One of the planned parts of the F21 System Wide Change: BerkeleyDB 6 [1] is the introduction of downstream symbol versioning of both versions of the libraries (libdb with v6 and libdb5 with v5). This part is planned in order to not introduce bugs similar to [2]. However, if we introduce downstream versioning (as upstream is generally unresponsive), then we face the problem similar to [3]. In short, if we introduce the downstream versioning, we will ship library with ABI incompatible with upstream ABI. If we won't, applications with modules/plugins (ie. Apache with mod_perl) that each use different version of the library may break due to double symbols (one from the v5 and other from v6, and ld would not know which symbol is which). I'd like to ask for suggestions on how to resolve this problem. The ideal solution would be to convince upstream to version their symbols (and I will contact them about it), but from my experience with them this is very unlikely. Or we could try to keep an eye on troublesome applications and force them and all their modules/plugins to be built with the same version of libdb, but I have no idea if this is even possible. As I stated above, I welcome any suggestions. I would also like to hear from someone responsible for the distro architecture which of the aforementioned issues is more painful for us, so we know which path to take if no complete solution is found. Best regards and thanks for replies, Jan [1] https://fedoraproject.org/wiki/Changes/BerkeleyDB_6 [2] https://bugzilla.redhat.com/show_bug.cgi?id=768846 [3] https://bugzilla.redhat.com/show_bug.cgi?id=1045013 -- Jan Stanek - Red Hat Associate Developer Engineer - Databases Team -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct