Moved the declaration of astpending to the correct place.

This shouldn't affect the alpha or ia64, since they don't have a
variable named astpending.  The alpha still has 2 declarations of
this nonexistent variable.

sys/i386/include/globals.h

@@ -122,7 +122,11 @@ _global_globaldata(void)
 
 #define	witness_spin_check	GLOBAL_RVALUE(witness_spin_check, int)
 
-#endif	/*UP kernel*/
+#else /* !(SMP || KLD_MODULE) */
+
+extern u_int	astpending;
+
+#endif /* SMP || KLD_MODULE */
 
 GLOBAL_FUNC(curproc)
 GLOBAL_FUNC(astpending)

sys/sys/proc.h

@@ -452,7 +452,6 @@ extern u_long pgrphash;
 extern struct proc *curproc;		/* Current running proc. */
 extern struct proc *prevproc;		/* Previously running proc. */
 extern struct proc *idleproc;		/* Current idle proc. */
-extern u_int astpending;		/* software interrupt pending */
 extern int switchticks;			/* `ticks' at last context switch. */
 extern struct timeval switchtime;	/* Uptime at last context switch */
 #endif