be compiled with -D_REENTRANT, and linked with -lpthread. cpp) target_link_libraries(dummy a b) CMake runs fine with this, and my application compiles but fails to link. Hence, when you try building a final shared library that actually uses the pthread capability it fails. Feb 5 2021, 12:22 AM. In this case, it looks like it may just be the pthread library. cmake. cmake in your CMake installation (possibly in /usr/share/cmake or similar), find the line For cmake_minimum_required < 3. txt it is better to use ${CMAKE_COMMAND}, so you will call exactly the same cmake which currently parses your script. a library also needs dl and pthread. I am missing something that is causing a lot of undefined references to glib features like those below. I want to statically link the libraries listed below: set_target_properties(exec PROPERTIES LINK_SEARCH_START_STATIC 1) set_target_properties(exec PROPERTIES LINK_SEARCH_END_STATIC 1) set( I have a linking issue with CMake 3. Comment Actions. – jwdonahue. This can be useful for project-wide settings. When I add the below for the linking of Exe1: target_link_libraries(Exe1 -Wl,- It looks like some work has been done to make pthread-win32 work with x64, but there are no build instructions. CMake has a cool way of linking to the pthread library (for CMake 3. target_link_libraries(lib2 PUBLIC lib1) or target_link_libraries(Executable PRIVATE lib2). cmake link shared and static library individually. The driver prefix and driver separator are given by the values of [CMake] How to static link with MinGW's libgcc and libstdc++ Alan W. Lib2A will depend on static Lib3A, lib3B, lib3C, etc. – . The cuFFT docs provide some guidance here, so I modified the CMakeLists. See documentation of the directory and target LINK_OPTIONS properties. Thus, the library does not exist when the executable tries to link. I want to statically link SDL2 so I can distribute a single executable without having to include the SDL2. This is because such infomation isn't contained in the static library, as opposite to a dynamic library. If providing the --static option does not return correct information necessary to link against the libpng archive, then you cannot use pkg-config for that purpose. cpp) For specific targets there is target_link_options: For libraries, like CURL, that have first-class CMake package support, you should use it. The library depends on pthreads, which with autotools is detected using an AX_PTHREAD macro from an ax_pthread. Then I simply copied the HelloWorld snippet in an external cmake project and tried to link the static PhysX libraries, but I am currently stuck there, Do your pthread header files have extern "C" { } around the function prototypes? That's the usual case for the linker not being able to link in C++. You have to also add its sources to be compiled. Here's my current I think on Linux pthread is used to implement std::thread so you need to specify the -pthread compiler option. Welcome to SO. king at kitware. 18: When a device link step is involved, which is [CMake] How to static link with MinGW's libgcc and libstdc++ Loaden loaden at gmail. CMake uses these options to set the link type for libraries whose full paths are not known or (in some cases) are in implicit link directories for the platform. For both the GSL and libconfig, I found cmake files and copied them into the cmake/ directory of my project. I just faced the same problem. Calls. build gcc for static linking. The proper way, when using pthreads, is to compile and link using the -pthread, which, among other things, will link in the pthread library. h and require the library libm to be linked. The problem boils down to the fact that for static link of a library pkg-config needs to be called with the '--static' option to extract the correct compile switches and link libraries. CMAKE_USE_PTHREADS_INIT. If you can find libGLU. As a build system, I use CMake. Previous message: [CMake] # Now link to the imported targets target_link_libraries(myexe imp_pthread imp_rt imp_c) This will produce your desired link I'm using CMake on windows with the Windows SDK and NMake Makefiles. As this is a linking option, this compiler option need to be AFTER the source files: $ g++ -std=c++0x test. dll. While other FindXXX. It could be no system-wide cmake installation, so plain cmake won't work. It is not enough to just include_directories with googletest. In my particular case, I found that I ended up having a bunch of other archives being included between the -Wl,--whole-archive When GoogleTest uses pthread, you may need to add flags to your compiler and/or linker to select the pthread library, or you'll get link errors. You need to build and link your app with following flags: target_compile_options($(CMAKE_PROJECT_NAME) -pthread) target_link_libraries($(CMAKE_PROJECT_NAME) curl pthread z) When you are linking it with the static NATS library, you also need to link to the dependencies of the NATS library. 