# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1192446724 -7200
# Node ID 9d1ed7b3746ad203376b3c4601031389e251515a
# Parent  b9402be3510c0957b4b538531ea193d2c67c568f
Ensure NULL is defined, before using it.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-10-15  Bruno Haible  <bruno@clisp.org>
+
+	* m4/getaddrinfo.m4 (gl_GETADDRINFO, gl_PREREQ_GETADDRINFO): Include
+	<stdlib.h> before using NULL.
+
 2007-10-15  Simon Josefsson  <simon@josefsson.org>
 
 	* m4/getaddrinfo.m4: Use NULL rather than 0 for pointers.
diff --git a/m4/getaddrinfo.m4 b/m4/getaddrinfo.m4
--- a/m4/getaddrinfo.m4
+++ b/m4/getaddrinfo.m4
@@ -35,6 +35,7 @@
 #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 @@
 #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 @@
 #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