Tell MySQL to use the new readline interface even when an external
readline is being used.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

---
 configure.in |    1 +
 1 file changed, 1 insertion(+)

Index: mysql-5.1.53/configure.in
===================================================================
--- mysql-5.1.53.orig/configure.in
+++ mysql-5.1.53/configure.in
@@ -2689,6 +2689,7 @@
 	    # this way we avoid linking commercial source with GPL readline
 	    readline_link="-lreadline"
 	    want_to_use_readline="yes"
+	    AC_DEFINE_UNQUOTED(USE_NEW_READLINE_INTERFACE, 1)
 	elif [test "$mysql_cv_libedit_interface" = "yes"]
 	then
 	    # Use libedit