6) project (Test) SET(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "-std=c++11 -pthread") Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company bingitup is the same name you'd give a target if you create the static library in a CMake project: add_library(bingitup STATIC bingitup. so Release mode binaries will link against libtcmalloc. To utilize this library, we need to link it to our code during compilation and linking. If you /still/ have problems with cmake picking the dynamic library over the static archive, try adding this to your CMakeLists. txt above the find I've added AddressSanitizer flag as follow: set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address") Everything builds and runs fine when using Unix Makefiles. In D96070#2543172, @mstorsjo wrote: In particular, if FindThreads. 2. 1(both tried) project: muduo Recently, I've started to learn network programming and download muduo for learning. Previous message: [CMake] InstallRequiredSystemLibraries + openmp probable bug Next message: [CMake] How to static link with MinGW's libgcc and libstdc++ Messages sorted by: I have been able to fix the problem by adding. dll must be some other lib, maybe a debug version. cpp -pthread -Wall -std=c++1 Skip to main content. This macro sets PTHREAD_LIBS and PTHREAD_CFLAGS appropriately for the target Among several changes and bug fixes, you could find the possibility to statically link it. i. cpp #include <iostream> #include <boost/log/trivial. In my CMake project file I use the following commands: add_library( mylibA STATIC ${mylib_SRC} ) target_link_library( mylibA pthread ) In a separate project, a create an executable that uses mylibA. txt above the find I have a CMake project that I sometimes want to compile against the static boost libraries, but I want to also make it easy to just use the dynamic libraries from the cmake GUI. Following is an example mixing static linking with the pthread library and dynamic linking with a Windows library: I've looked all over and I can't figure out how to get CLion to link the lpthread library. The makefiles supplied and used by the following 'make' command lines will define this for you. The problem boils down to the fact that for static link of a library STATIC_LIBRARY_FLAGS¶. 9 cmake: 2. txt I have this: option(USE_STATIC_BOOST "Build with static BOOST libraries instead of dynamic" NO) All binaries will link against libpthread. cpp -pthread All calls are generally wrong. a at the end on Linux, and . The PETSc libraries appear to produce viable petsc. This could be done in 3 steps: Finding the exact location of As @RichvonLehe points out, the proposed solution may not work if you have multiple libraries. The reason for the failure to link, is because when you add the flag -Wl,-Bstatic, you're telling the linker that it If you leave out the -static flag it all works; I think this may be because libmimalloc-debug. 1. h, and subsequently fails to compile vncconfig. find_package(OpenMP REQUIRED) link_libraries(OpenMP::OpenMP_CXX) But I don't know how to force cmake to static link openmp, in fact, all of cmake official variable about openmp library is all dynamic. After building PhysX on my linux machine I succesfully compiled the snippets. This was tested with cuda-10. I use this command to build the executable binary. I am developing a small simulation software that depends on two libraries, the GSL and the libconfig. 24. find_library(TCMALLOC_LIB NAMES When I use this more modern CMake way and add the targets to the projects target_link_libraries, I am also adding the PreProcessor definitions and the include directories but I seem to be missing something. If I supply the order of the libraries while compiling dpdk application using cmake with link static libraries. 