X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=m4%2Fsockpfaf.m4;h=99ea06f96f83fb77d40f5d1db4048d12dfb4ff37;hb=5578f81fadb4a41139718c79d321ccd6b52a4237;hp=a0527f1df6e6fbb686fe64041b33775cd53fd835;hpb=63c34db808cb3e866dac9cf3e7d856a42751f064;p=gnulib.git

diff --git a/m4/sockpfaf.m4 b/m4/sockpfaf.m4
index a0527f1df..99ea06f96 100644
--- a/m4/sockpfaf.m4
+++ b/m4/sockpfaf.m4
@@ -1,10 +1,8 @@
-# sockpfaf.m4 serial 1
-dnl Copyright (C) 2004 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# sockpfaf.m4 serial 6
+dnl Copyright (C) 2004, 2006, 2009 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
 
 dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...)
 dnl and some common address families (AF_INET, AF_INET6, ...).
@@ -15,27 +13,46 @@ dnl From Bruno Haible.
 
 AC_DEFUN([gl_SOCKET_FAMILIES],
 [
-  AC_MSG_CHECKING(for IPv4 sockets)
-  AC_CACHE_VAL(gl_cv_socket_ipv4,
+  AC_REQUIRE([gl_HEADER_SYS_SOCKET])
+  AC_CHECK_HEADERS_ONCE([netinet/in.h])
+
+  AC_MSG_CHECKING([for IPv4 sockets])
+  AC_CACHE_VAL([gl_cv_socket_ipv4],
     [AC_TRY_COMPILE([#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
-#include <netinet/in.h>],
-[int x = AF_INET; struct in_addr y; struct sockaddr_in z;],
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif],
+[int x = AF_INET; struct in_addr y; struct sockaddr_in z;
+ if (&x && &y && &z) return 0;],
        gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)])
-  AC_MSG_RESULT($gl_cv_socket_ipv4)
+  AC_MSG_RESULT([$gl_cv_socket_ipv4])
   if test $gl_cv_socket_ipv4 = yes; then
-    AC_DEFINE(HAVE_IPV4, 1, [Define to 1 if <sys/socket.h> defines AF_INET.])
+    AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.])
   fi
 
-  AC_MSG_CHECKING(for IPv6 sockets)
-  AC_CACHE_VAL(gl_cv_socket_ipv6,
+  AC_MSG_CHECKING([for IPv6 sockets])
+  AC_CACHE_VAL([gl_cv_socket_ipv6],
     [AC_TRY_COMPILE([#include <sys/types.h>
+#ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
-#include <netinet/in.h>],
-[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;],
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif],
+[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;
+ if (&x && &y && &z) return 0;],
        gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)])
-  AC_MSG_RESULT($gl_cv_socket_ipv6)
+  AC_MSG_RESULT([$gl_cv_socket_ipv6])
   if test $gl_cv_socket_ipv6 = yes; then
-    AC_DEFINE(HAVE_IPV6, 1, [Define to 1 if <sys/socket.h> defines AF_INET6.])
+    AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.])
   fi
 ])