Re: library versioning problem

[Gary V. Vaughan]

Hi Lucien,

On 30 Mar 2007, at 16:59, Lucien GENTIS wrote:
> Gary V. Vaughan a écrit :
> > On 29 Mar 2007, at 15:48, Lucien GENTIS wrote:
> > > Gary V. Vaughan a écrit :
> > > > On 26 Mar 2007, at 12:47, address@hidden wrote:
> > > > > Quoting "Gary V. Vaughan" <address@hidden>:
> > > > > > On 25 Mar 2007, at 16:50, Lucien GENTIS wrote:
> > > > > > > That means:
> > > > > > > CURRENT is replaced by CURRENT - AGE      (69 - 38 = 31)
> > > > > > > REVISION is replaced by AGE
> > > > > > > AGE is replaced by REVISION
> > > > > >
> > > > > > http://www.gnu.org/software/libtool/manual.html#Libtool- 
> > > > > > versioning
> > > > >
> > > > > First thanks for your answer
> > > >
> > > > No problem.
> > > >
> > > > > I've already red this doc, but it doesn't explain why current,  
> > > > > revision and age number are changed
> > > >
> > > > Sure it does.
> > > >
> > > > You are confusing the *library* version with the *interface*  
> > > > version.  C:R:A
> > > > allows a developer to describe the interface version and  
> > > > compatibility details
> > > > for their library.  The soname and filename of the eventual  
> > > > library is an
> > > > implementation detail that depends how *library* versions work  
> > > > on the
> > > > particular OS you build on -- and will be different on Linux vs  
> > > > Windows vs
> > > > AIX vs HPUX etc
> > > So under Linux, if Major=C-A, Minor=A, Micro=R, say I develope a  
> > > library starting with 0.0.0:
> > > According paragraph 6.3 of http://www.gnu.org/software/libtool/ 
> > > manual.html,
> > > Interfaces and library versions progress as follow:
> > >
> > > [[snip]]
> > >
> > > but Changing an interface modifies library version from 0.3.1 to  
> > > 1.3.0
> > > and removing an interface modifies library version from 2.3.0 to  
> > > 6.0.0
> > >
> > > Aren't library versions increasing a little too fast ?
> >
> > Too fast for what?  Are you worried about running out of numbers? ;-)
>
> I just thought about publishing "mylib-85.0.0"  (seems not very  
> serious ;-))

Are you updating C:R:A every time you change/remove/add an  
interface?  In
that case you will get through numbers *very* quickly unless your API is
extremely stable.  The libtool documentation recommends that you only  
update
C:R:A just before each release.

Cheers,
        Gary
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