# HG changeset patch
# User Simon Josefsson <simon@josefsson.org>
# Date 1137680032 0
# Node ID df6195e003c4b3b3612a2b78417a063a510c4251
# Parent  f7945ef945d613dc3dd3c2798e6b124920ae4c27
* socklen.m4: Look in ws2tcpip.h too, for mingw32.

diff --git a/m4/ChangeLog b/m4/ChangeLog
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2006-01-19  Simon Josefsson  <jas@extundo.com>
+
+	* socklen.m4: Look in ws2tcpip.h too, for mingw32.
+
 2006-01-16  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Don't use ldd, as
diff --git a/m4/socklen.m4 b/m4/socklen.m4
--- a/m4/socklen.m4
+++ b/m4/socklen.m4
@@ -1,17 +1,22 @@
-# socklen.m4 serial 2
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
+# socklen.m4 serial 3
+dnl Copyright (C) 2005, 2006 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 From Albert Chin.
+dnl From Albert Chin, Windows fixes from Simon Josefsson.
 
 dnl Check for socklen_t: historically on BSD it is an int, and in
 dnl POSIX 1g it is a type of its own, but some platforms use different
 dnl types for the argument to getsockopt, getpeername, etc.  So we
 dnl have to test to find something that will work.
+
+dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find
+dnl it there first.  That file is included by gnulib's socket_.h, which
+dnl all users of this module should include.
 AC_DEFUN([gl_TYPE_SOCKLEN_T],
-  [AC_CHECK_TYPE([socklen_t], ,
+  [AC_CHECK_HEADERS_ONCE([sys/socket.h ws2tcpip.h])
+   AC_CHECK_TYPE([socklen_t], ,
      [AC_MSG_CHECKING([for socklen_t equivalent])
       AC_CACHE_VAL([gl_cv_gl_cv_socklen_t_equiv],
         [# Systems have either "struct sockaddr *" or
@@ -21,7 +26,7 @@
 	   for t in int size_t "unsigned int" "long int" "unsigned long int"; do
 	     AC_TRY_COMPILE(
 	       [#include <sys/types.h>
-		#include <sys/socket.h>
+                #include <sys/socket.h>
 
 		int getpeername (int, $arg2 *, $t *);],
                [$t len;
@@ -39,4 +44,9 @@
       AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv],
         [type to use in place of socklen_t if not defined])],
      [#include <sys/types.h>
-      #include <sys/socket.h>])])
+      #if HAVE_SYS_SOCKET_H
+      # include <sys/socket.h>
+      #endif
+      #if HAVE_WS2TCPIP_H
+      # include <ws2tcpip.h>
+      #endif])])