GnuTLS must be initialized before it can be used. The library is initialized by calling gnutls_global_init. The resources allocated by the initialization process can be released if the application no longer has a need to call GnuTLS functions, this is done by calling gnutls_global_deinit.
The extra functionality of the GnuTLS-extra library is available after calling gnutls_global_init_extra.
In order to take advantage of the internationalisation features in
GnuTLS, such as translated error messages, the application must set
the current locale using setlocale before initializing GnuTLS.