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Re: Global Revision keyword, again and again

From: James FitzGibbon <jfitzgibbon_at_primustel.ca>
Date: 2005-07-30 16:24:44 CEST

On Jul-30-05, at 8:39 AM, Florian Weimer wrote:

>> Is there some reason that the 'static char rcsid[] = "$Id$' method
>> won't do what is being asked for here?
>>
>
> Doesn't work for header files, and I doubt there is an efficient way
> to display the version numbers in something like an About box.

You can do a two-pass build where you build the binary, run ident (or
grep for headers) to dump that into another file that defines a
static string and re-build with that file included. Then you refer
to that large string in an about box. Ug.

Merant Configuration Builder has a feature where it can embed
information about how a binary was created (or an object file or
library) when it builds it. It basically sticks a block of metadata
at the end of the binary, where the OS will ignore it. I believe
that if you link against the correct library, you can get that info
back at runtime.

Of course, the metadata includes how it was built in addition to the
revision of the source file (it integrated with PVCS), so this isn't
really something that svn can take on.

I think that the solution to this is so varied based upon the type of
application, programming language, build environment and runtime
environment that to try to solve it in svn is a pointless exercise.

-- 
j.
James FitzGibbon
Systems Developer, Primus Telecommunications Canada
416.644.6111
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Received on Sat Jul 30 16:26:31 2005

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