Hi, After each Fedora release we do a retrospective with the LLVM package maintainers and talk about how we can improve the LLVM packages[1] in Fedora. We've come up with some ideas for Fedora 41 that we'd like to share to raise awareness and get feedback. Right now these are just ideas, and we plan to write up a formal change proposal once we have decided which of these we are going to implement:
* Spec file merge. We plan to merge the clang, compiler-rt, and libomp packages in with llvm and have them be sub-packages of the llvm package. This will allow us to use the build configuration recommended by upstream and also make it possible to optimize the packages using Profile-Guided Optimizations (PGO). * Build compat packages (e.g. llvm18) as early as possible. When we package a new major release of llvm, we create a compat package so that packages that aren't compatible with the new version can still use the old version. In the past, we've waited to introduce the compat packages until the new version of LLVM was ready (typically during the Beta Freeze). However, this proved to be an issue this release for packages the were ready to switch to the compat packages early in the release cycle, but then had to wait for Beta freeze. * Switch to python-style compat/main packages. In order to make the packaging more consistent between the main package (e.g. llvm) and the compat package (e.g. llvm18), we would retire the un-versioned dist-git for llvm, and create a new versioned dist-git for each new release (e.g. llvm19, llvm20, llvm21 etc.). We would then designate one of these as the 'main version', and that version would produce binary rpms that look like the current main package (i.e. llvm-libs instead of llvm19-libs). * Invert the order of compat/main packages. Instead of having the compat package be the old version, and the main package be the new version, we would have the compat package be newer and the main package be older. This would allow us to introduce a new version of llvm without impacting other packages that depend on the main version of LLVM. If anyone has any feedback on these ideas we'd like to hear it and are happy to discuss these more. Thanks, Tom [1] LLVM Packages are: llvm, clang, compiler-rt, libomp, lld, lldb, llvm-test-suite, libclc, llvm-bolt, libcxx, mlir, flang, python-lit, and polly. -- _______________________________________________ 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
