Dropping support for OSX 32 bit

[Iain Buclaw]

On Thursday, 10 January 2019 at 04:34:30 UTC, Nicholas Wilson 
wrote:
>
> 1) Does anyone actually build for 32bit OSX?

Yes, eventually, at some point.  Sometime over the next month, 
I'll be adding druntime support for 10.5, as its the only version 
that fully supports all architecture combinations for darwin 
(x86, x86_64, ppc, ppc64).  For bootstrapping, it's easier to 
start at the most common baseline.

> 2) Is everyone happy with accelerating EOL for D support of 
> OSX32?
>

So long as druntime C bindings are left intact - all rt stuff 
regarding OSX support not compiler agnostic anyway - dmd compiler 
is fine to do what it wants.