ceph error

make[4]: Entering directory `/home/laks/Downloads/ceph-0.47.3/src/leveldb'
make[4]: Leaving directory `/home/laks/Downloads/ceph-0.47.3/src/leveldb'
make[3]: Leaving directory `/home/laks/Downloads/ceph-0.47.3/src/leveldb'
make[3]: Entering directory `/home/laks/Downloads/ceph-0.47.3/src'
./check_version ./.git_version
not updating .git_version (no ../.git)
  CXXLD  librados-config
/usr/bin/ld: ./.libs/libglobal.a(libcommon_la-HeartbeatMap.o): undefined reference to symbol 'pthread_rwlock_wrlock@@GLIBC_2.2.5'
/usr/bin/ld: note: 'pthread_rwlock_wrlock@@GLIBC_2.2.5' is defined in DSO /lib64/libpthread.so.0 so try adding it to the linker command line
/lib64/libpthread.so.0: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[3]: *** [librados-config] Error 1
make[3]: Leaving directory `/home/laks/Downloads/ceph-0.47.3/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/laks/Downloads/ceph-0.47.3/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/laks/Downloads/ceph-0.47.3/src'
make: *** [all-recursive] Error 1