Hmmm, libreadline 2.1 seems to be the oldest version we work with.

diff --git a/configure.in b/configure.in
index b0c3f8dcc3e2b79dd1a2a7e7641176787308e13e..c3c0af0268973c52a93329702c5a4e2971004453 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -143,7 +143,7 @@ if test "$enable_client" = yes ; then
                AC_CHECK_LIB(curses, tgetent, USE_TERMCAP_LIB=-lcurses,
                        AC_CHECK_LIB(termcap, tgetent, USE_TERMCAP_LIB=-ltermcap)))
        AC_CHECK_LIB(readline, rl_callback_read_char, CLIENT_LIBS="-lreadline $CLIENT_LIBS $USE_TERMCAP_LIB",
-               AC_MSG_ERROR([[The client requires GNU readline library 4.0 or newer. Either install the library or use --disable-client to compile without the client.]]), $USE_TERMCAP_LIB)
+               AC_MSG_ERROR([[The client requires GNU readline library 2.1 or newer. Either install the library or use --disable-client to compile without the client.]]), $USE_TERMCAP_LIB)
 fi
 AC_SUBST(CLIENT)
 AC_SUBST(CLIENT_LIBS)