[tor-bugs] #34359 [Applications/Tor Browser]: Adapt abicheck.cc to deal with newer GCC version

[Tor Bug Tracker & Wiki]

#34359: Adapt abicheck.cc to deal with newer GCC version
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     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  ff78-esr, tbb-rbm
Actual Points:                            |  Parent ID:  #34228
       Points:                            |   Reviewer:
      Sponsor:                            |
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 We need to adapt our `abicheck.cc` to work as it is supposed to with GCC
 9.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/34359>
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