+AC_ARG_WITH([readline],
+ [AS_HELP_STRING([--with-readline],
+ [enable readline functionality in ao-dbg @<:@default=auto@:>@])],
+ [],
+ [with_readline=auto])
+
+LIBREADLINE_LIBS=
+
+if test x"$with_readline" != "xno"; then
+ AC_CHECK_LIB([readline], [main],
+ [AC_SUBST([LIBREADLINE], ["-lreadline -lncurses"])
+ AC_DEFINE([HAVE_LIBREADLINE], [1],
+ [Define if you have libreadline])],
+ [if test "x$with_readline" != xauto; then
+ AC_MSG_ERROR([--with-readline was given, but test for readline failed])
+ fi],
+ -lncurses)
+fi