Date: Mon, 31 Jan 2005 20:18:58 -0800
From: Matt Mackall <mpm@selenic.com>
To: Horst von Brand <vonbrand@inf.utfsm.cl>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/8] base-small: CONFIG_BASE_SMALL for small systems
Message-ID: <20050201041858.GT2891@waste.org>
References: <1.687457650@selenic.com> <200502010055.j110tWbd022651@laptop11.inf.utfsm.cl>
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On Mon, Jan 31, 2005 at 09:55:32PM -0300, Horst von Brand wrote:
> Matt Mackall <mpm@selenic.com> said:
> > This patch series introduced a new pair of CONFIG_EMBEDDED options call
> > CONFIG_BASE_FULL/CONFIG_BASE_SMALL. Disabling CONFIG_BASE_FULL sets
> > the boolean CONFIG_BASE_SMALL to 1 and it is used to shrink a number
> > of core data structures. The space savings for the current batch is
> > around 14k.
> 
> Why _two_ config options?

Um, Andrew made me do it?

One option is an int and is used thusly:

#define FOO (CONFIG_BASE_SMALL ? 1 : 1000)

But it's also sometimes useful to have two opposing options so that
you can use:

obj-(CONFIG_OBJ_A) += a.obj obj-(CONFIG_OBJ_B) += b.obj

-- 
Mathematics is the supreme nostalgia of our time.
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