From: Collin Funk <collin.funk1@gmail.com>
Date: Tue, 09 Dec 2025 04:03:47 GMT
Subject: Re: t3900 failure on macOS, iconv(3) broken?
Message-ID: <87sedkjo7w.fsf@gmail.com>
In-Reply-To: <CAHTeOx-By55enMxt7YkCd6e=TbE7v+1ipN3wSFQc2n+9F_L7_Q@mail.gmail.com>

Yee Cheng Chin <ychin.macvim@gmail.com> writes:

>> * macOS 14.8.2
>>   * These tests pass.
>> It looks like the system iconv is broken on macOS 15 or later.
>
> I'm a little surprised that these tests pass in macOS 14 with native
> (aka not from Homebrew) iconv. Apple replaced GNU iconv with a custom
> version in macOS 14, which also caused a fair bit of breakages among
> other third-party software. I would have expected this CI test to
> break on macOS 14 unless this is a new behavior change / bug
> introduced in macOS 15.
>
> But yes, one way to fix it is to just provide the Homebrew GNU iconv
> via ICONVDIR.

FWIW, the GNU iconv maintainer expressed frustration with the buggy
iconv implementation in macOS 14 [1]. He blamed Apple-specific patches
on FreeBSD's implementation.

Collin

[1] https://lists.gnu.org/archive/html/bug-gnulib/2024-05/msg00375.html