$NetBSD: patch-ac,v 1.4 2015/05/07 14:07:49 ryoon Exp $

--- configure.ac.orig	2015-03-25 20:03:58.000000000 +0000
+++ configure.ac
@@ -107,6 +107,7 @@ 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