[tbb-bugs] #29143 [Applications/Tor Browser]: Building obfs4 in tor-browser-build nightlies is broken due to uTLS support

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#29143: Building obfs4 in tor-browser-build nightlies is broken due to uTLS support
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 Reporter:  gk                             |          Owner:  tbb-team
     Type:  defect                         |         Status:  new
 Priority:  Medium                         |      Milestone:
Component:  Applications/Tor Browser       |        Version:
 Severity:  Normal                         |     Resolution:
 Keywords:  tbb-rbm, TorBrowserTeam201901  |  Actual Points:
Parent ID:                                 |         Points:
 Reviewer:                                 |        Sponsor:
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Comment (by boklm):

 In branch `bug_29143_v3` I use `var/go_lib_deps` instead of some tar
 commands in `var/build_go_lib_pre` (after being reminded about it by dcf's
 patch):
 https://gitweb.torproject.org/user/boklm/tor-browser-
 build.git/commit/?h=bug_29143_v3&id=ef3e30c73afef06081f11778a29bbfb6a101644d

 This patch is fixing the build for me, however I did not check yet that it
 is running correctly.

 I also see dcf's patch is adding `golang.org/x/crypto/chacha20poly1305`
 and `golang.org/x/crypto/cryptobyte` to `go_lib_install` in
 `projects/goxcrypto/config`.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29143#comment:6>
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