To link the driver with MySQL thread safe client libraries libmysqlclient_r.so or libmysqlclient_r.a, you must specify the following configure option:

--enable-thread-safe

and can be disabled(default) using

--disable-thread-safe

This option enables the building of driver thread-safe library libmyodbc3_r.so from by linking with mysql thread-safe client library libmysqlclient_r.so (The extensions are OS dependent).

In case while configuring with thread-safe option, and gotten into a configure error, look at the config.log and determine whether the error is due to the lack of thread-libraries in the system; and supply one with LIBS options i.e.

LIBS="-lpthread" ./configure ..