[MacPorts] #38778: gcc46 update to support libgcc*dylib move to libstdcxx in gcc48

[MacPorts]

#38778: gcc46 update to support libgcc*dylib move to libstdcxx in gcc48
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  Reporter:  howarth@…  |      Owner:  mww@…
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  haspatch
      Port:  gcc46      |
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Comment (by jeremyhu@…):

 Replying to [comment:3 howarth@…]:
 > Shouldn't all gcc4x packages which have the same soversion for libstdc++
 be using the libstdcxx subport?

 Yes, they do.  That was the whole point of the process.

 > testcase that exposes use of two unwinders in current packaging

 If libstdc++.dylib actually is using multiple unwinders (I still am not
 convinced of that), please open a ticket to deal with that issue in
 libstdc++.dylib.  Discussion of that issue is quite intricate and should
 not be spread out over ~5 different trouble tickets as you are doing.

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Ticket URL: <https://trac.macports.org/ticket/38778#comment:4>
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