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From: Robert Millan <rmh@freebsd.org>
To: Warner Losh <imp@bsdimp.com>
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Cc: Kostik Belousov <kostikbel@gmail.com>, Adrian Chadd <adrian@freebsd.org>,
	freebsd-current@freebsd.org, freebsd-arch@freebsd.org
Subject: Re: [PATCH] Detect GNU/kFreeBSD in user-visible kernel headers
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2011/11/16 Warner Losh <imp@bsdimp.com>:
> My second reaction was why not have
>
> #ifndef __FreeBSD_kernel__
> #define __FreeBSD_kernel__ __FreeBSD__
> #endif
>
> in sys/param.h and then just change __FreeBSD__ to __FreeBSD_kernel__ in =
the headers that are affected? =C2=A0But I'm not quite sure what effects th=
at would have on your environment.

I'm fine with this.

> Why do you think people wouldn't be fond of the __FreeBSD_kernel__ being =
defined?

See archived discussion:

http://lists.freebsd.org/pipermail/freebsd-hackers/2011-July/035721.html

particularly this mail in which you participated:

http://lists.freebsd.org/pipermail/freebsd-hackers/2011-July/035823.html