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Re: libtool versioning and sonames

From: Andreas Metzler
Subject: Re: libtool versioning and sonames
Date: Sun, 28 Oct 2007 13:28:54 +0100
User-agent: tin/1.9.2-20070201 ("Dalaruan") (UNIX) (Linux/2.6.22-2-686 (i686))

Ralf Wildenhues <address@hidden> wrote:
> * Andreas Metzler wrote on Sun, Oct 28, 2007 at 09:34:25AM CET:
>> [...] However, the way libtool
>> tries to represent this information in sonames (on Linux) is rather
>> strange, it goes straight from to Is
>> this huge jump just bug or is there a reason for it?

> The reason for it is simplicity in the version number calculation.
> There is no requirement for version numbers to be consecutive except
> for "consecutive looks nicer" and the finite number space.  I assume
> its pressure to be far lower than the incompatible change a different
> version number calculation would make.

Thanks for the explanation.

> The way libtool computes them, it even causes different major version
> numbers on different systems, so the above jump is even specific to the
> linux version_type and not all types.

I have somehow managed the evade the real question:

Are there libtool-supported archs whose versioning will break if we do
num     c       r       a
2.1.1   22      1       9
2.1.2   14      0       0

instead of
num     c       r       a
2.1.1   22      1       9
2.1.2   23      0       0

(I know it would work on linux, resulting in
thanks, cu andreas
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'

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