[PATCH] more suspend-to-{RAM,disk} fixes

One more build fix, this time for !CONFIG_SOFTWARE_SUSPEND but
CONFIG_ACPI:

I've choosen this solution for now, as it is safest for ACPI people.
I'll modify suspend.c so that freezing part can be included without
whole suspend-to-disk support being included.

drivers/acpi/acpi_system.c

@@ -34,6 +34,7 @@
 #include <linux/sysrq.h>
 #include <linux/pm.h>
 #include <linux/device.h>
+#include <linux/suspend.h>
 #include <asm/uaccess.h>
 #include <asm/acpi.h>
 #include "acpi_bus.h"

include/linux/suspend.h

@@ -60,6 +60,8 @@ extern void refrigerator(unsigned long);
 #define register_suspend_notifier(a)	do { } while(0)
 #define unregister_suspend_notifier(a)	do { } while(0)
 #define refrigerator(a)			do { BUG(); } while(0)
+#define freeze_processes()		do { panic("You need CONFIG_SOFTWARE_SUSPEND to do sleeps."); } while(0)
+#define thaw_processes()		do { } while(0)
 #endif
 
 #endif /* _LINUX_SWSUSP_H */