Subject: Config sugestion
To: None <>
From: Reinoud Zandijk <>
List: tech-kern
Date: 07/27/2001 10:18:15
Hi folks,

Since i had to configure a NetBSD/i386 system again I ran against a pretty 
irritating and time consuming job : the machine had no PCI so i had to 
manually comment EVERYTHING that was related to the PCI since the kernel 
had to be small too.

Therefore I would like to think of ways of specifying these kind of global 
choises in the configuration files... Options I considered are :

1) include #ifdef mechanism with variables that can be used 
	# please put your configuration options here :
	#define PCI
	#define SCSI
	#ifdef PCI
		pci* at mainbus
		vga* at pci?
	#	ifdef SCSI
			scsi* at pci?
	#	endif

	#ifdef SCSI
		scsi* at mainbus?

2) use a top-level include mechanism for clarity
	include "pci"
	include "ultra-pci"

3) use a warning mechanism only ... i.e. dont consider them errors when 
   some items are orphans ... just 'take the orphans to an orphanage' and 
   cut the item / tree out of the resulting tree... a flag could be used 
   to just treat them as warnings instead of errors.

Unrelated : I would like to see a more clearer output ... esp. when there 
are errors.... a resulting device tree could be printed out in a structured 
way (option?) :
	- root
	  +-- cpu
	  +-- mainbus
	  |   +-- pcia
	  |       +-- scsi X

Any ideas comments / suggestions / 'shut-up'remarks ? ;) ???