From 02aba6c181f55255a017f8dac825ae3361c9d47e Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Mon, 15 Oct 2007 13:12:04 +0200
Subject: Ensure NULL is defined, before using it.

---
 m4/getaddrinfo.m4 | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'm4/getaddrinfo.m4')

diff --git a/m4/getaddrinfo.m4 b/m4/getaddrinfo.m4
index df6077920a..0234c70d94 100644
--- a/m4/getaddrinfo.m4
+++ b/m4/getaddrinfo.m4
@@ -35,6 +35,7 @@ AC_DEFUN([gl_GETADDRINFO],
 #ifdef HAVE_WS2TCPIP_H
 #include <ws2tcpip.h>
 #endif
+#include <stdlib.h>
 ], [getaddrinfo(NULL, NULL, NULL, NULL);], gl_cv_w32_getaddrinfo=yes)
     LIBS="$am_save_LIBS"])
     if test "$gl_cv_w32_getaddrinfo" = "yes"; then
@@ -60,6 +61,7 @@ AC_DEFUN([gl_GETADDRINFO],
 #ifdef HAVE_WS2TCPIP_H
 #include <ws2tcpip.h>
 #endif
+#include <stdlib.h>
 ], [gai_strerror (NULL);],
         [gl_cv_func_gai_strerror=yes],
         [gl_cv_func_gai_strerror=no])])
@@ -85,6 +87,7 @@ AC_DEFUN([gl_PREREQ_GETADDRINFO], [
 #ifdef HAVE_WINSOCK2_H
 #include <winsock2.h>
 #endif
+#include <stdlib.h>
 ], [gethostbyname(NULL);], gl_cv_w32_gethostbyname=yes)
     LIBS="$am_save_LIBS"])
     if test "$gl_cv_w32_gethostbyname" = "yes"; then
-- 
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