On Jan 10, 2023, at 11:38 PM, Gerd Möllmann <gerd.moellmann@gmail.com> wrote:
GDB’s support for macOS is limited to x86_64, it doesn’t run on Apple silicon. You can install GDB with Homebrew on x86_64.
If you want to use LLDB anyway, etc/DEBUG has some instructions.
Thank you for the suggestions. I didn’t get as far as applying them, as I’ve found over the last week that the nightly Emacs builds don’t seem to exhibit this problem any longer. (Today, emacs-version reports "GNU Emacs 30.0.50 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60 Version 10.14.6 (Build 18G95)) of 2023-01-16.”)
Can you think of any recent patches that may have fixed this problem deliberately?