bug#62072: 29.0.60; tree-sitter interferes with Custom

[Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Po Lu <luangruo@yahoo.com>
>> Cc: emacs-devel@gnu.org
>> Date: Thu, 09 Mar 2023 20:06:51 +0800
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>> > Which missing grammar libraries cause this?  I tried a few, but
>> > couldn't see any warnings.
>> 
>> All you have to do is click on "Programming -> Languages".  Here's one
>> warning message I got:
>> 
>>  ■  Warning (treesit): Cannot activate tree-sitter, because language grammar for ruby is unavailable (not-found): (libtree-sitter-ruby libtree-sitter-ruby.so) No such file or directory
>
> I already tried with ruby: I renamed the grammar library to another
> name, but I don't see any warnings.  That's why I asked.

That's odd... are you sure you don't have another Ruby library somewhere
else?

>> but IIRC I also saw another errors on builds without tree-sitter at all.
>
> That's a different situation, I think (I do see that in a build
> without tree-sitter).

Well, both have to be fixed.

Thanks.