AC_DEFINE(HAVE_READLINE, 1, [Define if you have the readline library.])
AC_MSG_CHECKING([how to link with libreadline])
AC_MSG_RESULT([$LIBREADLINE])
+ AC_SEARCH_LIBS([rl_outstream], [readline],
+ AC_DEFINE(HAVE_RL_OUTSTREAM, 1, [Define if the readline library provides rl_outstream.])
+ )
else
dnl If $LIBREADLINE didn't lead to a usable library, we don't
dnl need $INCREADLINE either.