ii  libcurl3-gnutls:amd64              7.38.0-4+deb8u2                 amd64        easy-to-use client-side URL transfer library (GnuTLS flavour)
ii  libgnutls-deb0-28:amd64            3.3.8-6                         amd64        GNU TLS library - main runtime library
ii  libgnutls-openssl27:amd64          3.3.8-6                         amd64        GNU TLS library - OpenSSL wrapper
ii  libgnutls26:amd64                  2.12.23-17                      amd64        GNU TLS library - runtime library
ii  libgnutls28:amd64                  3.2.15-1                        amd64        GNU TLS library - main runtime library