[cmake-developers] -DCMAKE_OSX_DEPLOYMENT_TARGET:STRING="" -DCMAKE_OSX_SYSROOT:STRING=/ broken in 3.7.0-rc2

[Gregor Jasny]

Hello Howarth,

I'm sorry that I broke your use case with that patch. The problem I have
with maintaining the Xcode / Darwin code is that it is full of backward
compatibility and unknown, undocumented use cases. That makes it
sometimes hard to foresee consequences.

On 30/10/2016 19:04, Jack Howarth wrote:
> Gregor,
>         This is also a severe regression because if forces the cmake
> users to build against the 10.12 SDK on 10.11 which is not well tested
> for backward compatibility on 10.11. Your change makes it impossible
> to build against the SDK in / installed by the Xcode Command Line
> Tools package.

What do you mean with SDK installed into "/"? I was under the impression
that the Command Line Tools package is installed automatically by Xcode
after first start. I thought it provides the /usr/bin/clang etc.

Thanks,
Gregor