[CFP] Homebrew LLVM

[carlocab]

Title

Homebrew LLVM

Author

Carlo Cabrera, carlo.cabrera@me.com

Distribution

Homebrew is a package manager for macOS and Linux. We package LLVM for use by other packages that rely on it, and as an alternative toolchain for our users, who would otherwise be using their system compiler, or Homebrew GCC.

Abstract (optional)

We aim to provide a complete LLVM distribution that is easy to understand for end-users, doesn't interfere with system installations (i.e. Apple LLVM), and is maintainable by our small team (~25 maintainers for a repository of ~6000 packages).

In this talk, I will present how we configure and test our LLVM build: what we do well, what we could do better, and what we struggle with.

What's unique about the environment you package LLVM for? (optional)

The packaging constraints alluded to above.

What makes your distribution of LLVM unique? (optional)

We seem to have this in common with some of the other submissions, but our distribution is:

• fully relocatable, and;
• works on a wide array of Linux distributions (we require a minimum Glibc version of 2.13)

What might others learn from your experience? (optional)

How to do a full PGO bootstrap build on macOS.

What could be improved in upstream LLVM to make working with it easier as a downstream packager? (optional)

ABI versioning for libLLVM on macOS.

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Reminder that this is meant to be a 15 minute lightning talk; enough to pique
interests but follow up should be done after. Slides can always include links
to more info; we will ask that you send a PR to this repo with your slides when
they are ready.

[nickdesaulniers]

Thanks for taking the time to write up a CFP; we'd be overjoyed to have you present at LLVM Distributors Conf 2021! If you still plan on presenting, this is a reminder to get started on your slides for next week. Once they're done, we will contact you about submitting a PDF of your slides as either a pull request to this repository or via email to the organizer. We hope to have a schedule finalized by EOW; we may iterate on the schedule based on whether presenters have conflicts. Please keep this issue open for attendees to ask questions, or close this issue if you no longer plan on attending. Reminder to keep your talk concise (15 minutes); we wont be doing time for questions in order to fit as much content as possible. Attendees should ask questions here in this github issue.

Awesome; I haven't developed on OSX for the past ~5.5 years, but I have fond memories of homebrew! I love it!