[MacPorts] #55124: ffmpeg @3.4_0 does not build on 10.5.8 PPC

[MacPorts]

#55124: ffmpeg @3.4_0 does not build on 10.5.8 PPC
-------------------------+-----------------------------
  Reporter:  udbraumann  |      Owner:  dbevans
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  leopard powerpc
      Port:  ffmpeg      |
-------------------------+-----------------------------

Comment (by kencu):

 Looks like the default compiler gcc42 on 10.5.8 PPC doesn't have the chops
 to build this any more. It built through with gcc6 without any trouble,
 though.
 {{{
 $ port -v installed ffmpeg
 The following ports are currently installed:
   ffmpeg @3.4_0+gpl2 (active) platform='darwin 9' archs='ppc'
 date='2017-10-19T17:56:50-0700'
 }}}

 you can do this manually for now `sudo port -v upgrade ffmpeg
 configure.compiler=macports-gcc-6` or similarly to install it.

 We'll need to come up with a suitable compiler blacklist to make this
 work, blacklisting at least gcc42 on PPC, and as the only compiler I'd
 suggest is gcc6, blacklist all gcc compilers < gcc6.

--
Ticket URL: <https://trac.macports.org/ticket/55124#comment:2>
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