0 or newer): Since CMake 3. When <PREFIX> and <SUFFIX> are specified, they precede and follow respectively the whole list of libraries specified in the LINK_LIBRARY expression, not each library item individually. Environment. – Tsyvarev Can you locate libGLU. Here is how I linked to CURL statically. It doesn't. The pthreads dependency is added to reproc with target_link_libraries(reproc PRIVATE 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 don't see what i'm doing wrong, i checked some posts on here and the answers seem to be doing exactly what i wrote in the CMakeLists (i saw Linking statically OpenSSL crypto library in CMake and Static linking of OpenSSL Crypto in CMake). so files. Shared libraries on Windows differ a lot from shared libraries on Linux. cpp) find_package (Threads) add_library(U SHARED Utils/utils. The problem comes when generating the Xcode project, it just doesn't want to link because it cannot find the ASan library. lib as a static link lib): nmake clean VC-static MinGW32 (creates libpthreadGCn. a (GNU) Place them in the appropriate directories for your build, which may be the standard Good afternoon. The LINKER: prefix and , separator can be used to specify, in a portable way, options to pass to the linker tool. I suspect libpng (along with a majority of other packages) dropped support for static linking some time after libpng 1. dll * libwinpthread-1. cmake which are installed with your lib (usually in /usr/share on posix systems), given the user is also using cmake. 8, 3. The application won't start complaining that these libs are missing! dnf --enablerepo=PowerTools install glibc-static or yum install glibc-static for libstdc++ dnf --enablerepo=PowerTools install libstdc++-static or yum install libstdc++-static Centos 7. 10 and Boost 1_66_0. 1 for mingw32 compiler, it does not help. 10 gcc: 4. Nope, the problem is with Gtest's build. , pthread on Linux). There is no guarantee that the list of specified libraries will be kept grouped together though, so the <PREFIX> and <SUFFIX> may appear more than once if the library list is reorganized by Hi, I have a CMakeLists. @NimaGhorab Short answer: MinGW treats dynamic libraries in a weird (ie. – Kevin I have a working CMake test project that consists of my C++ code linked to a 3rd party library called DPDK, targeting Linux. 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. See here for similar reports, but I haven't I am trying to compile C++ using boost logging library with CMake. That said, based on your post, you may not In short. Here's my CMak I have a pretty novice understanding of how Cmake works. It applies to all subsequent add_library and add_executable commands in the same scope and sub-scopes. You cannot expect the community to pull your entire repo to help you with this problem. In my case the library libdl needs to be 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 gcc -dumpspecs | grep pthread and look for anything that starts with %{pthread:. Your approach is valid given the limitations of the CMake module called by find_package(ZLIB), specifically FindZLIB. But all these calls are effectively the same!. My final CMakeLists. If the library is external, you might want to add the path to the library using 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 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 @SergioLosilla I think it would depend on the library. tbaeder added a comment. 1. Then, in the root project folder, I need to link my main application to both. cpp and my own library of my functions that require DPDK. This is align with the clang selects for the target foo a multi-threaded statically-linked runtime library with or without debug information depending on the configuration. g++ -o ox one. So overhead of pthread is imposed on all programs linking to libc. In any case, I think your . hpp looks OK, except you need to declare action() as pure virtual already there, but I’m not sure if the way you’ve I'm using the package manager vcpkg to install the (static) Boost libraries via vcpkg install boost:x64-windows-static. Modified 2 years, 5 months ago. 13+): # my_tgt can be an executable, library, or module. In my top level CMakeLists. There may be some libraries XXX in which the find_package(XXX ) call provides a separate imported target for the static libraries (e. 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 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 have a problem with CMake: A static library and an executable are made but the build process is out of order. a as a static link lib): make I know the way to use cmake to link openmp in a cross-platform way. > > The problem boils down to the fact that for static link of a library > pkg-config needs to be called with the '--static' option to extract the > One last way to improve this example would be to tell CMake that the libsqlite3. a) Error: LINK_SEARCH_START_STATIC and LINK_SEARCH_END_STATIC allowed me to have now all but ld-musl linked statically. The scenario is the following: I want the project to have several different build types, like debug, release, etc. 2 on a linux machine: The following should be added after find_and_add_cuda_import_lib(cudart_static): I am porting a C library from autotools to cmake. My CMake files look like this: Algo: I'm trying to build a simple SDL2 game with CMake and MSYS Makefiles. The final goal is, to generate binaries "as static as possible" that is to link statically against every library that does have a static version available. 