[MacPorts] #65055: Broken symbolic link libgcc_ext.10.5.dylib and libgcc_ext.10.4.dylib

[MacPorts]

#65055: Broken symbolic link libgcc_ext.10.5.dylib and libgcc_ext.10.4.dylib
--------------------------+--------------------
  Reporter:  Serge3leo    |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.2
Resolution:               |   Keywords:
      Port:  gcc9, gcc10  |
--------------------------+--------------------

Comment (by johnrosshunt):

 On my Catalina system, that points to the Xcode SDK:

 Catalina:
 {{{
 $ ls -las /Library/Developer/CommandLineTools/SDKs/
 total 0
 0 drwxr-xr-x  7 root  wheel  224 Mar 14 21:59 .
 0 drwxr-xr-x  5 root  wheel  160 Nov 11  2019 ..
 0 lrwxr-xr-x  1 root  wheel   14 Mar 14 21:58 MacOSX.sdk -> MacOSX11.1.sdk
 0 drwxr-xr-x  7 root  wheel  224 Sep  2  2020 MacOSX10.14.sdk
 0 drwxr-xr-x  8 root  wheel  256 Mar 14 21:59 MacOSX10.15.sdk
 0 drwxr-xr-x  4 root  wheel  128 Dec 14  2020 MacOSX11.0.sdk
 0 drwxr-xr-x  7 root  wheel  224 Mar 14 21:59 MacOSX11.1.sdk
 }}}

 Monterey:
 {{{
 $ ls -las /Library/Developer/CommandLineTools/SDKs/
 total 0
 0 drwxr-xr-x  8 root  wheel  256 Apr 20 12:54 .
 0 drwxr-xr-x  5 root  wheel  160 Apr 20 12:51 ..
 0 lrwxr-xr-x  1 root  wheel   14 Apr 20 12:51 MacOSX.sdk -> MacOSX12.3.sdk
 0 drwxr-xr-x  7 root  wheel  224 Apr 20 12:52 MacOSX11.3.sdk
 0 lrwxr-xr-x  1 root  wheel   14 Apr 20 12:50 MacOSX11.sdk ->
 MacOSX11.3.sdk
 0 drwxr-xr-x  7 root  wheel  224 Apr 20 12:53 MacOSX12.1.sdk
 0 drwxr-xr-x  7 root  wheel  224 Apr 20 12:54 MacOSX12.3.sdk
 0 lrwxr-xr-x  1 root  wheel   14 Apr 20 12:49 MacOSX12.sdk ->
 MacOSX12.3.sdk
 }}}

 If you want to build this against the CLT SDK, it would be correct on
 Monterey, but not on Catalina?

-- 
Ticket URL: <https://trac.macports.org/ticket/65055#comment:9>
MacPorts <https://www.macports.org/>
Ports system for macOS