[MacPorts] #64978: boost176 fails on 10.6.8 Rosetta: makecontext/swapcontext do not work

[MacPorts]

#64978: boost176 fails on 10.6.8 Rosetta: makecontext/swapcontext do not work
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  Reporter:  barracuda156  |      Owner:  michaelld
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, snowleopard, rosetta
      Port:  boost176      |
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Comment (by barracuda156):

 Replying to [comment:5 evanmiller]:
 > One of my fantasy projects is to get this Boost assembler code to work
 properly on PPC. It's possible that the correct logic is to disable
 context/coroutine on PowerPC rather than on 10.4/10.5. Maybe for now you
 want something like:
 >
 > {{{
 > if {${os.platform} eq "darwin" && (${os.major} < 10 || ${build.arch} eq
 "ppc")} {
 > }}}

 Thank you. BTW what does not work with its assembler on PPC? Boost does
 install on PPC and seems to work. Though this might be a case of its
 failure: https://github.com/PurpleI2P/i2pd/issues/1726

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Ticket URL: <https://trac.macports.org/ticket/64978#comment:6>
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