Hi,everyone:
       This is the first time for me to write a mail in english,
so i may make some mistake,forgive me and thank you.

I'm compiling our project on linux,and my environment is:
os:fedora 12
compiler:gcc version 4.4.4
program language:c++
libraries:boost_1_46_1,log4cplus,librtmp,protobuf,libnat etc.
     I compile the project in static link mode,since the protobuf
is just a static library(google recommended),and i don't down
how to complie between a shared library and a static library.
I konw boost::thread depend on pthread,so i let gcc to link
pthread with -lpthread, but i still got the follow link error, the
add-on files is all the makefile and a error report:

g++ -o letvp2sp -g -O2 -W -Wall -D_DEBUG -std=c++0x -Wl,-rpath -static  -I../include  -I../P2SP  -I../../log4cplus-1.0.4/include  -L../../log4cplus-1.0.4/lib  -L../Debug  -llog4cplus  -lp2sp  -ldatamgr  -lpthread  -lrt  -lboost_thread letvp2sp.cpp
/tmp/cc4u6ZiF.o: In function `call_once<void (*)()>':
/opt/boost/include/boost/thread/pthread/once.hpp:51: undefined reference to `boost::detail::get_once_per_thread_epoch()'
/tmp/cc4u6ZiF.o: In function `pthread_mutex_scoped_lock':
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:24: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:26: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:26: undefined reference to `pthread_mutex_lock'
/tmp/cc4u6ZiF.o: In function `call_once<void (*)()>':
/opt/boost/include/boost/thread/pthread/once.hpp:88: undefined reference to `boost::detail::once_global_epoch'
/opt/boost/include/boost/thread/pthread/once.hpp:88: undefined reference to `boost::detail::once_global_epoch'
/tmp/cc4u6ZiF.o: In function `checked_delete<PLAYERS::players_service>':
/opt/boost/include/boost/checked_delete.hpp:34: undefined reference to `PLAYERS::players_service::~players_service()'
/tmp/cc4u6ZiF.o: In function `call_once<void (*)()>':
/opt/boost/include/boost/thread/pthread/once.hpp:84: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/once.hpp:84: undefined reference to `boost::detail::once_epoch_cv'
/opt/boost/include/boost/thread/pthread/once.hpp:84: undefined reference to `pthread_cond_wait'
/tmp/cc4u6ZiF.o: In function `pthread_mutex_scoped_unlock':
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:51: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:51: undefined reference to `pthread_mutex_unlock'
/tmp/cc4u6ZiF.o: In function `Utility::Singleton<PLAYERS::players_service>::init()':
/home/szj0306/letv_gl_p2sp/trunk/letvp2sp/../include/Singleton.h:24: undefined reference to `PLAYERS::players_service::players_service(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/tmp/cc4u6ZiF.o: In function `checked_delete<PLAYERS::players_service>':
/opt/boost/include/boost/checked_delete.hpp:34: undefined reference to `PLAYERS::players_service::~players_service()'
/tmp/cc4u6ZiF.o: In function `~pthread_mutex_scoped_unlock':
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:55: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:55: undefined reference to `pthread_mutex_lock'
/tmp/cc4u6ZiF.o: In function `call_once<void (*)()>':
/opt/boost/include/boost/thread/pthread/once.hpp:77: undefined reference to `boost::detail::once_global_epoch'
/opt/boost/include/boost/thread/pthread/once.hpp:77: undefined reference to `boost::detail::once_global_epoch'
/opt/boost/include/boost/thread/pthread/once.hpp:78: undefined reference to `boost::detail::once_epoch_cv'
/opt/boost/include/boost/thread/pthread/once.hpp:77: undefined reference to `boost::detail::once_global_epoch'
/opt/boost/include/boost/thread/pthread/once.hpp:77: undefined reference to `boost::detail::once_global_epoch'
/opt/boost/include/boost/thread/pthread/once.hpp:78: undefined reference to `pthread_cond_broadcast'
/tmp/cc4u6ZiF.o: In function `~pthread_mutex_scoped_unlock':
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:55: undefined reference to `boost::detail::once_epoch_mutex'
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:55: undefined reference to `pthread_mutex_lock'
/tmp/cc4u6ZiF.o: In function `call_once<void (*)()>':
/opt/boost/include/boost/thread/pthread/once.hpp:73: undefined reference to `boost::detail::once_epoch_cv'
/opt/boost/include/boost/thread/pthread/once.hpp:73: undefined reference to `pthread_cond_broadcast'
/tmp/cc4u6ZiF.o: In function `checked_delete<PLAYERS::players_service>':
/opt/boost/include/boost/checked_delete.hpp:34: undefined reference to `PLAYERS::players_service::~players_service()'
/tmp/cc4u6ZiF.o: In function `__static_initialization_and_destruction_0':
/opt/boost/include/boost/system/error_code.hpp:214: undefined reference to `boost::system::generic_category()'
/opt/boost/include/boost/system/error_code.hpp:215: undefined reference to `boost::system::generic_category()'
/opt/boost/include/boost/system/error_code.hpp:216: undefined reference to `boost::system::system_category()'
/tmp/cc4u6ZiF.o: In function `get_system_category':
