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Date: Mon, 16 Dec 2002 01:17:30 +0100 (CET)
From: Steffen Persvold <sp@scali.com>
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To: Keith Owens <kaos@ocs.com.au>
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Subject: Re: How to do -nostdinc?
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On Sun, 15 Dec 2002, Keith Owens wrote:

> There are two ways of setting the -nostdinc flag in the kernel Makefile :-
> 
> (1) -nostdinc $(shell $(CC) -print-search-dirs | sed -ne 's/install: \(.*\)/-I \1include/gp')
> (2) -nostdinc -iwithprefix include
> 
> The first format breaks with non-English locales, however the fix is trivial.
> 
> (1a) -nostdinc $(shell LANG=C $(CC) -print-search-dirs | sed -ne 's/install: \(.*\)/-I \1include/gp')
> 
> The second format is simpler but there have been reports that it does
> not work with some versions of gcc.  I have been unable to find a
> definitive statement about which versions of gcc fail and whether the
> problem has been fixed.  Anybody care to provide a definitive
> statement?
> 
> If kernel build cannot rely on gcc working with -nostdinc -iwithprefix include
> then we need to convert to (1a).

Well, it works fine with gcc-2.91.66 (egcs-1.1.2 release), gcc-2.96 (RH 
7.{1,2,3} versions), and gcc-3.2 (RH 8.0 version)

Of course there are other versions out there but 2.91 is rather old...

Regards,
-- 
  Steffen Persvold   |       Scali AS      
 mailto:sp@scali.com |  http://www.scali.com
Tel: (+47) 2262 8950 |   Olaf Helsets vei 6
Fax: (+47) 2262 8951 |   N0621 Oslo, NORWAY

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