Subject: Re: kern/21311: Generic kernel doesnt compile in 1.6.1_STABLE
To: Mipam <>
From: Lubomir Sedlacik <>
List: netbsd-bugs
Date: 04/25/2003 01:01:16

On Fri, Apr 25, 2003 at 12:49:41AM +0200, Mipam wrote:
> I saw it, but i think something needs to change then.  Then what is
> the difference between setting: CFLAGS+= -pipe and CFLAGS=-pipe ??
> Same for COPTS?  I thought .... += means to add and = means to set.
> What you tell me now is that it makes no difference anyway.  Both +=
> and = SETS the options. So it makes me wonder again, whats the use of
> += anyway if the options are set by += instead of adding something
> above the by default defined options like -O2 in for example?

the order depends.  there is no difference between CFLAGS+=, CFLAGS= or
CFLAGS?= if it's the first one exapanded.  see make(1) for details.


-- Lubomir Sedlacik <>                   --
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