[MacPorts] #61839: cmake: Configure failure with MacOS 11.1 and Xcode 12.3

[MacPorts]

#61839: cmake: Configure failure with MacOS 11.1 and Xcode 12.3
---------------------+-----------------------
  Reporter:  mf2k    |      Owner:  michaelld
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.99
Resolution:          |   Keywords:
      Port:  cmake   |
---------------------+-----------------------

Comment (by mf2k):

 Hi Michael,

 I certainly did not rm -rf that directory and I don't believe we should
 have to. I think the issue is the renaming of the SDK to be 11.1 now.

 {{{
 $ ls -al
 total 0
 drwxr-xr-x  7 root  wheel  224 Dec 14 13:41 .
 drwxr-xr-x  5 root  wheel  160 Dec 14 10:55 ..
 lrwxr-xr-x  1 root  wheel   14 Dec 14 13:41 MacOSX.sdk -> MacOSX11.1.sdk
 drwxr-xr-x  7 root  wheel  224 Nov 12  2019 MacOSX10.14.sdk
 drwxr-xr-x  8 root  wheel  256 Dec 14 13:41 MacOSX10.15.sdk
 drwxr-xr-x  4 root  wheel  128 Dec 14 13:41 MacOSX11.0.sdk
 drwxr-xr-x  7 root  wheel  224 Nov 30 05:33 MacOSX11.1.sdk
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61839#comment:3>
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