Implement new way to get the ioctl list for Linux: instead of
trying to #include every possible kernel header grab all the relevant
#defines from them and use those directly.
diff --git a/NEWS b/NEWS
index 109c8a6..f36c95f 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,7 @@
 ==============
 * Linux/ia64 port added
 * The usual Linux syscall updates (includes 32bit uid/gid support),
+* Linux ioctl list updated
 * Support IPv6 scope ids
   see ChangeLog for details