[tor-bugs] #12406 [Tor bundles/installation]: use MinGW-w64 v3.1.0 for TBB 4.x

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#12406: use MinGW-w64 v3.1.0 for TBB 4.x
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     Reporter:  mcs                       |      Owner:  erinn
         Type:  defect                    |     Status:  new
     Priority:  normal                    |  Milestone:
    Component:  Tor bundles/installation  |    Version:
   Resolution:                            |   Keywords:  MikePerry201406R
Actual Points:                            |  Parent ID:
       Points:                            |
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Comment (by mcs):

 The SVN developers did not create a signed tag for v3.0.1 so I just used
 the corresponding commit hash.

 The new branch is bug12406-02 within /user/brade/tor-browser-bundle.git,
 i.e.,
 https://gitweb.torproject.org/user/brade/tor-browser-
 bundle.git/shortlog/refs/heads/bug12406-02

 As before, the most recent two commits are the ones to look at.

 Switching to git for MinGW-w64 was a little tricky because we build into a
 directory named mingw-w64 which conflicts with the "natural" directory
 that git would clone into.  The solution we adopted is to clone into
 mingw-w64-git and keep everything else the same.  To do that we had to
 tweak update_git() within fetch-inputs.sh to clone into the configured
 dir.

 Please review.  One question:  is it sufficient to just check_git_hash()
 for MinGW-w64? (see our changes inside verify-tags.sh)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12406#comment:5>
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