Problem loading php dynamic libraries???

[Dave]

I get the following error messages in my httpd log files when starting
apache 2.0.47 with php 4.3.2-7:

        PHP Warning:  Unknown(): Unable to load dynamic library
        '/usr/lib/php4/imap.so' - /usr/lib/php4/imap.so: undefined
        symbol: executor_globals in Unknown on line 0
        PHP Warning:  Unknown(): Unable to load dynamic library
        '/usr/lib/php4/ldap.so' - /usr/lib/php4/ldap.so: undefined
        symbol: OnUpdateInt in Unknown on line 0
        PHP Warning:  Unknown(): Unable to load dynamic library
        '/usr/lib/php4/mysql.so'  - /usr/lib/php4/mysql.so: undefined
        symbol: OnUpdateInt in Unknown on line 0
        PHP Warning:  Unknown(): Unable to load dynamic library
        '/usr/lib/php4/pgsql.so'  - /usr/lib/php4/pgsql.so: undefined
        symbol: OnUpdateBool in Unknown on line 0

Has anyone come across this problem? PHP worked fine w/mysql prior to
the upgrade.
-dave