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/> Download attachment "OpenPGP_signature" of type "application/pgp-signature" (834 bytes)
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