list_remove XAUTH_OPTS "--enable-IPv6" &&
list_remove XAUTH_OPTS "--disable-IPv6" &&

config_query_option XAUTH_OPTS         \
          'Enable UNIX domain socket transport?'  \
          y                                       \
          '--enable-unix-transport'               \
          '--disable-unix-transport'              &&

config_query_option XAUTH_OPTS          \
          'Enable TCP socket transport?'          \
          y                                       \
          '--enable-tcp-transport'                \
          '--disable-tcp-transport'               &&

config_query_option XAUTH_OPTS           \
          'Enable IPv6 support?'                  \
          y                                       \
          '--enable-ipv6'                         \
          '--disable-ipv6'