[GHC] #12859: ghc/packages/Cabal is not a valid repository name

[GHC]

#12859: ghc/packages/Cabal is not a valid repository name
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           Reporter:  philderbeast    |             Owner:  hvr
               Type:  bug             |            Status:  new
           Priority:  normal          |         Milestone:
          Component:  Trac & Git      |           Version:  8.0.1
           Keywords:                  |  Operating System:  Windows
       Architecture:  x86_64 (amd64)  |   Type of failure:  None/Unknown
          Test Case:                  |        Blocked By:
           Blocking:                  |   Related Tickets:
Differential Rev(s):                  |         Wiki Page:
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 On 2016-11-05 I was able to follow the newcomer build instructions
 [https://ghc.haskell.org/trac/ghc/wiki/Newcomers] for and built ghc on
 Windows with MSYS2 x64. I am now repeating those steps and see that doing
 a clean recursive clone of ghc fails for the Cabal submodule and many
 others ...

 {{{
 $ git clone --recursive git://github.com/ghc/ghc

 Cloning into '/d/Dev/Src/ghc/libraries/Cabal'...
 fatal: remote error:
   ghc/packages/Cabal is not a valid repository name
 }}}

 I tried the exact same recursive clone on OSX and it completed without
 error.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12859>
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