[MacPorts] #38218: default configure.optflags should be -Os rather than -O2

[MacPorts]

#38218: default configure.optflags should be -Os rather than -O2
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  Reporter:  jeremyhu@…   |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:  MacPorts Future
 Component:  base         |    Version:  2.1.3
Resolution:               |   Keywords:
      Port:               |
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Comment (by ryandesign@…):

 Replying to [comment:7 ryandesign@…]:
 > `platform powerpc` is syntactic sugar exactly equivalent to `if
 {${os.platform} == "powerpc"}`.

 Correction: `platform powerpc` is syntactic sugar exactly equivalent to
 `if {${os.arch} == "powerpc"}`.

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Ticket URL: <https://trac.macports.org/ticket/38218#comment:10>
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