The macOS SDK in Xcode 11.3 is MacOSX11.1.sdk.
> On Nov 18, 2020, at 18:12, Ryan Schmidt <[email protected]> wrote:
>
> Based on the fact that Apple has released a beta of macOS Big Sur 11.1
> already, we can now see that Big Sur should be referred to as version 11, not
> 11.0 (and it would be reasonable to expect that next year's macOS will be
> version 12).
>
> If you are fixing any ports that had been coded to assume the macOS version
> was always 10.x, be sure that you're not fixing it to simply accept versions
> 10.x or 11.x. Instead, remove any assumption about the version number so that
> you won't have to revisit the problem again every year.
>
> When Josh released MacPorts 2.6.4 recently, he used the number 11.0 on the
> Big Sur installer package. For the next version, we should use the version
> number 11 to denote Big Sur.
>
> I did the same when naming the Big Sur buildbot machines and will change them
> from 11.0 to 11 soon.
>
> Part of our decision to use "11.0" came from the way that Apple named the
> SDK: MacOSX11.0.sdk. We will have to see if they change this to
> MacOSX11.1.sdk in a future version of Xcode and the CLT. If they do, that
> would represent a change from their previous strategy, and it would be a
> problem for MacPorts because the SDK path gets baked into some ports.
> Previously this was ok since the SDK path would stay the same for the life of
> the OS version, but if it now changes during the life of the OS we may find
> ourselves needing to rebuild some ports to update their SDK paths.
>
> We may also need to adjust how MacPorts selects the SDK version and SDK path,
> depending on whether Apple changes the SDK name.
>