[sane-devel] Version numbering (was Re: Fix PPA build)

Rolf Bensch rolf at bensch-online.de
Sat May 13 09:12:53 UTC 2017

Hi All,

After reactivating my Ubuntu ppa it uses for the recent version

OK, this breaks the old version from last July (1.0.26+git[date]), but I
communicated 2 instructions how the users can jump onto the new versions.

Don't worry about the Ubuntu distribution versions. They're still using

Using 'git describe' is an good idea. But please don't forget that we
must be able to compile the tarballs provided from sane's website and
alioth *without* installed git packages or with the correct version.

A header file (e.g. git-describe.h) could be a solution, which holds the
git version and has been created before creating the tarballs. If we're
compiling against a git repository, this file can be rewritten from
'make' and must be excluded from the git repository.

Hope this helps.


Am 13.05.2017 um 05:10 schrieb Olaf Meeuwissen:
> Hi Allan,
> m. allan noah writes:
>> this sounds like a reasonable plan to me, though I wonder what effect
>> it will have on the currently installed git-based packages. They are
>> already 1.0.26+gitxxxx, and they will remain so after this release
>> (though the xxxx part will be of a different format).
> Most of the cases I've seen use a date for the xxx part.  If so, there'd
> be no problem as the git snapshots after the 1.0.26 release will have a
> later date.
> Distributions can also work around with an "epoch", so you get something
> like "1:1.0.26+gitxxxx", but that's a bit ugly.
> But we could also just admit that we've more or less goofed up on the
> versioning for our master branch, skip 1.0.26 and release as 1.0.27.
> Doing so will bypass any of the scenarios you worry about.
> I'd go with 1.0.27 but am fine with 1.0.26 for the release and add a
> +git on master (for now while we investigate using `git describe`).
> Hope this helps,
> --
> Olaf Meeuwissen, LPIC-2            FSF Associate Member since 2004-01-27
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