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Date: Wed, 23 Nov 2022 16:11:45 +0100
From: Alejandro Colomar <alx.manpages@...il.com>
To: noloader@...il.com, musl@...ts.openwall.com
Cc: Stefan Puiu <stefan.puiu@...il.com>, Guillem Jover <guillem@...rons.org>,
Andrew Clayton <andrew@...ital-domain.net>, linux-man@...r.kernel.org,
Michael Kerrisk <mtk.manpages@...il.com>, Alejandro Colomar
<alx@...nel.org>, Brian Inglis <Brian.Inglis@...tematicsw.ab.ca>,
Rich Felker <dalias@...c.org>
Subject: Re: Re: [PATCH] memmem.3: Added list of known systems where
this is available
Hi Jeffrey,
On 11/23/22 15:55, Jeffrey Walton wrote:
> On Wed, Nov 23, 2022 at 9:29 AM Alejandro Colomar
> <alx.manpages@...il.com> wrote:
>> ...
>>>> In any case I also find it useful to have this kind of portability
>>>> information when deciding what to use in code.
>>
>> And I must admit it's also useful to me (this all started because Andrew and I
>> had to use memmem(3) at a project where macOS compatibility is relevant --not
>> critical, but relevant--).
>
> If you are a die-hard free software person using GNU gear, then Gnulib
> provides memmem. There's no need to worry about availability or
> portability courtesy of Gnulib. See
> https://www.gnu.org/software/gnulib/manual/html_node/memmem.html .
Thanks!
However, for this project I was talking about, it's not an option; such a
dependency would not be accepted.
BTW, personally, I always found very confusing the usage of Gnulib compared to
normal packaged libraries. Maybe it's just me; don't know. It also forces you
to use GNU autotools, which I don't like at all. I prefer the approach of
libbsd, which just provides a couple of pc(5) files to allow using as a library
or as an overlay over the system libc, and after that you're fine with whatever
build system you prefer. I know it has some issues, such as
<https://gitlab.freedesktop.org/libbsd/libbsd/-/issues/5>, which may be the
reason Gnulib works that way, I don't know.
Guillem, do you think that issue with libbsd and <queue.h> can be fixed? Or is
it an inherent issue of the way the overlay works? Maybe it would be
interesting to fix it, as a proof of concept that something like Gnulib could be
implemented in that way.
Cheers,
Alex
--
<http://www.alejandro-colomar.es/>
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