On Wed, Jun 24, 2020 at 09:22:39AM +0200, Petr Pisar wrote: > On Wed, Jun 24, 2020 at 06:51:36AM +0000, Zbigniew Jędrzejewski-Szmek wrote: > > I think there's some fear that "name mangling" is not a general > > solution, and we'd have cases where names conflict. I think the > > concern is realistic, but not a big issue in practice. With some > > careful naming guidelines we are able to resolve naming conflicts, and > > I'm sure we could extend the guidelines to multiple versions of language > > stacks or whatever. We'd probably have slightly longer names or packages, > > but that's not the end of the world. > > > Namespacing RPM package names is only a tip of the iceberg. You need to > namespace RPM requires, provides, shared library sonames, shared library > symbols, header files, header file symbols, pkg-config files, manual pages, > cross references in the manual pages, executable names etc. You need to > namespace everything if you aim for a parallel installability. That's the > reason why modularity does not tackle it and instead conflicts the concurent > versions by filtering the packages from the concurent streams. I am very much aware that making things parallel-installable is an order-of-magnitude harder than just parallalel-available. P-I is certainly not going to come for free and would require some careful packaging. But determined packagers can (and do) make it work. Also, some cases could be easier, for example different minor versions of python (e.g. 3.x and 3.y). Another example is P-I of different so-versions of libraries: Debian has been doing this at scale since forever, so it's clearly not that hard. The point I was trying to make is that we need a solution that works for the easy case (P-A), but can allow handling the hard case (P-I) too with additional preparation. Zbyszek _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
