mysql socket

My mysql is running fine and points to /var/lib/mysql.sock on redhat7.2 My PHP4 is up and running and the myql.socket points to /tmp/mysql.sock I have looked in every file i can find on the disk that pertains to php and mysql. I cannot see where it is getting its direction from. ( I compiled it --with-mysql and it found the headers fine) my.cnf , httpd.conf and php.ini all point to /var/lib/mysql Any ideas where to go next. I dont want to have to alter every script to point to the right place for the socket file. peter richards