Hi Users, I am very new user of Boost libraries. I am facing a problem while I am running a sample code of filesystem. My system is MAC OS X 10.4.11. I am executing following command for the attached .cpp file: c++ -I/usr/local/include/boost-1_35 test.cpp -o test \ /usr/local/lib/libboost_filesystem-mt-1_35.dylib I am getting following errors: /usr/bin/ld: warning can't open dynamic library: libboost_system-mt-1_35.dylib referenced from: /usr/local/lib/libboost_filesystem-mt-1_35.dylib (checking for undefined symbols may be affected) (No such file or directory, errno = 2) /usr/bin/ld: Undefined symbols: boost::system::get_posix_category() boost::system::get_system_category() boost::system::get_posix_category() referenced from libboost expected to be defined in libboost_system-mt-1_35.dylib boost::system::get_system_category() referenced from libboost expected to be defined in libboost_system-mt-1_35.dylib collect2: ld returned 1 exit status Thanks a lot in advance. -- Ashish Kumar Agrawal +41-76-358-5982