Looking at

https://github.com/macports/macports-ports/blob/master/aqua/iTerm2/Portfile 
<https://github.com/macports/macports-ports/blob/master/aqua/iTerm2/Portfile>

The port is already limited to 10.12 or newer…

I do still wonder if that couldn’t be extended by using the compiler black list 
port group accordingly...

> On 28 Jul 2018, at 10:05 pm, Mark Anderson <e...@emer.net> wrote:
> 
> Turns out I'm wrong, it will run 10.10+, but will only build from source on 
> 10.13 due to a Xcode 9.4 requirement.
> 
> —Mark
> _______________________
> Mark E. Anderson <e...@emer.net <mailto:e...@emer.net>>
> 
> 
> On Sat, Jul 28, 2018 at 4:53 PM Chris Jones <jon...@hep.phy.cam.ac.uk 
> <mailto:jon...@hep.phy.cam.ac.uk>> wrote:
> Hi,
> 
> 10.13 only would be quite a harsh requirement, so I think limiting iTerm2 to 
> only that would not be good. 
> 
> Do you know why exactly they are doing this ? Is it the Metal 2 requirement, 
> or Xcode or  something else ? Sometimes within MacPorts we can support OSes 
> beyond what upstream expects, as we have things like fallback compilers etc., 
> whilst upstream assumes you would only use Xcode supplied ones. So it really 
> depends on what the limitation actually is.
> 
> Chris 
> 
> On 28 Jul 2018, at 9:10 pm, Mark Anderson <e...@emer.net 
> <mailto:e...@emer.net>> wrote:
> 
>> The upcoming 3.2 version of iTerm2 will require 10.13 or higher to build. 
>> The upside is Metal 2 rendering is being working on. I'm wondering if we 
>> want to keep older versions based on older macOSes or just say, hey, 
>> upstream only supports 10.XX at the latest and so that's what we support.
>> 
>> —Mark
>> _______________________
>> Mark E. Anderson <e...@emer.net <mailto:e...@emer.net>>

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