[MacPorts] #68731: pinentry-mac does not build with Xcode 15

[MacPorts]

#68731: pinentry-mac does not build with Xcode 15
---------------------------+--------------------
  Reporter:  szhorvat      |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  pinentry-mac  |
---------------------------+--------------------

Comment (by FlyingSamson):

 According to the [https://developer.apple.com/support/xcode/ "Minimum
 requirements and supported SDKs" table on this side] starting with XCode15
 only SDK 14 is supported.

 Since the upstream project of pinentry-map has been archived a long time
 ago, I was wondering if this should still be preferred over `pinentry` by
 the `gnupg2` port, which seems to be the only port depending on `pinentry-
 map`. If not, I would suggest changing the logic in `gnupg2`'s portfile
 (sorry could not yet figure out how to link code in GitHub in the
 WikiFormatting yet)

 {{{
 platform darwin {
     if {![variant_isset pinentry] && ![variant_isset pinentry_mac]} {
         # Automatically switch between pinentry and pinentry-mac, with
 pinentry-mac being
         # preferred.
         # 10.7 and below are not supported by pinentry-mac, though, and
 will default to
         # pinentry. Just like pure darwin without OS X will.
         if {${os.subplatform} ne "macosx" ||
             ${xcodeversion} eq "none" ||
             [vercmp ${xcodeversion} {5.0}] < 0 ||
             ${os.major} < 12 || (![catch {registry_active pinentry}] &&
                                  [catch {registry_active pinentry-mac}])}
 {
             default_variants-append +pinentry
         } else {
             default_variants-append +pinentry_mac
         }
     }

     if {${os.major} < 9} {
         patchfiles-append   patch-common_sysutils.c-fix-unsetenv-usage-
 on-10.4.diff
     }
 }
 }}}

 to prefer `pinenty` for macOS < 10.7 and "pure darwin" (current state) AND
 if Xcode version >= 15.

 Would that be sensible?

-- 
Ticket URL: <https://trac.macports.org/ticket/68731#comment:2>
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