diff --git a/configure b/configure
index 060f1f2cc..99113e697 100755
--- a/configure
+++ b/configure
@@ -2508,7 +2508,7 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-for ac_func in rl_getc_function
+for ac_func in rl_getc_function rl_clear_signals
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
 echo "configure:2515: checking for $ac_func" >&5