[MacPorts] #61849: gobject-introspection: Configure failure on Big Sur 11.1 and Xcode 12.3

[MacPorts]

#61849: gobject-introspection: Configure failure on Big Sur 11.1 and Xcode 12.3
------------------------------------+----------------------
  Reporter:  mf2k                   |      Owner:  dbevans
      Type:  defect                 |     Status:  assigned
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:
Resolution:                         |   Keywords:
      Port:  gobject-introspection  |
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Comment (by mf2k):

 Hmm. It does appear to lack some files present in the 11.1 SDK directory.
 Is there a way to fix that? I still think this needs to be fixed in
 Macports. It should be looking for the 11.1 SDK CLT.

 {{{
 $ ls -al /Library/Developer/CommandLineTools/SDKs/MacOSX11.1.sdk/usr/bin
 total 104
 drwxr-xr-x  11 root  wheel    352 Nov 30 05:33 .
 drwxr-xr-x   7 root  wheel    224 Nov 30 05:33 ..
 -r-xr-xr-x   1 root  wheel   2527 Nov 30 01:56 cups-config
 -rwxr-xr-x   1 root  wheel   5441 Nov 30 01:56 curl-config
 -rwxr-xr-x   1 root  wheel   3253 Nov 30 01:56 krb5-config
 -rwxr-xr-x   1 root  wheel   4977 Nov 30 01:56 ncurses5.4-config
 -rwxr-xr-x   1 root  wheel  24999 Nov 30 01:56 net-snmp-config
 -rwxr-xr-x   1 root  wheel   1622 Nov 30 01:56 pcap-config
 -rwxr-xr-x   1 root  wheel   3974 Nov 30 01:56 php-config
 -rwxr-xr-x   1 root  wheel   1866 Nov 30 01:56 xml2-config
 -rwxr-xr-x   1 root  wheel   2546 Nov 30 01:56 xslt-config

 $ ls -al /Library/Developer/CommandLineTools/SDKs/MacOSX11.0.sdk/usr/bin
 ls: /Library/Developer/CommandLineTools/SDKs/MacOSX11.0.sdk/usr/bin: No
 such file or directory
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61849#comment:3>
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