[swift-evolution] [Draft] Unify "import Darwin/Glibc" to simply "Libc"

Xiaodi Wu xiaodi.wu at gmail.com
Wed Oct 5 18:02:06 CDT 2016

On Wed, Oct 5, 2016 at 5:57 PM, Brent Royal-Gordon via swift-evolution <
swift-evolution at swift.org> wrote:

> > On Sep 13, 2016, at 12:29 PM, Brian Gesiak via swift-evolution <
> swift-evolution at swift.org> wrote:
> >
> > I hadn't thought about a unified overlay for POSIX. I think the
> simplified import alone has benefit to warrant its own evolution proposal.
> Would it be possible to have a separate discussion for the POSIX overlay
> idea? Or is there a reason that I'm missing that prevents the import from
> being viable on its own? (Apologies in advance if there's an obvious answer
> to this question!)
> I've heard the argument before that we should do a full overlay, but I
> think this is becoming a case of the perfect being the enemy of the good.
> Having some sort of "just import whatever the system libc is called" module
> would be a significant improvement in practice over the state of the art,
> even if we don't do any other adaptation.
> Here's what I would suggest. We have a convention for exposing "raw"
> imports of C libraries: you call them `C\(libraryName)`. So I would suggest
> we introduce a `CLibc` module which provides a raw import of the system's
> libc. If we later decide to do a full-featured overlay, that's great—we can
> call it `Libc`. But `CLibc` by itself would be an improvement over the
> status quo and a step in the right direction.

I do believe that an even terser name has been suggested in the past for
libc, to avoid the repetition: just `C`.

> --
> Brent Royal-Gordon
> Architechies
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> swift-evolution at swift.org
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