[MacPorts] #68429: qemu @8.0, 5: compiler blacklist needs to be updated, for latest release

[MacPorts]

#68429: qemu @8.0,5: compiler blacklist needs to be updated, for latest release
---------------------+----------------------
 Reporter:  mascguy  |      Owner:  raimue
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.8.1
 Keywords:           |       Port:  qemu
---------------------+----------------------
 The portfile currently blacklists Xcode Clang < 1000, but upstream's
 configure script now appears to require 1200+:

 {{{
 ERROR: You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)
 }}}

 It's possible that this is stricter than necessary, so it might be worth
 testing with Xcode Clang 10 or 11 - after patching the configure script -
 to see whether this is absolutely necessary.

 Regardless, we'll need to do something, as this is causing failures for
 10.15 and earlier.

 On a related note, `spice-server` fails to build for 10.14 and earlier,
 and that will also need to be fixed. (Since it will block builds for
 `qemu`.) Presently waiting for fresh buildbot logs, as history for the
 former has aged out.

-- 
Ticket URL: <https://trac.macports.org/ticket/68429>
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