Re: Error: undefined reference to get_driver_instance

[Thomas Tronstad]

I had this problem myself and it did indeed turn out to be a linker problem.
The function in question appears to be in a shared library, in my case /usr/local/lib/libmysqlcppconn.so.
So you would have to link this shared library with your code to make everything work.

I also had an issue where /usr/local/lib wasn't among the search paths for libraries so when i tried to run my successfully linked program i would get a new errormessage "/usr/bin/ld: cannot find -lobjc/usr/local/lib/libmysqlcppconn.so".
The solution to this problem is to add '/usr/local/lib' (without quotes) to the file /etc/ld.so.conf, and then run ldconfig to make sure the new setting is applied.