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Re: preprocessor/7947: cpp0 -std=gnu99 rejects # comments


From: Marcus Brinkmann
Subject: Re: preprocessor/7947: cpp0 -std=gnu99 rejects # comments
Date: Tue, 17 Sep 2002 21:45:09 +0200
User-agent: Mutt/1.4i

On Tue, Sep 17, 2002 at 08:22:38PM +0100, Neil Booth wrote:
> Marcus Brinkmann wrote:-
> 
> > That is my fault for not being precise enough in my bug report, sorry.
> > 
> > The problem is that gcc calls the preprocessor with this ordering when
> > compiling an assembler file (foo.S) with the -std=gnu99 option.
> > 
> > Try "echo \# foo > foo.S" and "gcc -std=gnu99 -o foo foo.S", this triggers
> > the bug.  -v shows that gcc passes -std=gnu99 to cpp when preprocessing the
> > file.
> 
> Right, but everything you state is intentional.  -lang-asm deliberately
> comes first, otherwise it would clobber various other flags the user
> may have passed, such as -fdollars-in-identifiers, -trigraphs etc.
> 
> The problem you have is that -std=gnu99 applies to the C language, and
> not to assembler.
> 
> What is the reason you need to pass the switch?  If it's to avoid a
> spurious warning, we may be able to disable the warning if -lang-asm.
> If it's to achieve some additional functionality, we may be able to
> retain that functionality if -lang-asm.

Ayup, I just see my mistake.  We are setting -std=gnu99 in CPPFLAGS, not 
CFLAGS. 
D'oh!  I will put the blame elsewhere then :)

Thanks a lot for your patience,
Marcus

-- 
`Rhubarb is no Egyptian god.' GNU      http://www.gnu.org    address@hidden
Marcus Brinkmann              The Hurd http://www.gnu.org/software/hurd/
address@hidden
http://www.marcus-brinkmann.de/




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