[MacPorts] #69173: port fails to upgrade itself (was: port fails to upgrade to 2.9.0)

[MacPorts]

#69173: port fails to upgrade itself
-------------------------+------------------------
  Reporter:  mouse07410  |      Owner:  mouse07410
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.9.0
Resolution:              |   Keywords:
      Port:              |
-------------------------+------------------------
Changes (by mouse07410):

 * status:  new => assigned
 * owner:  (none) => mouse07410


Comment:

 Problem discovered: misaligned
 {{{/Library/Developer/CommandLineTools/SDKs}}} and
 {{{/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/}}}.

 Current Xcode.app is 15.2. Remedied this problem by removing whatever was
 in {{{/Library/Developer/CommandLineTools/SDKs}}} and installing CLT-15.1
 (since there's no CLT-15.2, only 15.1 and 15.3-beta).

 Recommendation to other users: since Macports tends to be leery of using
 {{{/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/}}},
 ensure the latest stable CLT is installed - even though it sometimes
 interferes with Haskell toolchain (less so recently).

-- 
Ticket URL: <https://trac.macports.org/ticket/69173#comment:10>
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