Re: Using libtool -release versus -version-info breaks packages (ITS#3035)

[Kurt@OpenLDAP.org]

At 06:44 AM 3/24/2004, sfrost@snowman.net wrote:

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>* Kurt D. Zeilenga (Kurt@OpenLDAP.org) wrote:
>> Does anybody have experience with doing something like:
>>       -release 2.2 -version-info 1:0:0
>>=20
>> That is, do such constructions works on most platforms.
>> Libtool seems to construct:
>>   # Names of this library.
>>   library_names=3D'liblber-2.2.so.1 liblber-2.2.so liblber.so'
>>=20
>>   # The name of the static archive.
>>   old_library=3D'liblber.a'
>>=20
>> If this works, this might met our requirements.  Comments?
>
>Alright, this doesn't really work because it means that -llber could
>actually mean any of the versions which is generally not what you really
>want.

Of the choices, this choice is the best fit for the project.
We want -llber to continue to work.

>You should be making a distinction between the major releases in
>OpenLDAP because in general you don't expect people to be able to move
>=66rom 2.0 to 2.2 w/o changing something (API differences).

I expect people to be able to make such moves.  An application designed
for 2.0 should compile just fine with 2.2.

>Use a different library name for the major versions (2.0, 2.1, 2.2, 3.0,
>etc)...

No.

>Your idea above probably wouldn't actually be a problem for Debian since
>we don't allow people to try and have multiple -dev packages installed
>at the same time (because of the .so symlink) anyway, but it wouldn't
>really be much fun for us to deal with in the packaging.  It's also not
>something we'd recommend.

Funny... I actually got the idea from the Debian Library Packaging Guide. :-)

>What I think we probably *would* do is introduce symbol versioning which
>then followed the SONAME, so something like- LDAP_2_2_SO_0,=20
>LDAP_2_2_SO_1.

I don't think symbol versioning is supported broadly enough for us
to use it (in official releases).  But if you want to, have fun.

Kurt