version: multiple conditions

[Xiaoxi via Digitalmars-d]

On Saturday, 13 June 2015 at 21:19:28 UTC, bitwise wrote:
> On Sat, 13 Jun 2015 17:16:04 -0400, weaselcat 
> <weaselcat at gmail.com> wrote:>
>> iirc this falls under the "walter dislikes it so we won't have 
>> it" category.
>
> As Andrei said at DConf though, consensus requires at least 3 
> people ;)
>
>   Bit

The current design encourages using more finegrained features 
instead of the more blunt Os level versions.

version(iOS) { version = pthread;}
version(Android) { version = pthread;}

In the rest of the file simply check for pthread instead of OS.