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Re: [pgsql-packagers] Getting to 8.3 beta1

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: sfrost(at)snowman(dot)net, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <heikki(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org, pgsql-packagers(at)postgresql(dot)org
Subject: Re: [pgsql-packagers] Getting to 8.3 beta1
Date: 2007-09-28 16:00:52
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Lists: pgsql-hackers

Zdenek Kotala wrote:
> Stephen Frost wrote:
>> * Zdenek(dot)Kotala(at)Sun(dot)COM (Zdenek(dot)Kotala(at)Sun(dot)COM) wrote:
>>> I'm for bumbing. Because if we use same number it also means that 
>>> new binary will able to use old library. But if there are two new 
>>> functions number must be increased. Standard practice how ELF loader 
>>> works is following:
>>> Each library could have tree numbers libxxx-X.Y.Z. Loader/Linker 
>>> ignores Z number. It means any binaries can be linked e.g. with 
>>> X.Y.Z+1 or X.Y.Z-1. This is used for bugfixing. Middle number Y 
>>> means that binaries which requires Y can also use Y+1 (and linker 
>>> takes it), but not Y-1. It is used for adding new thing into 
>>> interface - backward compatible. Change in major number X means it 
>>> is not backward compatible libraries.
>> Right, so bump the minor and leave the major (and the overall 'soname')
>> the same.
>>> In PostgreSQL perspective, we use only major number.  We can 
>>> increase main number (X) or best way is add Y and keep major number 
>>> same. But I don't know if it is possible in current infrastructure 
>>> and if it will work everywhere.
>> I'm confused by this.  I see both in Makefile.shlib and on my system
>> that we have a minor version so I don't entirely follow when you say "we
>> use only major number".  
> I'm Sorry for confusion, I overlooked it. You have right. 
> Unfortunately struct Port has been modified and by my opinion it means 
> we must bump major version. See 

Uh, that's the backend, not the client lib, no?



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