[tor-bugs] #27508 [Applications/Tor Browser]: Starting Tor Browser 8 is broken on some older Linux systems

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#27508: Starting Tor Browser 8 is broken on some older Linux systems
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 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  TorBrowserTeam201809,                |  Actual Points:
  tbb-8.0-issues, tbb-regression                 |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Description changed by gk:

Old description:

> We have reports from Linux Mint 17 and Ubuntu 14 users that Tor Browser
> is not starting anymore, probably due to #25485. The error they get is:
> {{{
> ./firefox.real: relocation error: ./firefox.real: symbol
> _ZTTNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEE, version
> GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time
> reference
> }}}
> There is a workaround posted ()
> {{{
> 1 open file /Browser/firefox
> 2 comment line 10,12( if and fi) to use custom libstdc++
> #if [ $? -ne 0 ]; then
> LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$basedir/TorBrowser/Tor/libstdc++/"
> #fi
> }}}
> So, it seems our `abicheck` hack is not working as expected? I wonder
> what is going on here, though, as I have no issues updating from 7.5.6 to
> 8.0 on an Ubuntu 14.04.

New description:

 We have reports from Linux Mint 17 and Ubuntu 14 users that Tor Browser is
 not starting anymore, probably due to #25485. The error they get is:
 {{{
 ./firefox.real: relocation error: ./firefox.real: symbol
 _ZTTNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEE, version
 GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference
 }}}
 There is a workaround posted
 (https://blog.torproject.org/comment/276770#comment-276770)
 {{{
 1 open file /Browser/firefox
 2 comment line 10,12( if and fi) to use custom libstdc++
 #if [ $? -ne 0 ]; then
 LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$basedir/TorBrowser/Tor/libstdc++/"
 #fi
 }}}
 So, it seems our `abicheck` hack is not working as expected? I wonder what
 is going on here, though, as I have no issues updating from 7.5.6 to 8.0
 on an Ubuntu 14.04.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27508#comment:1>
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