8. a on your system? The linker cannot link a dynamic lib (libGLU. [CMake] Mingw64: add a statically linked library adds libstdc++ dependency William Zeitler william at williamzeitler. In your main CMakeLists you do add_subdirectory(googletest) My application require using std::thread from C++11 , when i add the library to the linker in the Cmake file by this way : TARGET_LINK_LIBRARIES( ${execName} -pthread ${ZED_LIBRARIES} When I configure and build a static only version of the library the link commands generated for my project are wrong. I am referring to the DPDK example makefile to compile the dpdk application through CMake. org Sun Dec 27 17:30:57 EST 2009. pc libraries that correctly Setting up a project with -static-libgcc -static-libstdc++ -static -lwinpthread flags helps in case if I build a standalone application. If the found thread library is pthread compatible. Many mathematical functions (pow, sqrt, fabs, log etc. In your previous (deleted) question you have tried CUDA_CUBLAS_LIBRARIES variable, and this seems to be the right direction. so library, so add the flag where required. txt, which works, is as follows (note - it will work for Windows as well, i. c /usr/lib/x86_64-linux-gnu/libpthread. What I would like to achieve is a compiler invocation like . Heres a simple example my CPP file - logtests. From my understanding of things, I think there may have been some subtle inaccuracies in some of the discussions so far, so hopefully the following is helpful and if I've got something wrong, then by all means please point out the inaccuracies. a on your system, make sure it is available in CMAKE_LIBRARY_PATH. (MSVS) or *. This works fine for builds using shared libraries, but fails completely for static builds. The problem is that I need to use --whole-archive when linking or else some symbols from the underlying libraries are not found. cpp) target_link_libraries (my_program ${CMAKE_THREAD_LIBS}) ${CMAKE_THREAD_LIBS} is a CMake variable that provides the necessary libraries for using threads (e. g. CMake project linking a static library. txt accordingly to link against CMAKE_DL_LIBS and pthreads (Threads::Threads) and turned on CUDA_SEPARABLE_COMPILATION. This still doesn’t work as CMake invokes g++ for linking add_executable(WS WordSearch. a file (GNU) or, the static link library that you built: pthread*. hpp) target_link_libraries(U pthread) target_link_libraries(WS U) Compiles perfectly when I comment out that paused searcher part - When use 3d-party static libraries, it is your responsibility to link with all other libraries they need. And yeah - not the easiest thing on Earth . a My cmake script successfully 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 not sure what CMake does with same project and executable name, Maybe try naming the executable as pthread_Mutex_bin and set the output name as pthread_Mutex by set_target_properties(pthread_Mutex_bin PROPERTIES OUTPUT_NAME pthread_Mutex) Also, You can try - set_target_properties(pthread_Mutex PROPERTIES LINK_FLAGS -pthread) On linux, pthread functions live in the libpthread library. 7. lib (MSVS) or libpthread*. Some linkers support switches such as -Bstatic and -Bdynamic to determine whether to use static or shared libraries for -lXXX options. ca Tue Sep 11 12:24:16 EDT 2012. a doesn't contain linkage with [CMake] static library linking Brad King brad. cmake tries it best to determine if the compiler supports pthreads as a library, a compile time switch, or a link time switch, etcetera. Hi everyone, I am new to PhysX, but I would like to start by creating a custom cmake project and link the physx libraries to it. cmake or a <package>Config. This may be empty if the thread functions are provided by the system libraries and no special flags are needed to use them. If the found thread library is the win32 one. cmake: cmake version 3. Viewed 2k times 0 . The problem is that b references a. include_directories(a) include_directories(b) add_executable(dummy dummy. I am trying to achieve the equivalent of following command by CMake. 10. E. MSVC (creates pthreadVCn. To See the cmake-generator-expressions(7) manual for available expressions. The property is initialized from the value of the CMAKE_MSVC_RUNTIME_LIBRARY variable, if it is set. Previous message: [CMake] How to static link with MinGW's libgcc and libstdc++ Next message: [CMake] Does any one interesting to help writting CMake Scripts for QtCreator? Messages sorted by: I am stuck in a problem with Cmake on Windows 10. (static,shared and an executable) target_link_libraries( ${PROJECT_NAME} Boost::headers Boost Ok. If you use the CMake script, this is taken care of for you. a My cmake script successfully add_executable(main main. the file lib2. This flag ensures that the necessary libraries are included for multi-threaded programming. phys. 