[tor-bugs] #27443 [Applications/Tor Browser]: Update Firefox RBM config and build for Android

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#27443: Update Firefox RBM config and build for Android
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 Reporter:  sisbell                              |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_revision
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-rbm, tbb-mobile, TBA-a2,         |  Actual Points:
  TorBrowserTeam201811                           |
Parent ID:  #26693                               |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by gk):

 Okay, so it seems not uncommon that the Android NDK does not have a symbol
 at a particular level but the headers are still exposing it. So, right,
 there is no `dl_iterate_phdr` below Android API 21. However, Mozilla coped
 with that and provided fallbacks in case that's needed. See:

 https://hg.mozilla.org/mozilla-central/rev/3b862e2b9e0b
 https://hg.mozilla.org/mozilla-central/rev/bb9548c09c19

 The question we need to answer is why this is an issue in tor-browser-
 build but not when building outside it?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27443#comment:52>
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