Repeated mysql_library_init()+mysql_library_end() calls do not work

When trying to call repeated mysql_library_init() and mysql_library_end() it fails on different error.

With MariaDB Connector/C 2.3.2 I can call

mysql_library_init(-1, NULL, NULL);

mysql_library_end();

above code only 1024 times. At 1025 step it fails with error:

Can't initialize threads: error 95

With client from MariaDB 10.3.6 above code can be called only one time. After second time it fails with error:

Plugin pvio_socket could not be loaded: not initialized

With client from MariaDB 10.1.26 everything is working fine and 10000 iteration passed without problem.

This problem was found while developing Perl DBI driver DBD::MariaDB:
http://github.com/gooddata/DBD-MariaDB

In attachment is a simple application to testing mysql_library_init() and mysql_library_end() calls. Compile it with gcc test-init.c -o test-init `mysql_config --cflags --libs`