$NetBSD: patch-aa,v 1.3 2013/05/23 14:59:13 joerg Exp $

--- postal.cpp.orig	2007-01-14 04:40:23.000000000 +0000
+++ postal.cpp
@@ -10,12 +10,22 @@
 #include <stdio.h>
 #include "postal.h"
 #include "logit.h"
+#include <cstdlib>
 #ifdef USE_GNUTLS
 #include <errno.h>
 #include <gcrypt.h>
 GCRY_THREAD_OPTION_PTHREAD_IMPL;
 #endif
 
+#ifdef __NetBSD__
+# include <sys/param.h>
+# if __NetBSD_Version__ >= 200000000
+#  define HAVE_STRUCT_SIGACTION_SA_SIGACTION
+# endif
+#else
+# define HAVE_STRUCT_SIGACTION_SA_SIGACTION
+#endif
+
 void usage()
 {
   printf("Usage: postal [-m maximum-message-size] [-M minimum-message-size] [-t threads]\n"
@@ -152,7 +162,9 @@ int main(int argc, char **argv)
   struct sigaction sa;
   sa.sa_sigaction = NULL;
   sa.sa_handler = SIG_IGN;
+#ifdef HAVE_STRUCT_SIGACTION_SA_SIGACTION
   sa.sa_flags = 0;
+#endif
   if(sigaction(SIGPIPE, &sa, NULL))
   {
     printf("Can't block SIGPIPE.\n");