[GHC] #9924: libffi configure script does not detect MSYS2 Windows 10 x86_64

[GHC]

#9924: libffi configure script does not detect MSYS2 Windows 10 x86_64
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              Reporter:  luite       |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.10.1-rc1
            Resolution:              |         Keywords:
      Operating System:  Windows     |     Architecture:  Unknown/Multiple
       Type of failure:              |       Difficulty:  Unknown
  None/Unknown                       |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by Herbert Valerio Riedel <hvr@…>):

 In [changeset:"9ae78b0ac20199982b994122889a04c6124e01b2/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="9ae78b0ac20199982b994122889a04c6124e01b2"
 Copy GHC's config.guess/sub over libffi's versions

 This should address #9924 as GHC's config.guess/sub versions need to be
 up to date anyway.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9924#comment:4>
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