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 not sure what CMake does with same project and executable name, Maybe try naming the executable as pthread_Mutex_bin and set the output name as pthread_Mutex by set_target_properties(pthread_Mutex_bin PROPERTIES OUTPUT_NAME pthread_Mutex) Also, You can try - set_target_properties(pthread_Mutex PROPERTIES LINK_FLAGS -pthread) Here is my environment: OS: Ubuntu 14. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with I am using CMake 3. com Sun Jun 15 19:36:39 EDT 2008. so is found in ${CMAKE_SOURCE_DIR}/lib The modern CMake version that doesn't add the -I and -L flags to every compiler invocation would be to Handling Compiler Driver Differences¶. target_link_libraries(${TARGET} Threads::Threads) for the Launcher, when compiling for Linux. cpp Utils/utils. target_link_libraries(promise -lpthread) are transformed into the same linker's command line: for parameters not starting with -, CMake will A person linking to your static library would have to manually link to the necessary shared libs. Thus, to forward your intended link flags to the linker, you must use the LINKER: prefix. The documentation also suggests CUDA_ADD_CUBLAS_TO_TARGET macro for link cublas. E. yum install glibc-static Include Threads #----- Include phtread find_package(Threads REQUIRED) target_link_libraries(${PROJECT_NAME} Threads::Threads) For link with a library created in the same CMake project, just use name of its target, not a path to that library. We are using CMake to build an open source project. e. com Tue Sep 11 10:21:38 EDT 2012. set_target_properties(${TARGET} PROPERTIES COMPILE_FLAGS "-pthread" LINK_FLAGS "-pthread") 的方式，强制为编译和链接增加选项-pthread。注意这部分代码不能用 End a link line such that static system libraries are used. pthread_join(handle, NULL); printf("final = %d\n", data); return 0; cmake -DCMAKE_BUILD_TYPE=“DEBUG” -DCMAKE_C_FLAGS_DEBUG="-O0 -g Using cmake you can expose the dynamic libs without the end user having to link manually, this is done using a Find<package>. If I specify the call to target_link_libraries as follows, the binary fails to link. 11 to 3. In this case, you can simply use that provided target XXX::XXX_static in target_link_libraries() to check for existence of the library. a is linked with -pthread without using the -static flag; I think the -static flag only works if all libraries are build using -static (not sure, if I get to it I will try it out). That is, if pthread library comes first, while no symbols is requested from it, the linker simply drops that library. Undefined function is defined in the pthread library, so you need to link with that library. Contribute to libevent/libevent development by creating an account on GitHub. This is what we do: . I now want to separate my code into a main. To pass options to the linker tool, each compiler driver has its own syntax. I was not able to tell if this was resolved or still an issue. If you use your own build script, you'll need to read your compiler and linker's manual to figure out what flags to add. Previous message: [CMake] > When I configure and build a static only version of the library the link > commands generated for my project are wrong. We would like to build it on Windows. I have a working CMake test project that consists of my C++ code linked to a 3rd party library called DPDK, targeting Linux. This is where the I was using the FindThreads module in my project, and all is fine when building a dynamic library/executable. You only need to include -lpthread in the list of static libraries. Stack Overflow. If using glibc < 2. 10 and have a problem linking a compiled library to a test executable in CMake. The correct compile command should look like /usr/bin/x86_64-redhat-linux-gcc-8 -I/usr/local/include Event notification library. However, we have trouble linking three libraries : * libstdc++-6. Ask Question Asked 3 years, 2 months ago. LINKER: is replaced by the appropriate driver option and , by the appropriate driver separator. We create a separate CMake target google-test compile it as a library. I feel my understanding of your answer is wrong. If the property is not set, then CMake uses the default value MultiThreaded$<$<CONFIG:Debug>:Debug>DLL to select a MSVC This is how you add linker flags to a target in modern CMake (3. 