On Wed, May 31, 2023 at 07:38:38PM +0200, Jiri Vanek wrote: > > Can you clarify this a bit? It sounds like some versions of the JDK in > > Fedora will actually be built in EPEL. I feel that all Fedora packages > > should actually built for Fedora, not RHEL. > > > > Also, what exactly does "latest live EPEL" mean - how is 8 the latest? > > > > I guess basically, can you further explain/clarify exactly which > > versions of what OS which JDKs will be built on, and when those versions > > will change. > > > Jdk is designed, to be severely forward comaptible from os where it was built. > So jdk8, 11 and 17 would be build in oldest live fedora, and repacked > everywhere. The idea is to build them on oldest viable system, as we > can guarantee they will run ok in newer Fedroas.. > java-latest-openjdk however, is built also for epel8 and elep9. Thus > logically the oldest system where we can built it to repack it everywhere > is el8. Then it can be reapcked for el8,el9, and all live fedoras.
IIRC, RHEL-8 forked from Fedora in circa F28 timeframe. Directly comparing RHEL-8 content to Fedora is a bit of a fools errand since RHEL does rebase certain packages periodically, but a decent chunk of RHEL-8 is 5 years old at this point. The most notable part is the compiler toolchain on RHEL-8 is GCC 8.x, which is 5 major releases behind what F39 rawhide uses, and 4 major release behind what F37 uses. RHEL-8 also has a long lifetime left, and thus so does EPEL8. By building JDK on EPEL8, we're fixing the toolchain for JDK in Fedora on a version already 5 years out of date, and by the time EPEL8 goes away, the toolchain will be 10+ years out of date. By building JDK on the oldest stable Fedora release, we're fixing the toolchain on a version that's never going to be much more then 1 year out of date. Same applies to compiler toolchain flags, though where the flags don't depend on GCC version that can be partially mitigated in the JDK spec. Overall, I find the idea of basing Fedora builds on oldest EPEL quite challenging to accept, due to the age differences. It feels contrary to Fedora goal of always being on, or at least very near, the cutting edge. > I do not have hard requirement to build java-latest-openjdk on epel8 and > repack everywhere, but it gave sense. If the hard demand will be to build > also java-latest-opnejdk in oldest fedora, and repack in all fedoras, and > built it in oldest epel, and repack in all epels, then it gave somehow > sesnse too. Although I would conisdered it a bit wasted cycle, it is > acceptable. IMHO it'd be more palatable for the RHEL (EPEL) build stream to be separate from the Fedora build stream. While RHEL and Fedora share heritage, they are ultimately different distros with different goals and needs. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org 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@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
