[MacPorts] #53438: Audacity can't find ffmpeg

[MacPorts]

#53438: Audacity can't find ffmpeg
--------------------------+----------------------
  Reporter:  rpspringuel  |      Owner:  RJVB
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  audacity     |
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Comment (by RJVB):

 That build error has nothing to do with FFMpeg:

 {{{
 :info:build ld: warning: ignoring file ../lib-src/lv2/liblv2.a, file was
 built for archive which is not the architecture being linked (x86_64):
 ../lib-src/lv2/liblv2.a
 }}}

 Annoyingly the liblv2 build hides its details so I cannot infer what goes
 wrong there, so this may take some time to figure out :-/

 Googling the "file was built for archive" error I find this most recent
 hit:
 https://github.com/MoarVM/MoarVM/issues/334

 In that case the error was caused by the use of the wrong `ar` utility
 (GNU's instead of Apple's). Confirmed in another hit
 (https://github.com/tpoechtrager/osxcross/issues/11).

 As far as I can see your build uses AppleClang. Can you check where in
 your path you have the `ar` program installed (tcsh has the `where ar`
 command for that, bash/sh surely have something similar), and what
 versions they are?

--
Ticket URL: <https://trac.macports.org/ticket/53438#comment:6>
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