34, the thread library has some issues (due to weak symbols) and requires some adjusting to get right: New workaround: -Wl,--whole-archive -lrt -lpthread -Wl,--no-whole-archive I attempted to use CMAKE_LINK_LIBRARY_USING to order to make this work, with the WHOLE_ARCHIVE Introduction When working with multi-threaded applications, it becomes necessary to link the -pthread flag to our code. XXX::XXX_static). The failure you are seeing is if a pthreads library exists. include_directories(${CMAKE_SOURCE_DIR}/inc) link_directories(${CMAKE_SOURCE_DIR}/lib) add_executable(foo ${FOO_SRCS}) target_link_libraries(foo bar) # libbar. Hi, We are trying to use the PkgConfig module with our GridPACK project to link with builds of the PETSc library. The issue comes in when building a fully static binary. For that purpose, we use MingW. CMAKE_USE_WIN32_THREADS_INIT. 28. gcc -static -O0 -g main. How can I get CMake to link pthread statically on Windows? I use MSYS2 MinGW 32 bit and cmake v3. Long Explanation: After hours of debugging of a code that worked Part of this logic was already on FindCUDA. so) to a statically built program. g++ -static pthread_create(&handle, NULL, work, &data); . cmake, but there were some missing libs. This macro sets PTHREAD_LIBS and 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 Visit the blog The pkg-config --static option relies on proper tagging in the . As answered by @vre, you should use find_package(Threads) instead. CMake enabled version of pthreads-for-win. a as a static link lib): make clean GC-static Define PTW32_STATIC_LIB when building your application. com Mon Jun 17 20:56:37 EDT 2019. Therefore, the modules in your static library, because they go into the shared library, must be compiled with -fPIC. I have found that the ordering of libraries is important. If you're linking a shared library, the modules from the static library go into the shared library. Also, some IDE (and CLion too) could use their own versions of CMake, which differs from the system one. Modifying it to link against CUDA::cufft_static causes a lot of linking issues. I am have a project that includes a static library that in turn relies on glib. Previously, I had two separate uses of cmake's TARGET_LINK_LIBRARIES, with the one specifying dl and pthread before (as you pointed out) the one specifying the one that had the static libraries. m4 file. I have read similar If I remove the suspicious LD flags altogether, the compilation will success but pthread will be dynamically linked. The thread library to use. uvic. But it affects on the target in the similar way, as it would affect on the target of the shared library. That way CMake preserve dependencies between libraries, even they are not part of the library file. My CMake project file looks like the following: Is there a combination of CMake arguments we can use when building libc++ to make all static and shared linking with libc++ work out of the box? Harbormaster completed remote builds in B87970: Diff 321533. -Wl,--whole-archive -lpthread -Wl,--no-whole-archive resolves the problem, not -pthread. 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; This is not CMake - this is really C++. cpp) target_link_libraries(main bingitup) bingitup is the same name you'd give a target if you create the static library in a CMake project: add_library(bingitup STATIC bingitup. I'm using the asio async timer tutorial for testing as I prepare to do some networking. When target_link_libraries is applied to the static library, it won't affect on the resulted library file. target_link_libraries( ${NAME} ${LIBS} pthread optimized tcmalloc_minimal. This command can be used to add any link options, but alternative commands exist to add libraries (target_link_libraries() or link_libraries()). If you build it using the standard configure approach, it isn't supplying the -lpthread correctly to create libgtest. Instead, linking fails because pthread_sigmask cannot be found. I know that w/ gcc you can just type -lpthread, but I need to do some debugging in CLion. But when I use Qt 5. I'm on a bleeding edge Linux maching working on a pr If you only need to support non-Windows platforms, then this old email from the CMake mailing list from one of the Kitware developers gives the simplest method. target_link_options(my_tgt PRIVATE "LINKER:-as-needed") Note that CMake always passes flags to the configured compiler. When I configure and build a static only version of the library the link commands generated for my project are wrong. , OpenCV) The named <target> must have been created by a command such as add_executable() or add_library() and must not be an ALIAS target. By default it compiles with the /MD compiler switch. (The last variable contains several variables, which probably corresponds to add_executable (my_program main. First, we download and build CURL: cmake, can't link static library