macOS 11.1 SDK does not appear to be installed

[Ryan Schmidt]

On Feb 11, 2021, at 18:47, Todd Doucet wrote:

> You can see that there are two SDKs here, including the one that you expect, and the name MacOSX.sdk links to it too:
> 
> % ls -l /Library/Developer/CommandLineTools/SDKs
> 
> lrwxr-xr-x  1 root  wheel   14 Feb  6 16:23 MacOSX.sdk -> MacOSX11.1.sdk
> drwxr-xr-x  8 root  wheel  256 Jul  9  2020 MacOSX10.15.sdk
> drwxr-xr-x  7 root  wheel  224 Nov 30 07:33 MacOSX11.1.sdk

This looks normal to me. As far as I can tell, it is normal for the Xcode 12.4 command line tools installer to give you both the 10.15 SDK and the 11.1 SDK. Apple has changed their mind a few times about whether Xcode and the CLT provide only the latest OS SDK or both the latest OS SDK and the previous OS SDK, but right now they appear to be providing both latest and previous.


> I am not sure which package receipt specifically is important, but I have these:
> 
> % pkgutil --pkgs | grep -i cltool
> com.apple.pkg.CLTools_Executables
> com.apple.pkg.CLTools_SDK_macOS110
> com.apple.pkg.CLTools_SDK_macOS1015
> com.apple.pkg.CLTools_macOS_SDK

The first one is the one that MacPorts checks for (on 10.9 and later; on earlier OS versions it has different names) and the one that we believe Apple's software update checks for. You can verify which version of the CLT you have by running:

pkgutil --pkg-info=com.apple.pkg.CLTools_Executables | grep version


> This machine is about one week old.  One of the very first things I did was type 'git' to the shell, which caused macOS to offer to install the Command Line Tools.  I said yes, and was happily using git and the compilers and other tools for several days.
> 
> Then later, when I decided to install MacPorts, I read that Xcode is required so I installed that.  When I ran Xcode once, Xcode itself offered to install Command Line Tools (or maybe it was during the installation process--not sure).  Anyway, I said yes again and still had command line tools.  And Xcode version 12.4 (12D4e) too.

I do not believe that Xcode offered you to install the CLT; I have never known Xcode to do that. Xcode does ask you about installing additional components when it is first opened, and if you do not allow it, Xcode quits, so you probably allowed it. But "additional components" and "command line tools" are unrelated things.


> My conclusion is that I probably have what I am supposed to have.  If you think otherwise, please let me know.

You stated you are running macOS 11.1, and you appear to have the 11.1 SDK. Therefore I cannot explain why you are seeing the warning.


> I assume that MacPorts in the new version will also recognize that I have what I need and the spurious warning would go away.

I assume that as well. If you'd like to confirm it, you could install the latest unreleased MacPorts from source.


On Feb 11, 2021, at 19:07, Todd Doucet wrote:

> It is a little odd that one of the package receipts is not named
> 
>     com.apple.pkg.CLTools_SDK_macOS111
> 
> but instead is named
> 
>   com.apple.pkg.CLTools_SDK_macOS110

I do not have enough experience with macOS Big Sur to be able to say whether that is normal or unusual.