Unresolved Mistery Error in PHP

Hi people: I trying to run a script from my shell but I get this error: [root@corotu docs]# ./phorummail php: error in loading shared libraries: libmysqlclient.so.6: cannot open shared object file: No such file or directory Well, some people said to me that usually this library is located in /usr/local/lib/mysql, I search this file in source of MySQL but not exists!!! only there are libmysqlclient.so.10, I made a sym-link from libmysqlclient.so.10 to libmysqlclient.so.6 after copy to /usr/local/lib/mysql and don't work!!!! I received the same error. The error occurs with any php script not only with Phorummail. I am on the edge of insane, please somebody help me, I was working in this for one week. Regards, Peter Brumvig