into shared one. cmake similar to that one, then instead of IMPORTED targets you need to use CPLEX_INCLUDE_DIRS variable in target_include_directories command and CPLEX_LIBRARIES variable in target_link_libraries command. Archiver (or MSVC librarian) flags for a static library target. dll * libgcc_s_seh-1. Use -pthread for most portability. target_link_libraries(${TARGET} pthread) after. Please tate the tour and read How to Ask and post an minimal reproducible example. The numbers here show their layer in the hierarchy. By telling "libpthread is part of glibc" - it appears like, if libpthread is A then libc is equal to A+X. That implies, any program which links to libc/glibc, can using multi-threading with out linking to libpthread. reproc enables THREADS_PREFER_PTHREAD_FLAG before calling find_package(Threads). Hot Network Questions Why the unusual architecture of the Saturn IB booster? when to trade the fianchetto bishop in closed sicilian How to fit two Hopefully the explanation that follows helps clarify what PRIVATE, PUBLIC and INTERFACE mean and do. Previous message (by thread): [CMake] Mingw64: add a statically linked library adds libstdc++ dependency Next message (by thread): [CMake] Why do executables link static libs that shared libs were built 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'm building cmake itself, and I want to link in static OpenSSL libraries. I searched a lot and found that in earlier versions there was a problem where you could not link intermediate libraries in the result executable. The build succeeds and I can run build/demo cmake --help. so. a. But if the linker sees pthread after your objects, then linker finds out that pthread defines some symbols If your project uses FindCPLEX. Furthermore, I use CMake as my build system and I'm passing C:\vcpkg\scripts\ 然而-pthread不仅仅是一个链接选项，还是一个编译选项，指明需要定义一些宏来使用pthread。 # CMake的解决方法. > > Anyway, changing the CMakeLists line > TARGET_LINK_LIBRARIES(testPR nspr4 Ws2_32 TLDR: The thrid party lib (torch) was built using a Pre-cxx11 ABI, and libs built with that couldn’t obviously be linked to the object that was using cxx11 ABI!. - using Visual Studio):. So you have to link to that. I 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 If you link something with a static library, the modules from the static library get inserted into whatever you're linking it to. I don't know why, but this one is still dynamic. Linking with an External Library (e. CMake中，可以使用. When applied to the static library, target_link_libraries doesn't Simply changing cmake_minimum_required from 2. This is important as would enable portability of binaries across different systems during testing. To do this when I configure CMake source code I add OPENSSL_INCLUDE_DIR, OPENSSL_CRYPTO_LIBRARY, and OPENSSL_SSL_LIBRARY. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide A wild guess: It is not pthread library depends on your code, but it is your code uses some function, which could be optionally defined in pthread library. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & According to documenation, the variable CUDA_LIBRARIES contains only core CUDA libraries, not for Cublas. Unlike libc, which is automatically linked, libm is a separate library and often requires explicit linkage. Most of the confusion regarding how to integrate shared libraries with a portable build system like CMake I would like to have control over the type of the libraries that get found/linked with my binaries in CMake. Using cmake you can expose the dynamic libs without the end user having to link manually, this is done using a Find<package>. For example: add_link_options("-fexceptions") add_executable(first-test first. It occurs because C++ generally does name-mangling so that it can encode parameter details If you link your app with the static libcurl. cmake which are installed with In C and C++, multi-threading is achieved using the POSIX Threads (pthreads) 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 included a patch in the bug report linked above, but for a quick fix, find the file Modules/CheckIncludeFiles. This works for all other targets. You have the -pthread flag for some of your executables, but not for others, and not for your clients. This is link issue link According to man gcc-pthread is just g++ options that adds multithreading support that sets flags for both the preprocessor and linker – The makefiles supplied and used by the following 'make' command lines will define this for you. ) are declared in math. We need to get static builds working before we can release this functionality. If you link to an "add_library" or so, it > will add all the target linked libraries of the original "add_library", > which