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I've verified that DB 2.7.5 (the version on the main branch) is not binary compatible with DB 2.4.14 (the version included with 2.1.x). Sendmail cannot create the aliases database (/etc/aliases.db) anymore. If you compare db.h between those versions (using the CVS web browser on sourceware) you'll see that a lot of flags have been renumbered. In particular the DB_TRUNCATE flag, which is causing my sendmail troubles. This means that we should either bump the libdb soname, or use versioning to create functions that map the old flags onto the new ones. I think the latter involves quite some work, and is not guaranteed to result in total binary compatibility. So personally, I'm in favour of bumping the soname. Mark
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