About #sccs

About #sccs

[Luca Benini]

Hi all,

I found in (cpp.info.gz) this

[cpp info]
The `#sccs' directive is recognized, because it appears in the
header files of some systems.  It is a very old, obscure, extension
which we did not invent, and we have been unable to find any
documentation of what it should do, so GCC simply ignores it.

[Sun  FORTRAN 77 4.0 User Guide)
Some developers put one or more SCCS ID keywords into each file, but 
that is optional. These keywords are later identified with a version 
number each time the files are checked in with an SCCS get or delget 
command. There are three likely places to put these strings:[...]


I believe i've resolved the Obscure, the Arcane mister of #sccs ... ;-)

Luca

-- 
But how can I implement unimaginable chaos in my compiler?
				-Geerhardt Goos-

Re: About #sccs

[Patrick McFarland]

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On Monday 06 December 2004 03:39, Luca Benini wrote:
> [Sun  FORTRAN 77 4.0 User Guide)
> Some developers put one or more SCCS ID keywords into each file, but
> that is optional. These keywords are later identified with a version
> number each time the files are checked in with an SCCS get or delget
> command. There are three likely places to put these strings:[...]

So its something like CVS's $Id$?

-- 
Patrick "Diablo-D3" McFarland || unknown@panax.com
"Computer games don't affect kids; I mean if Pac-Man affected us as kids, we'd 
all be running around in darkened rooms, munching magic pills and listening to
repetitive electronic music." -- Kristian Wilson, Nintendo, Inc, 1989

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Re: About #sccs

[Luca Benini]

Patrick McFarland wrote:
> On Monday 06 December 2004 03:39, Luca Benini wrote:
> 
>>[Sun  FORTRAN 77 4.0 User Guide)
>>Some developers put one or more SCCS ID keywords into each file, but
>>that is optional. These keywords are later identified with a version
>>number each time the files are checked in with an SCCS get or delget
>>command. There are three likely places to put these strings:[...]
> 
> 
> So its something like CVS's $Id$?
> 
Yes.

-- 
But how can I implement unimaginable chaos in my compiler?
				-Geerhardt Goos-

Re: About #sccs

[Nathan Sidwell]

Luca Benini wrote:
> Hi all,
> 
> I found in (cpp.info.gz) this
> 
> [cpp info]
> The `#sccs' directive is recognized, because it appears in the
> header files of some systems.  It is a very old, obscure, extension
> which we did not invent, and we have been unable to find any
> documentation of what it should do, so GCC simply ignores it.
> 
> [Sun  FORTRAN 77 4.0 User Guide)
> Some developers put one or more SCCS ID keywords into each file, but 
> that is optional. These keywords are later identified with a version 
> number each time the files are checked in with an SCCS get or delget 
> command. There are three likely places to put these strings:[...]
> 
> 
> I believe i've resolved the Obscure, the Arcane mister of #sccs ... ;-)

we know #sccs is something to do with SCCS, but what is not known is what it
should do to the resulting object file.  The sun manual appears to
indicate that you can put $Id$ in a fortran file.

nathan

-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk

Re: About #sccs

[Luca Benini]

Nathan Sidwell wrote:
> should do to the resulting object file.
dropped, i think


-- 
But how can I implement unimaginable chaos in my compiler?
				-Geerhardt Goos-

Re: About #sccs

[Manfred Hollstein]

On Mon, 06 Dec 2004, 17:30:32 +0100, Luca Benini wrote:
> Nathan Sidwell wrote:
> >should do to the resulting object file.
> dropped, i think

IIRC, on archictures using object file formats being able to store
data in sections not being loaded into memory upon execution, such
strings went into such a ".comment" section. This should be easily
doable with nowadays ELF, but instead of #sccs, something like
'#pragma ident "whatsover"' might be more appropriate.

HTH, cheers.

l8er
manfred