[MacPorts] #73607: mas: Restrict to supported OS versions

[MacPorts]

#73607: mas: Restrict to supported OS versions
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  kimuraw
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.12.3
Resolution:              |   Keywords:
      Port:  mas         |
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Comment (by rgoldberg):

 I'm the developer of mas.

 mas can be built without Xcode 26 or later by installing a new enough
 Swift toolchain. That can be done via
 [Swiftly](https://github.com/swiftlang/swiftly/) or via a manual toolchain
 installation.

 For macOS versions that do not support Xcode versions with a new enough
 Swift, the Homebrew Core mas formula depends on the Homebrew Core swift
 formula to install the latest Swift toolchain.

 I don't know if MacPorts has a swift or a swiftly port upon which the mas
 port can depend for older macOS versions.

-- 
Ticket URL: <https://trac.macports.org/ticket/73607#comment:1>
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