GNU bug report logs - #79993
Emacs 30.2 fails to build with treesitter 0.26.2

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Randy J. Ray" <rjray <at> blackperl.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Emacs 30.2 fails to build with treesitter 0.26.2
Date: Thu, 11 Dec 2025 15:13:28 -0800

treesit.c: In function 'treesit_load_language':
treesit.c:749:42: error: implicit declaration of function 
'ts_language_version'; did you mean 'ts_language_abi_version'? 
[-Wimplicit-function-declaration]
  749 |                             make_fixnum (ts_language_version (lang)));
      | ^~~~~~~~~~~~~~~~~~~
      | ts_language_abi_version

Randy

-- 
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
Randy J. Ray      San Jose, CA
rjray <at> blackperl.com
Silicon Valley Scale Modelers: http://www.svsm.org

Message #10 received at 79993-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: "Randy J. Ray" <rjray <at> blackperl.com>
Cc: 79993-done <at> debbugs.gnu.org
Subject: Re: bug#79993: Emacs 30.2 fails to build with treesitter 0.26.2
Date: Fri, 12 Dec 2025 10:48:21 +0200

> Date: Thu, 11 Dec 2025 15:13:28 -0800
> From: "Randy J. Ray" <rjray <at> blackperl.com>
> 
> treesit.c: In function 'treesit_load_language':
> treesit.c:749:42: error: implicit declaration of function 
> 'ts_language_version'; did you mean 'ts_language_abi_version'? 
> [-Wimplicit-function-declaration]
>    749 |                             make_fixnum (ts_language_version (lang)));
>        | ^~~~~~~~~~~~~~~~~~~
>        | ts_language_abi_version

This is known.  But Emacs 30.2 was released before tree-sitter
developers decided to removed that function in 0.26, and we cannot
change history.  Thus, the latest version of tree-sitter supported by
Emacs 30.2 is 0.25.x.

Emacs 31 will support both old and new ABIs, and it could be built
with versions of tree-sitter both before and after 0.26.  If you must
use tree-sitter 0.26, please build the master branch of the Emacs Git
repository instead of Emacs 30.2.  For Emacs 30.2, you will need to
downgrade to the last 0.25.x release of tree-sitter.

So I think we already fixed this problem in the development code, and
I'm therefore closing this bug.

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