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July 2004
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2004.07.11 14:27 "Re: unintentional ABI change between 3.5 and 3.6?", by Bob Friesenhahn
On Sat, 10 Jul 2004, Frank Warmerdam wrote: > My other reaction to this is that I didn't realize the soname was actually > tied to the library version. My understanding was the libtool/shared library > versions are generally now not tied directly to the public versions of > libraries > but instead are otherwise meaningless numbers updated whenever needed. This > is the whole -version-info stuff for libtool, right? Perhaps we haven't been > doing it that way for libtiff and should. That is, I think the sonames > should > be decoupled from the published release numbers. Right. Libtool's versioning rules should be strictly followed. The numbering on the shared library should not be based on the release version. There is a problem with FreeBSD since for some reason (probably to deal with some past incompatiblity) its libtiff.so uses a .4 extension rather than .3. Installing libtiff from the official libtiff distribution package renders lots of installed software unusable. There are likely other such cases. I encourage libtiff to study existing library version usage and consider this when establishing the base version for the configure-based release. Skipping ahead a couple of base version numbers is likely a wise idea in order to avoid destroying existing installs and to ensure that everything works once libtiff starts following library versioning rules. Bob ====================================== Bob Friesenhahn bfriesen@simple.dallas.tx.us http://www.simplesystems.org/users/bfriesen