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Re: [PATCH] Add -nostdinc to TARGET_CFLAGS


From: Felix Zielcke
Subject: Re: [PATCH] Add -nostdinc to TARGET_CFLAGS
Date: Sun, 15 Nov 2009 13:42:56 +0100

Am Sonntag, den 15.11.2009, 13:32 +0100 schrieb Robert Millan:
> On Sun, Nov 15, 2009 at 12:50:39PM +0100, Felix Zielcke wrote:
> > > > $ srcdir=$PWD builddir=$PWD gcc -isystem=$srcdir/include 
> > > > -I$srcdir/include -I$builddir -I$builddir/include test.c -o test && ls 
> > > > test
> > > > test
> > > > $ srcdir=$PWD builddir=$PWD gcc -nostdinc -isystem $(gcc 
> > > > -print-file-name=include) -I$srcdir/include -I$builddir 
> > > > -I$builddir/include test.c 
> > > > test.c:2:20: error: stdint.h: No such file or directory
> > > 
> > > We used -isystem as a way of excluding system headers but not gcc headers.
> > > With the -print-file-name trick this seems to be no longer necessary, 
> > > right?
> > > 
> > > So why not "-nostdinc -I$(gcc -print-file-name=include)" instead?
> > 
> > I think we should use -isystem for the gcc internal header files not -I,
> > but I just tested experimental branch with -I instead of -isystem and
> > also compiles cleanly (except the usual grub.texi warnings)
> 
> Seems fine.  Thanks for investigating this.

You're welcome.
I commited this now except that I used now $TARGET_CC.
Makes more sense inside TARGET_CPPFLAGS.


-- 
Felix Zielcke
Proud Debian Maintainer and GNU GRUB developer





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