[MacPorts] #62954: snappy: @1.1.9: buildbot failures for macOS 10.8 through 10.14

[MacPorts]

#62954: snappy: @1.1.9: buildbot failures for macOS 10.8 through 10.14
----------------------+------------------------
  Reporter:  mascguy  |      Owner:  reneeotten
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  snappy   |
----------------------+------------------------

Comment (by mascguy):

 Replying to [comment:6 Christopher Nielsen <mascguy@…>]:
 > In [changeset:"d83ca20f249df2ae42cb0408adfdb235d9211821/macports-ports"
 d83ca20f249df2ae42cb0408adfdb235d9211821/macports-ports] (master):
 > {{{
 > #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="d83ca20f249df2ae42cb0408adfdb235d9211821"
 > snappy: blacklist older clang versions
 >
 > See: https://trac.macports.org/ticket/62954
 > }}}

 This should fix the template-related build errors, which covers most macOS
 releases.

 As for the error related to `invalid output constraint '=@ccz' in asm`,
 that might require blacklisting Xcode-provided clangs. But still TBD.

-- 
Ticket URL: <https://trac.macports.org/ticket/62954#comment:7>
MacPorts <https://www.macports.org/>
Ports system for macOS