This patch fixes some (but not all) problems arising if
	XFree86 is compiled with IPv6 support, but the (linux) kernel
	does not support IPv6.

	1. chooser segfaults: fixed.

	2. xdm fails with "chooser socket creation failed" and consequently
	no Xserver is started: fixed.

	3. xdm fails to accept chooser connections: NOT fixed.

	With these changes we can use the IPv6 enabled xdm for local logins,
	but not in connection with a chooser.

	The chooser compiled with IPv6 support works fine together with
	xdm compiled without IPv6 support.

diff -ur -N XF86-4.4.0.orig/xc/programs/xdm/chooser.c XF86-4.4.0/xc/programs/xdm/chooser.c
--- XF86-4.4.0.orig/xc/programs/xdm/chooser.c	2003-11-23 23:57:31.000000000 +0100
+++ XF86-4.4.0/xc/programs/xdm/chooser.c	2004-03-08 08:59:09.000000000 +0100
@@ -856,6 +856,7 @@
     XtAddInput (socketFD, (XtPointer) XtInputReadMask, ReceivePacket,
 		(XtPointer) &socketFD);
 #if defined(IPv6) && defined(AF_INET6)
+    if (socket6FD != -1)
     XtAddInput (socket6FD, (XtPointer) XtInputReadMask, ReceivePacket,
 		(XtPointer) &socket6FD);
 #endif
diff -ur -N XF86-4.4.0.orig/xc/programs/xdm/socket.c XF86-4.4.0/xc/programs/xdm/socket.c
--- XF86-4.4.0.orig/xc/programs/xdm/socket.c	2003-11-25 23:21:08.000000000 +0100
+++ XF86-4.4.0/xc/programs/xdm/socket.c	2004-03-08 09:32:36.000000000 +0100
@@ -68,9 +68,9 @@
 
 #if defined(IPv6) && defined(AF_INET6)
     chooserFd = socket (AF_INET6, SOCK_STREAM, 0);
-#else
-    chooserFd = socket (AF_INET, SOCK_STREAM, 0);
+    if (chooserFd == -1)
 #endif
+    chooserFd = socket (AF_INET, SOCK_STREAM, 0);
     Debug ("Created chooser socket %d\n", chooserFd);
     if (chooserFd == -1)
     {