-tls_gnutls_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol"
-tls_gnutls_protocol_deps="gnutls"
-tls_gnutls_protocol_select="tcp_protocol"
-tls_openssl_protocol_conflict="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol"
-tls_openssl_protocol_deps="openssl"
-tls_openssl_protocol_select="tcp_protocol"
-tls_schannel_protocol_deps="schannel"
-tls_schannel_protocol_select="tcp_protocol"
-tls_securetransport_protocol_deps="securetransport"
-tls_securetransport_protocol_select="tcp_protocol"
-tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"