[MacPorts] #54699: mame: New port

[MacPorts]

#54699: mame: New port
-------------------------+-----------------
  Reporter:  mf2k        |      Owner:
      Type:  submission  |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  mame        |
-------------------------+-----------------

Comment (by kencu):

 Frank, it looks to me like the logic to be sorted through is in this file
 here:
 {{{
 scripts/src/osd/sdl.lua
 }}}
 down around this block:
 {{{
 if BASE_TARGETOS=="unix" then
         if _OPTIONS["targetos"]=="macosx" then
 }}}
 and that logic might need to be reworked a bit to properly interact with
 MacPorts-installed SDL2.

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Ticket URL: <https://trac.macports.org/ticket/54699#comment:3>
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