--- linux-2.6.9/drivers/pnp/pnpacpi/Makefile.old	2004-11-27 20:21:51.000000000 +0100
+++ linux-2.6.9/drivers/pnp/pnpacpi/Makefile	2004-11-26 14:59:51.000000000 +0100
@@ -1,5 +1,10 @@
 #
 # Makefile for the kernel PNPACPI driver.
 #
+ifdef CONFIG_ACPI_DEBUG
+  ACPI_CFLAGS	+= -DACPI_DEBUG_OUTPUT
+endif
+
+EXTRA_CFLAGS	+= $(ACPI_CFLAGS)
 
 obj-y := core.o rsparser.o