CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /home/conan/w/cci_PR-4134/.conan/data/usrsctp/0.9.4.0/_/_/package/689c268acaa38901a3461ad118ba9a498606c01c/lib/libusrsctp.so: undefined reference to `pthread_mutex_trylock' /home/conan/w/cci_PR-4134/.conan/data/usrsctp/0.9.4.0/_/_/package/689c268acaa38901a3461ad118ba9a498606c01c/lib/libusrsctp.so: undefined reference to `pthread_join' /home/conan/w/cci_PR-4134/.conan/data/usrsctp/0.9.4.0/_/_/package/689c268acaa38901a3461ad118ba9a498606c01c/lib/libusrsctp.so: undefined reference to `pthread_create' /home/conan/w/cci_PR-4134/.conan/data/usrsctp/0.9.4.0/_/_/package/689c268acaa38901a3461ad118ba9a498606c01c/lib/libusrsctp.so: undefined reference to `pthread_mutexattr_init' /home/conan/w/cci_PR-4134/.conan/data/usrsctp/0.9.4.0/_/_/package/689c268acaa38901a3461ad118ba9a498606c01c/lib/libusrsctp.so: undefined reference to `pthread_mutexattr_destroy' clang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [bin/test_package] Error 1 make[1]: *** [CMakeFiles/test_package.dir/all] Error 2 make: *** [all] Error 2 ERROR: usrsctp/0.9.4.0 (test package): Error in build() method, line 13 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4134/14/76eaf14d-a27b-4744-8e57-572d2f5f35e3/recipes/usrsctp/all/test_package/build/0a6d1d760093b3b19657250fc1b14995ab8829d8' '--' '-j3'