/tmp/cc2WjvhH.o: In function `initialize_tls_session': main.c:(.text+0x30): undefined reference to `gnutls_priority_set_direct'
/tmp/cc2WjvhH.o: In function `main': main.c:(.text+0xd2): undefined reference to `gnutls_global_init_extra' collect2: ld gab 1 als Ende-Status zurück
I reckon this is because I am using an older version of gnutls (2.0.4).