Fixes

In file included from include/asm/current.h:4,
                 from include/linux/wait.h:27,
                 from include/asm/semaphore.h:15,
                 from include/linux/sched.h:19,
                 from arch/ppc64/kernel/asm-offsets.c:18:
include/asm/paca.h:25: error: array type has incomplete element type
make[1]: *** [arch/ppc64/kernel/asm-offsets.s] Error 1

when building with gcc-4.0

--- linux-2.6.11.3/include/asm-ppc64/paca.h.old	Fri Mar 18 13:23:40 2005
+++ linux-2.6.11.3/include/asm-ppc64/paca.h	Fri Mar 18 13:24:04 2005
@@ -22,7 +22,6 @@
 #include	<asm/iSeries/ItLpRegSave.h>
 #include	<asm/mmu.h>
 
-extern struct paca_struct paca[];
 register struct paca_struct *local_paca asm("r13");
 #define get_paca()	local_paca
 
@@ -114,5 +113,7 @@
 	struct ItLpRegSave reg_save;
 #endif
 };
+
+extern struct paca_struct paca[];
 
 #endif /* _PPC64_PACA_H */