[patch] acpi: fix drivers/acpi/glue.c build error

[Ingo Molnar <mingo@elte.hu>]

* Ingo Molnar <mingo@elte.hu> wrote:

> This batch is a proper super-set of the pull request I made a week 
> ago. It will update the files shown below.

another build bug triggered - fixed below.

	Ingo

------------------->
Subject: acpi: fix drivers/acpi/glue.c build error
From: Ingo Molnar <mingo@elte.hu>
Date: Wed Apr 30 22:56:57 CEST 2008

x86.git testing found the following build bug:

  drivers/built-in.o: In function `acpi_rtc_init':
  glue.c:(.init.text+0x16c3): undefined reference to `pnp_bus_type'

this tries to use PNP bus infrastructure even in the !PNP case.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 drivers/acpi/glue.c |    3 +++
 1 file changed, 3 insertions(+)

Index: linux/drivers/acpi/glue.c
===================================================================
--- linux.orig/drivers/acpi/glue.c
+++ linux/drivers/acpi/glue.c
@@ -299,6 +299,7 @@ static void rtc_wake_off(struct device *
 
 static struct cmos_rtc_board_info rtc_info;
 
+#ifdef CONFIG_PNP
 
 /* PNP devices are registered in a subsys_initcall();
  * ACPI specifies the PNP IDs to use.
@@ -360,4 +361,6 @@ static int __init acpi_rtc_init(void)
 /* do this between RTC subsys_initcall() and rtc_cmos driver_initcall() */
 fs_initcall(acpi_rtc_init);
 
+#endif /* CONFIG_PNP */
+
 #endif