[MacPorts] #67099: openssl3 @3.1.0 fails to build on 10.10 through 10.13

[MacPorts]

#67099: openssl3 @3.1.0 fails to build on 10.10 through 10.13
-------------------------+------------------------
  Reporter:  dyne2meter  |      Owner:  neverpanic
      Type:  defect      |     Status:  accepted
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.8.1
Resolution:              |   Keywords:
      Port:  openssl3    |
-------------------------+------------------------

Comment (by ryandesign):

 Replying to [comment:10 LLatULiege]:
 > Note that the main.log generated in my configuration includes
 `:debug:configure MACPORTS_LEGACY_SUPPORT_DISABLED='1'` at line !#105,
 while I chose "openssl3 +legacy" for my install.

 [https://github.com/macports/macports-legacy-support MacPorts legacy
 support] is a compatibility library created by MacPorts developers to help
 software build on older macOS versions. Ports that need it can include it
 an indicate on which macOS versions it is needed. openssl3 includes it and
 indicates that it is needed on Darwin 8 (Mac OS X 10.4) only.

 It has nothing to do with the openssl3 port's +legacy variant which,
 according to its description, is used to "enable legacy providers by
 default".

-- 
Ticket URL: <https://trac.macports.org/ticket/67099#comment:12>
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