diff --git a/configure b/configure
index d9c1abd4f9..168d28a635 100755
--- a/configure
+++ b/configure
@@ -8582,6 +8582,7 @@ $_def_use_aton
 /* socklen_t support */
 $_def_socklen_t
 #ifndef HAVE_SOCKLEN_T
+#define HAVE_SOCKLEN_T 1
 typedef int socklen_t;
 #endif