is rather incorrect imho because I don't want to link every library to > a 100M static library, that is only compiled in in 1 shared library I'm building cmake itself, and I want to link in static OpenSSL libraries. lib at the end on Windows. Using _REENTRANT, on GNU libc, changes the way some libc headers work. 4, the CMake snippet in question just work fine. Feb 4 2021, 2:50 PM. Anyway, The non-cross-platform way to do so is: This command cannot be used to add options for static library targets, since they do not use a linker. While I have pro CMAKE_THREAD_LIBS_INIT. , but also a custom I have a project where I build a library called mylibA that uses calls to the pthread library. Irwin irwin at beluga. exe because of undefined references. In this blog post, we will explore how to use the CMake build system to add the -pthread flag to our C and C++ projects. There are already a few questions on SO about this topic, but some are older than Objet: [CMake] find_package with static library that uses pkg-config not working Hi, I am using find_package to configure a library that uses pkg-config. 13 there is the add_link_options command. 1 (CMake; JetBrains IDE bundle; build 16); 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 [CMake] target_link_libraries: prefer static to dynamic Pau Garcia i Quiles pgquiles at elpauer. Host And Device Specific Link Options¶ Added in version 3. 0. We need to link in many Intel DPDK libraries, which we do as follows: Can you locate libGLU. The initialization could be done implicitly in Create(), but I'm not sure that's a good There's a hierarchy, so Exe1 will link against static libs Lib2A and Lib2B. Instead you are supposed to compile the files with -pthreads which is a compile time switch your compiler does accept. cpp) CMake automatically adds the lib to the front and the . However when the build attempts to link the curl test it fails trying to locate some pthread functions. txt file that builds a static library using gcc 12. See that question about using pthreads in CMake. Understanding the Problem In C and C++, Hey there, I was using the FindThreads module in my project, and all is fine when building a dynamic library/executable. a, you have to link your app with all other libs that would be linked with the dynamic libcurl. CMake treats -Wl,--whole-archive my_particular_lib -Wl,--no-whole-archive as 3 separate libraries, and makes no guarantees about ordering. @fpagliughi On Windows, when running statically, at the moment you have to call MQTTClient_global_init() or MQTTASync_global_init() before any other call, to initialize the mutexes. cmake modules have a special option for grabbing static libraries, the zlib module does not. 0 causes cmake to no longer find pthread. So I've run the static build on Linux, Mac and Windows, with the new test CMake config. Targets that are shared libraries, modules, or executables need to use the LINK_OPTIONS or LINK_FLAGS target properties. dll To solve this, we decided to link all three statically. target_link_libraries(promise pthread) and. non-Windows-y) way, mainly due to the fact that its model of shared libraries is influenced largely by Linux . That said, based on your post, you may not have a static library to link to. 34, the thread library has some issues (due to weak symbols) and requires some adjusting to get right: New workaround: -Wl,--whole-archive -lrt -lpthread -Wl,--no-whole EDIT: I am now using gcc 5. On other platforms, this could differ. . I am using cmake with vcpkg to build an application linking to Boost thread (actually, I developed it on Ubuntu and I am now trying to build it als >>Hi, > > OK, then libnspr4_s. The linker presumes all libraries to begin with lib, so to link to libm you link to m. This example creates an executable named my_program. hpp> #include <b Skip to main content. See the cmake-buildsystem(7) manual for more on defining buildsystem properties. If using Try this: # add imported target add_library(imp_pthread STATIC IMPORTED) # point the imported target at the real file set_property(TARGET imp_pthread PROPERTY 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 The library depends on pthreads, which with autotools is detected using an AX_PTHREAD macro from an ax_pthread. cmake_minimum_required (VERSION 2. Commented Jun 19, 2020 at 4: 45. I consolidated those two statements, and made sure that both dl and BTW, for call cmake executable inside CMakeLists. We include googletest folder to our source tree so that our project and Google Test stay together. pc files. So, you can use target_link_libraries both for static and shared libraries in the same manner. dobukvogv pfht tign wbi zdl oaxbfand urpgy bxupnj ovumi yildmfmf