No Xcode 8 CLT for El Capitan

[Ryan Schmidt]

> On Sep 22, 2016, at 3:44 AM, Jeremy Huddleston Sequoia <jeremyhu at macports.org> wrote:
> 
> 
>> On Sep 21, 2016, at 12:15, Adam Dershowitz <dersh at alum.mit.edu> wrote:
>> 
>> That comment does not make it at all clear what those of us who updated to Xcode 8 (but not beta!) but are still on OS X 10.11 are supposed to do. 
> 
> If you don't need the CLTools, do nothing.
> If you need the CLTools, install the latest version (or likely just stick with the version that you have if you already have them).
> 
>> I have posted a ticket about building cmake that seems to be because it is trying to use 10.12 SDK, but it is not clear how to work around that.
> 
> If a port is using an SDK and you haven't configure it to do so, that's a port bug.
> 
>> Perhaps the answer is to downgrade to Xcode 7, and stay away from 8?  (It is a big download!)
> 
> Why?  Fix the bug in the port.
> 
>> Or, it might be that just the 10.11 command line tools is enough?
> 
> The 10.11 CLTools installs the 10.11 headers to /.  Your issue with cmake is likely that the port is (incorrectly) trying to use the 10.12 SDK and expecting it to match the base system somehow... ?

cmake is a bug...