/opt/boost/include/boost/asio/error.hpp:220: undefined reference to `boost::system::system_category()'
/tmp/cc4u6ZiF.o: In function `posix_tss_ptr_create':
/opt/boost/include/boost/asio/detail/impl/posix_tss_ptr.ipp:34: undefined reference to `pthread_key_create'
/tmp/cc4u6ZiF.o: In function `get_system_category':
/opt/boost/include/boost/asio/error.hpp:220: undefined reference to `boost::system::system_category()'
/tmp/cc4u6ZiF.o: In function `checked_delete<PLAYERS::players_service>':
/opt/boost/include/boost/checked_delete.hpp:34: undefined reference to `PLAYERS::players_service::~players_service()'
/tmp/cc4u6ZiF.o: In function `~posix_tss_ptr':
/opt/boost/include/boost/asio/detail/posix_tss_ptr.hpp:48: undefined reference to `pthread_key_delete'
/tmp/cc4u6ZiF.o: In function `boost::pthread::pthread_mutex_scoped_lock::unlock()':
/opt/boost/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:30: undefined reference to `pthread_mutex_unlock'
/tmp/cc4u6ZiF.o: In function `Utility::Singleton<PLAYERS::players_service>::init()':
/home/szj0306/letv_gl_p2sp/trunk/letvp2sp/../include/Singleton.h:24: undefined reference to `PLAYERS::players_service::players_service(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/tmp/cc4u6ZiF.o: In function `checked_delete<PLAYERS::players_service>':
/opt/boost/include/boost/checked_delete.hpp:34: undefined reference to `PLAYERS::players_service::~players_service()'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale.o): In function `std::locale::_Impl::_M_install_cache(std::locale::facet const*, unsigned int)':
(.text._ZNSt6locale5_Impl16_M_install_cacheEPKNS_5facetEj+0x3f): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale.o): In function `std::locale::_Impl::_M_install_cache(std::locale::facet const*, unsigned int)':
(.text._ZNSt6locale5_Impl16_M_install_cacheEPKNS_5facetEj+0x77): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale.o): In function `std::locale::_Impl::_M_install_cache(std::locale::facet const*, unsigned int)':
(.text._ZNSt6locale5_Impl16_M_install_cacheEPKNS_5facetEj+0x197): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale_init.o): In function `std::locale::locale()':
(.text._ZNSt6localeC2Ev+0x2b): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale_init.o): In function `std::locale::locale()':
(.text._ZNSt6localeC2Ev+0x47): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale_init.o): In function `std::locale::global(std::locale const&)':
(.text._ZNSt6locale6globalERKS_+0x27): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale_init.o): In function `std::locale::global(std::locale const&)':
(.text._ZNSt6locale6globalERKS_+0x8e): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(locale_init.o): In function `std::locale::global(std::locale const&)':
(.text._ZNSt6locale6globalERKS_+0x19a): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__gnu_cxx::__scoped_lock::~__scoped_lock()':
(.text._ZN9__gnu_cxx13__scoped_lockD2Ev[_ZN9__gnu_cxx13__scoped_lockD5Ev]+0x26): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_free_exception':
(.text.__cxa_free_exception+0x69): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_free_exception':
(.text.__cxa_free_exception+0x84): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_free_dependent_exception':
(.text.__cxa_free_dependent_exception+0x6c): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_free_dependent_exception':
(.text.__cxa_free_dependent_exception+0x87): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_allocate_exception':
(.text.__cxa_allocate_exception+0xaf): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_allocate_exception':
(.text.__cxa_allocate_exception+0x10f): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_allocate_dependent_exception':
(.text.__cxa_allocate_dependent_exception+0x67): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libstdc++.a(eh_alloc.o): In function `__cxa_allocate_dependent_exception':
(.text.__cxa_allocate_dependent_exception+0xb9): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_bases':
(.text+0x61): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_bases':
(.text+0x78): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_table_bases':
(.text+0x12b): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__register_frame_info_table_bases':
(.text+0x142): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `_Unwind_Find_FDE':
(.text+0x187c): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `_Unwind_Find_FDE':
(.text+0x18ca): undefined reference to `pthread_mutex_unlock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__deregister_frame_info_bases':
(.text+0x1a72): undefined reference to `pthread_mutex_lock'
/usr/lib/gcc/i686-redhat-linux/4.4.4/libgcc_eh.a(unwind-dw2-fde-glibc.o): In function `__deregister_frame_info_bases':
(.text+0x1af4): undefined reference to `pthread_mutex_unlock'
collect2: ld returned 1 exit status
make: *** [letvp2sp] Error 1

It troubled me for a few days.I'm puzzling.........