ERROR IN MAKING XSIM! UNDER REDHAT 9.0

jinneemop

[root@ONECE xsim-0.3.9.4]# make
make[1]: Entering directory `/home/jinneemop/xsim-0.3.9.4/etc'
make[1]: `all' is up to date.
make[1]: Leaving directory `/home/jinneemop/xsim-0.3.9.4/etc'
make[1]: Entering directory `/home/jinneemop/xsim-0.3.9.4/plugins'
make[2]: Entering directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs'
make[3]: Entering directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs/jianpin'
cd dict; make
make[4]: Entering directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs/jianpin/dict'
g++ char2db.cpp -o char2db -Wall -O2 -I/usr/X11R6/include -DBDB_VERSION4 -DOS_LINUX -L/usr/X11R6/lib -L/usr/lib  -ldb_cxx -I/home/jinneemop/xsim-0.3.9.4/xsim -I/usr/include/db4
/usr/lib/libdb_cxx.so: undefined reference to `pthread_condattr_setpshared'
/usr/lib/libdb_cxx.so: undefined reference to `pthread_mutexattr_destroy'
/usr/lib/libdb_cxx.so: undefined reference to `pthread_mutexattr_setpshared'
/usr/lib/libdb_cxx.so: undefined reference to `pthread_mutexattr_init'
/usr/lib/libdb_cxx.so: undefined reference to `pthread_mutex_trylock'
collect2: ld returned 1 exit status
make[4]: *** [char2db] Error 1
make[4]: Leaving directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs/jianpin/dict'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs/jianpin'
make[2]: *** [all] Error 1
make[2]: Leaving directory `/home/jinneemop/xsim-0.3.9.4/plugins/IMs'
make[1]: *** [all] Error 1
make[1]: Leaving directory `/home/jinneemop/xsim-0.3.9.4/plugins'
make: *** [all] Error 1

WHAT SHOULD I DO ? WHAT'S WRONG WITH MY libdb_cxx.so ?