Subject: bug#66637: 29.1; Emacs crashes with activating tree-sitter modes

From: Eli Zaretskii <[email-masked]>
Date: Thu, 19 Oct 2023 15:57:52 +0300

> From: Kristjon Ciko <[email-masked]>
> Date: Thu, 19 Oct 2023 09:17:11 +0000
> 
> 
> How to reproduce:
> 
> ;; Launch Emacs
> emacs -Q
> 
> ;; Install grammars for C and C++
> M-x treesit-install-language-grammar
> ;; Libraries installed to ~/.emacs.d/tree-sitter/libtree-sitter-c.dylib
> and ~/.emacs.d/tree-sitter/libtree-sitter-cpp.dylib
> 
> ;; Open a C file
> C-x C-f test.c
> 
> ;; Activate c-ts-mode

This doesn't crash for me, although I use c-ts-mode all the time.

I'm not on macOS, so either this is macOS-specific, or your personal
copies of the tree-sitter and/or the grammar libraries is faulty.  In
any case, please show the backtrace from the crashes by running Emacs
under a debugger.

Thanks.