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From:   Junio C Hamano <gitster@pobox.com>
To:     Jeff King <peff@peff.net>
Cc:     Carlo Marcelo Arenas =?utf-8?Q?Bel=C3=B3n?= <carenas@gmail.com>,
        git@vger.kernel.org, avarab@gmail.com,
        "Randall S . Becker" <rsbecker@nexbridge.com>
Subject: Re: [PATCH] wrapper: remove xunsetenv()
References: <20211029212705.31721-1-carenas@gmail.com>
        <YXxpjLhiguq4HY6g@coredump.intra.peff.net>
        <YXxs4NZmpjhRkoYA@coredump.intra.peff.net>
Date:   Fri, 29 Oct 2021 14:58:48 -0700
In-Reply-To: <YXxs4NZmpjhRkoYA@coredump.intra.peff.net> (Jeff King's message
        of "Fri, 29 Oct 2021 17:51:28 -0400")
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Jeff King <peff@peff.net> writes:

> However, according to the unsetenv() manpage:
>
>   Prior to glibc 2.2.2, unsetenv() was prototyped as returning void;
>   more recent glibc versions follow the POSIX.1-compliant prototype
>   shown in the SYNOPSIS.
>
> So it is POSIX to return an int, but that gives us at least one platform
> where unsetenv() returns void (or used to). glibc 2.2.2 is 2001-era, so
> that may be old enough that we don't care. But it makes me wonder if
> other older or obscure platforms will run into this.

Ahh, OK.  Well, we will hear from them soon enough.  It is not like
this is anything urgent.

Thanks.