There is also a similar intent for Zewo’s POSIX:

https://github.com/Zewo/POSIX/blob/master/Sources/POSIX

It would be great to have something included with Swift.


> On Sep 14, 2016, at 5:59 AM, Alex Blewitt via swift-evolution 
> <[email protected]> wrote:
> 
> Vapor's Core package expresses a target called simply 'libc':
> 
> https://github.com/vapor/core/blob/master/Sources/libc/libc.swift 
> <https://github.com/vapor/core/blob/master/Sources/libc/libc.swift>
> 
> As a result, their Swift files simply say "import libc"
> 
> https://github.com/vapor/core/blob/master/Sources/Core/Lock.swift 
> <https://github.com/vapor/core/blob/master/Sources/Core/Lock.swift>
> 
> Alex
> 
>> On 13 Sep 2016, at 20:29, Brian Gesiak via swift-evolution 
>> <[email protected] <mailto:[email protected]>> wrote:
>> 
>> Resurrecting this discussion since the question of "why does Android import 
>> Glibc?" came up on this swift-corelibs-foundation pull request: 
>> https://github.com/apple/swift-corelibs-foundation/pull/622#discussion_r77848100
>>  
>> <https://github.com/apple/swift-corelibs-foundation/pull/622#discussion_r77848100>
>> 
>> I think that it is also important to ask what the real goal here is.  
>> Foundation is our cross platform compatibility layer, are there specific 
>> deficiencies in the Foundation API that cause a problem here, or is it just 
>> that not all of corelibs Foundation is “done” yet?
>> 
>> When I first proposed the idea, I simply wanted to turn these five lines:
>> 
>>     #if os(Linux) || os(FreeBSD) || os(Android) || os(PS4)
>>         import Glibc
>>     #else
>>         import Darwin
>>     #endif
>> 
>> Into this one line:
>> 
>>     import WhateverNameWeDecideUpon
>> 
>> After all, writing five lines of code for the import is painful, and the 
>> list of `#if os(...) || os(...) || ...` is always expanding.
>> 
>> 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!)
>> 
>> - Brian Gesiak
>> 
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