PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/sybase.so' - /usr/lib/php/modules/sybase.so: undefined symbol: dbversion in Unknown on line 0

After doing a rpmbuild -bb on the php 5.0.4 source rpm from centosplus.

The packages all build, but I cannot seem to get sybase to compile as a shared module. If I make it a static module it compiles fine. Anyone have any ideas what this error is about?