[MacPorts] #53562: opencv @3.2.0: fatal error: 'AVFoundation/AVFoundation.h' file not found

[MacPorts]

#53562: opencv @3.2.0: fatal error: 'AVFoundation/AVFoundation.h' file not found
---------------------+-------------------------
  Reporter:  fmw42   |      Owner:  stromnov
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.4.0
Resolution:          |   Keywords:  snowleopard
      Port:  opencv  |
---------------------+-------------------------

Comment (by kencu):

 Here's the current block I add to the Portfile to build opencv 3.4.0 on
 older systems:
 {{{
 # older systems compatability fixes
 if {${os.platform} eq "darwin" && ${os.major} < 11} {
     # all default compilers fail so force a reasonable compiler choice
     PortGroup cxx11 1.1

     # disable AVFoundation which exists on 10.7+
     configure.args-append -DWITH_AVFOUNDATION=OFF

     # tweak thread-local-storage needs on older systems
     #
 https://github.com/google/protobuf/blob/master/src/google/protobuf/stubs/platform_macros.h
     if {[string match *clang* ${configure.cxx}]} {
         configure.cppflags-append  -DGOOGLE_PROTOBUF_NO_THREADLOCAL
     }
 }
 }}}

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Ticket URL: <https://trac.macports.org/ticket/53562#comment:18>
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