update DBD::mysql error

[h h]

i upgrade DBD::mysql from 3.0007 to 4.023 ,get an error,anyone know how to solve this problem? thanks a lot

# find /usr -name 'mysql_config'
/usr/lib64/mysql/mysql_config
/usr/local/mysql-5.5.30-linux2.6-x86_64/bin/mysql_config
/usr/local/mysql-5.1.63/bin/mysql_config
/usr/local/mysql-cluster-gpl-7.1.22/bin/mysql_config
/usr/bin/mysql_config
/usr/lib/mysql/mysql_config

i use mysql5.5 so
# perl Makefile.PL --mysql_config=/usr/local/mysql-5.5.30-linux2.6-x86_64/bin/mysql_config

]# make test
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/00base....................ok 1/6
t/00base....................NOK 2# Failed test 'use DBD::mysql;'
# at t/00base.t line 21.
# Tried to use 'DBD::mysql'.
# Error: Can't load '/root/DBD-mysql-4.023/blib/arch/auto/DBD/mysql/mysql.so' for module DBD::mysql: libmysqlclient.so.18: cannot open shared object file: No such file or directory at /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/DynaLoader.pm line 230.
# at (eval 7) line 2
# Compilation failed in require at (eval 7) line 2.
# BEGIN failed--compilation aborted at (eval 7) line 2.
FAILED--Further testing stopped: Unable to load DBD::mysql
make: *** [test_dynamic] Error 9

# make install
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Writing /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/auto/DBD/mysql/.packlist
Appending installation info to /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/perllocal.pod
[root@CHS118 DBD-mysql-4.023]# perl -MDBD:mysql
syntax error at - line 0, near "use DBD:"
Execution of - aborted due to compilation errors.

# perl -MDBD::mysql
Can't load '/usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/auto/DBD/mysql/mysql.so' for module DBD::mysql: libmysqlclient.so.18: cannot open shared object file: No such file or directory at /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/DynaLoader.pm line 230.
at - line 0
Compilation failed in require.
BEGIN failed--compilation aborted.