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@3/13/59eeb6b8-be68-4737-bfad-e4bfddfab888/recipes/usrsctp/all/test_package/build/2f4338af9bd2bee8116b21a2b720ed97ff723c15' '--' '-j8'