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RE: cpplib: Nix -g3.
- To: 'Zack Weinberg' <zackw at Stanford dot EDU>, Neil Booth <neil at daikokuya dot demon dot co dot uk>
- Subject: RE: cpplib: Nix -g3.
- From: David Korn <dkorn at pixelpower dot com>
- Date: Fri, 12 Jan 2001 13:54:04 -0000
- Cc: Jakub Jelinek <jakub at redhat dot com>, gcc at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
>-----Original Message-----
>From: Zack Weinberg [mailto:zackw@Stanford.EDU]
>Sent: 12 January 2001 04:41
>On Thu, Jan 11, 2001 at 06:54:40PM +0000, Neil Booth wrote:
>> Zack Weinberg wrote:-
>>
>> > That too might've been something to do with. IIRC we're supposed to
>> > spit out
>> >
>> > # 1 "file.c"
>> >
>> > in between each builtin macro definition. 1 might have been 0. This
>> > was a very long time ago.
>>
>> Well, the nice thing is that this is the natural behaviour when you
>> remove those if statements. It also re-preprocesses correctly with
>> -fpreprocessed, with the patch below to prevent double-initialization
>> of builtins and command line switches. I must have got something
>> right when I moved all this stuff to cppmain.c :-)
>>
>> As for # 1 file.c or # 0 file.c, who's the right person to ask? If 0
>> is the line number we want, it won't be too hard to correct, I think.
>
>The gdb people might know. I'd say leave it as 1 until someone
>complains.
PMFBI, but I think something I've spotted in the vxworks port might be
relevant to this issue: _BIG_ENDIAN gets defined in one of the OS header
files, but it's also passed in the specs as a -D flag. Is this the situation
you're talking about? Because what I see for a line number is:
---
F:/Tornado/target/h/types/vxArch.h:46: warning: `_BIG_ENDIAN' redefined
*Initialization*:1: warning: this is the location of the previous definition
---
Would that be line 0, by any chance?
DaveK
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