$NetBSD: patch-ae,v 1.1 2011/09/14 16:57:41 hans Exp $

--- sigscheme/configure.orig	2011-09-13 15:53:22.544782355 +0200
+++ sigscheme/configure	2011-09-13 15:56:13.848433241 +0200
@@ -16000,7 +16000,7 @@ if test "x$ac_cv_func_strdup" = xyes; th
 _ACEOF
 
     # Overrides _POSIX_C_SOURCE
-    $as_echo "#define _XOPEN_SOURCE 500" >>confdefs.h
+    $as_echo "#define _XOPEN_SOURCE 600" >>confdefs.h
 
 
 fi