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Date:	Wed, 24 Jan 2007 22:30:28 -0800
From:	"H. Peter Anvin" <>
To:, Mike Frysinger <>,,,, Alexey Dobriyan <>,
	"Robert P. J. Day" <>
Subject: Re: [patch] scrub non-__GLIBC__ checks in linux/socket.h and linux/stat.h

Erik Andersen wrote:
> On Sat Dec 16, 2006 at 01:42:11PM -0500, Mike Frysinger wrote:
>> On 11/30/06, Robert P. J. Day <> wrote:
>>> but there are a few other
>>> cases which still contain compound preprocessor directives such as:
>>>  #if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
>>> having never worked with unifdef before, i guess i was being overly
>>> optimistic in thinking that it, if i "unifdef"ed __KERNEL__, it might
>>> at least simplify the expression.  oh, well ... live and learn.
>> userspace should be worrying about userspace, so having the socket.h
>> and stat.h pollute the namespace in the non-glibc case is wrong and
>> pretty much prevents any other libc from utilizing these headers
>> sanely unless they set up the __GLIBC__ define themselves (which
>> sucks)
>> -mike
> Ack from me.  I'd love to see this applied so uClibc could
> stop have to define __GLIBC__

klibc uses these definitions, but the right thing to do is to have libc 
ask for it:

#if defined(__KERNEL__) || defined(__EXPORT_LINUX_SOCKET_H)

/* ... */


That way, klibc can just

#include <linux/socket.h>

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