[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
      Resolution:                |             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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Description changed by philderbeast:

@@ -2,4 +2,3 @@
- [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 ...
+ [https://ghc.haskell.org/trac/ghc/wiki/Newcomers] 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 ...

New description:

 On 2016-11-05 I was able to follow the newcomer build instructions
 [https://ghc.haskell.org/trac/ghc/wiki/Newcomers] 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#comment:1>
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