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 Undefined symbols for architecture x86_64: "_usrsctp_deregister_address", referenced from: _main in test_package.c.o "_usrsctp_finish", referenced from: _main in test_package.c.o "_usrsctp_init", referenced from: _main in test_package.c.o "_usrsctp_register_address", referenced from: _main in test_package.c.o ld: symbol(s) not found for architecture x86_64 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 12 cmake.build() ConanException: Error 2 while executing cmake --build '/Users/jenkins/w/cci_PR-4134/13/e5a2c1e0-2618-4525-847a-cb12b1934abf/recipes/usrsctp/all/test_package/build/ee8fca8fed37681f2aacb95b9a20b9d4ffb1984a' '--' '-j8'