[MacPorts] #73978: port patch with os.major=X should not care about a "platform mismatch"

[MacPorts]

#73978: port patch with os.major=X should not care about a "platform mismatch"
-------------------------+--------------------
  Reporter:  reneeotten  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.12.5
Resolution:              |   Keywords:
      Port:              |
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Comment (by ryandesign):

 Replying to [ticket:73978 reneeotten]:
 > One used to be able to specify `os.major=X` together with `port patch`
 to simulate building on an older OS in order to check whether OS-version-
 specific patches still apply.
 > Currently that no longer works; instead it shows:
 > {{{
 > DEBUG: platform mismatch ... upgrading!
 > }}}
 >
 > and wants to rebuild all dependents for the older OS first.

 Does using the `-n` switch help? I seem to recall using that in such
 situations.

 > [similarly, but I can open an new ticket for this: there should be no
 obvious reason why `port extract` needs to wait for a registry lock]

 Doesn't sound related so yes I would recommend a different ticket for
 this.

 `port extract` might have dependencies that need to be upgraded first. But
 if it doesn't, then I agree it should be able to do it right away.

-- 
Ticket URL: <https://trac.macports.org/ticket/73978#comment:2>
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