Spec-Zone .ru
спецификации, руководства, описания, API

22.8.4.3. Running C API Client Programs

Undefined-reference errors might occur at runtime when you try to execute a MySQL program. If these errors specify symbols that start with mysql_ or indicate that the libmysqlclient library cannot be found, it means that your system cannot find the shared libmysqlclient.so library. The solution to this problem is to tell your system to search for shared libraries in the directory where that library is located. Use whichever of the following methods is appropriate for your system:

If the application is linked to the embedded server library, runtime error messages will indicate the libmysqld rather than libmysqlclient library, but the solution to the problem is the same as just described.