Probably didn't previously need pthreads until you updated to use C++11 features which brings in pthreads in the deadstart code...
On Thu, Feb 4, 2016 at 8:53 AM, [email protected] <[email protected]> wrote: > I believe that doesn't have anything to do with C11 flags. You are just > missing the link to the pthread library. I could be wrong. > > Try and add this to your cmake file: > > find_package (Threads) > > target_link_libraries (myexecutable/lib ${CMAKE_THREAD_LIBS_INIT}) > > > > Sent from my iPhone > > On Feb 4, 2016, at 10:42 AM, Aaron Boxer <[email protected]> wrote: > > Hello, > I have a cmake project that uses C++11 threads. > I have added the lines > > set (CMAKE_CXX_STANDARD 14) > set(CMAKE_CXX_STANDARD_REQUIRED ON) > > > CMAKE version is 3.2.2, running on Ubuntu. > > When I try to build, I get the error > > undefined reference to `pthread_create` > > Any ideas on how to fix this? > > Thanks! > Aaron > > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake > > > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake
