хмм... сам-же и отвечаю =)

For the simple embedded server example code in documents, there is a bug in the Makefile. You have to put "-lstdc++" to gcc command line to solve the problem, or after you type make, you'll get a lot of "undefined reference" errors.

origin: http://dev.mysql.com/doc/mysql/en/libmysqld-example.html