[tor-bugs] #20426 [Applications/Tor Browser]: Getting rbm-based Tor Browser builds reproductible for all platforms

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#20426: Getting rbm-based Tor Browser builds reproductible for all platforms
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 Reporter:  boklm                     |          Owner:  tbb-team
     Type:  task                      |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-gitian                |  Actual Points:
Parent ID:  #17379                    |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by boklm):

 To check the status of reproducibility, I did a build using commit
 `bfc288d54a28f00e088ba9ce08bd718156d8ff2f` on two machines, and legind did
 one too.

 The OSX bundles matched in all 3 builds. The Windows bundles didn't match
 because of a small diff in tor.exe (similar to the one above). The linux32
 bundles matched in all 3 builds, but the linux64 ones only matched in 2 of
 the builds, with a diff in libxul.so. I did not yet investigate the reason
 for the diff in one of the linux64 builds.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20426#comment:3>
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