On Sat, Jun 17, 2023 at 01:15:59AM -0400, Jeff King wrote: > Ah, I see. It looks like it depends on which version of curl is using. > Perhaps the macOS image in CI has been updated (or maybe the new version > just became available via brew or something). I was able to replicate on > my Linux system by building and linking against curl 8.1.0, and the > patch above (modulo some missing parentheses) fixes it. Oh, and just to solve this one remaining riddle: it was indeed a change in the images. If you click through to the log of the failing osx-clang job in your first link, then expand "Set up job" and then "Runner image", you'll see that it was using: https://github.com/actions/runner-images/blob/macOS-12/20230612.1/images/macos/macos-12-Readme.md which mentions curl 8.1.2. Whereas on your other link (where the jobs did not fail), it was last month's: https://github.com/actions/runner-images/blob/macOS-12/20230516.1/images/macos/macos-12-Readme.md which has curl 8.0.1. So presumably every CI run from here forward will fail unless we patch it. -Peff