http://lists.gnu.org/archive/html/bug-bash/2016-10/msg00004.html

--- a/configure
+++ b/configure
@@ -16124,6 +16124,9 @@ $as_echo_n "checking shared object configuration for loadable builtins... " >&6;
 
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $SHOBJ_STATUS" >&5
 $as_echo "$SHOBJ_STATUS" >&6; }
+else
+	SHOBJ_STATUS=unsupported
+
 fi
 
 # try to create a directory tree if the source is elsewhere