[PATCH] pnpacpi build fix

- Fix it for older C compilers.

- Extern decls always, always, always go in header files, please.

Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/pnp/pnpbios/core.c

@@ -61,6 +61,7 @@
 #include <linux/spinlock.h>
 #include <linux/dmi.h>
 #include <linux/delay.h>
+#include <linux/acpi.h>
 
 #include <asm/page.h>
 #include <asm/desc.h>
@@ -539,7 +540,6 @@ int __init pnpbios_init(void)
 	}
 
 #ifdef CONFIG_PNPACPI
-	extern int pnpacpi_disabled;
 	if (!acpi_disabled && !pnpacpi_disabled) {
 		pnpbios_disabled = 1;
 		printk(KERN_INFO "PnPBIOS: Disabled by ACPI PNP\n");

include/linux/acpi.h

@@ -532,4 +532,7 @@ static inline int acpi_get_pxm(acpi_handle handle)
 	return 0;
 }
 #endif
+
+extern int pnpacpi_disabled;
+
 #endif /*_LINUX_ACPI_H*/