$NetBSD$

--- include/sipp.hpp.orig	2014-03-09 20:04:57.000000000 +0100
+++ include/sipp.hpp	2014-12-30 17:05:25.000000000 +0100
@@ -24,6 +24,9 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#ifdef __sun
+#include <alloca.h>
+#endif
 #include <string.h>
 #include <pthread.h>
 #include <sys/types.h>
@@ -60,6 +63,9 @@
 #else
 #include <stdarg.h>
 #endif
+#ifdef __NetBSD__
+#include <stdarg.h> /* for va_list */
+#endif
 
 #if defined(__HPUX) || defined(__SUNOS)
 #include <alloca.h>
