[MacPorts] #56326: rev-upgrade considers gcc as broken due to libstdc++

[MacPorts]

#56326: rev-upgrade considers gcc as broken due to libstdc++
---------------------+--------------------
  Reporter:  raimue  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.4.99
Resolution:          |   Keywords:
      Port:          |
---------------------+--------------------

Comment (by raimue):

 In [changeset:"8525b9c18d67db7e100f3a71161a185510163b38/macports-base"
 8525b9c18d67db7e100f3a71161a185510163b38/macports-base] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-base"
 revision="8525b9c18d67db7e100f3a71161a185510163b38"
 rev-upgrade: Always check for wrong cxx_stdlib

 rev-upgrade would only check for cxx_stdlib when at least one broken
 file was found. Do not return early, but always run the cxx_stdlib
 check.

 See: https://trac.macports.org/ticket/56326
 }}}

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Ticket URL: <https://trac.macports.org/ticket/56326#comment:3>
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