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Re: ABI Compatibility (was Re: Installation woes for the average user...


From: David Chisnall
Subject: Re: ABI Compatibility (was Re: Installation woes for the average user...)
Date: Wed, 20 May 2009 10:34:47 +0100

On 17 Mar 2009, at 10:28, Yavor Doganov wrote:

This is probably worth having in the (very) distant future, but has
little to do with the question at hand.  My objection was that it's
absolutely useless to bump the soname 1.14 -> 1.15 -> 1.16 (just an
example) when there are only compatible bugfixes and API
additions.  How you version the releases and what is considered
"stable" and "unstable" is completely orthogonal to the library
versioning.

This was the last post on this subject, but apparently the point was not absorbed by anyone. Why did the library version number bump when I updated GNUstep? This left all of my apps and frameworks linked to the old version (which, because the new version had a different name, wasn't overwritten) even though the ABI was compatible. Let me repeat that:

This policy caused every framework and every application to require recompiling (well, technically only relinking, but good luck persuading GNUstep make to do that) FOR NO REASON.

This is exactly the kind of thing that makes distributions reluctant to ship up-to-date GNUstep. Please, please, please, stop it. The soname should only be bumped when the ABI changes in an incompatible way.

David




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