Declare nbpg if we're building for sparc, and initialize to the

smallest sparc pagesize.  This should deal with the IOCPARM_MAX
build problem, which occurs on sparc because various models have
different page size, so it's run-time determined instead.

pooka says that rump doesn't use ioctl(), so the value is apparently
of no consequence.

sys/rump/librump/rumpkern/misc_stub.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: misc_stub.c,v 1.4 2008/01/07 16:12:56 ad Exp $	*/
+/*	$NetBSD: misc_stub.c,v 1.5 2008/01/09 13:59:43 he Exp $	*/
 
 /*
  * Copyright (c) 2007 Antti Kantee.  All Rights Reserved.
@@ -33,6 +33,14 @@
 #include <sys/sysctl.h>
 #include <sys/systm.h>
 
+#ifdef __sparc__
+ /* 
+  * XXX Least common denominator - smallest sparc pagesize.
+  * Could just be declared, pooka says rump doesn't use ioctl.
+  */
+int nbpg = 4096;
+#endif
+
 void
 preempt()
 {