[MacPorts] #42048: apple-gcc42: simplify port

[MacPorts]

#42048: apple-gcc42: simplify port
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 Reporter:  ryandesign@…  |      Owner:  jeremyhu@…
     Type:  enhancement   |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.2.1
 Keywords:  haspatch      |       Port:  apple-gcc42
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 This patch simplifies the apple-gcc42 port a bit. It still builds ok for
 me.

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Ticket URL: <https://trac.macports.org/ticket/42048>
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