Linking CXX executable ../../../example/fileservercd /Users/kliron/Downloads/cpp-netlib-0.10.0/libs/network/example && /opt/local/bin/cmake -E cmake_link_script CMakeFiles/fileserver.dir/link.txt --verbose=1/usr/bin/clang++   -g -Wl,-search_paths_first -Wl,-headerpad_max_install_names   CMakeFiles/fileserver.dir/http/fileserver.cpp.o  -o ../../../example/fileserver  /opt/local/lib/libboost_thread-mt.a /opt/local/lib/libboost_system-mt.a /opt/local/lib/libboost_date_time-mt.a /opt/local/lib/libboost_program_options-mt.a /opt/local/lib/libboost_filesystem-mt.a /opt/local/lib/libboost_chrono-mt.a /opt/local/lib/libboost_filesystem-mt.a ../src/libcppnetlib-server-parsers.a -lrt /opt/local/lib/libboost_chrono-mt.a -lrt ld: library not found for -lrtclang: error: linker command failed with exit code 1 (use -v to see invocation) make[2]: *** [example/fileserver] Error 1make[1]: *** [libs/network/example/CMakeFiles/fileserver.dir/all] Error 2make: *** [all] Error 2