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Date: Sat, 25 Apr 2020 00:58:08 -0400
From: Rich Felker <>
Subject: Re: Macro-based advertisement of libc extensions

On Wed, Apr 22, 2020 at 01:38:25PM -0400, Rich Felker wrote:
> This is proposal I've mentioned in various settings for a while, but
> that should be discussed more thoroughly in a proper setting, and
> libc-coord is the setting I'd been looking to do it in.
> Proposal:
> I want to establish a common convention, with participation by
> multiple (Linux and non-Linux, ideally BSDs and others too) libc
> implementations, for macros defined by the implementation to advertise
> nonstandard extensions offered for use by applications.
> [...]

I think next step from my side to make this more concrete will be
making a list of extensions musl offers that could be advertised this
way and candidate names for them. Anyone up for doing the same for
other implementations?


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