[tor-bugs] #31860 [Applications/Tor Browser]: Start using LTO for firefox project

[Tor Bug Tracker & Wiki]

#31860: Start using LTO for firefox project
------------------------------------------+----------------------
     Reporter:  gk                        |      Owner:  tbb-team
         Type:  enhancement               |     Status:  new
     Priority:  Medium                    |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  tbb-rbm
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+----------------------
 There are a number of platforms where Mozilla is using LTO in their
 builds. We should switch to that if possible by setting the respective
 `MOZ_LTO` env variable.

 This is the parent ticket.

 We might want to test this thoroughly as there are probably
 reproducibility issues involved (glandium mentioned the other day that
 Mozilla's macOS builds are not reproducible anymore which is not the case
 for us; the best explanation he could come up with was that LTO is causing
 that).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31860>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online