$NetBSD: patch-ac,v 1.1 2013/07/15 01:42:47 ryoon Exp $

--- configure.ac.orig	2009-01-11 19:33:42.000000000 +0900
+++ configure.ac
@@ -57,6 +57,7 @@ AC_C_CONST
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
 AC_CHECK_TYPES([u_int32_t])
+EL_PRAGMA_WEAK
 
 # Checks for library functions.
 AC_FUNC_CLOSEDIR_VOID