[MacPorts] #67038: libvpx @1.13.0: requires c++11

[MacPorts]

#67038: libvpx @1.13.0: requires c++11
---------------------+----------------------
  Reporter:  kencu   |      Owner:  mascguy
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  libvpx  |
---------------------+----------------------

Comment (by kencu):

 The existing Portfile blacklisting is for assembly issues and some other
 problems that could have been c++11 related:
 {{{
 # Uses newer assembly features on Intel.
 # Also blacklist clang 8, due to issues like:
 #   error: use of undeclared identifier 'abs'
 compiler.blacklist-append  {*gcc-[3-4].*} {clang < 900} {macports-
 clang-3.*}
 }}}
 but as this complements but doesn't clash with the
 {{{compiler.cxx_standard 2011}}} settings, it's best to just leave that in
 the Portfile.

-- 
Ticket URL: <https://trac.macports.org/ticket/67038#comment:4>
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