[GHC] #15950: Hadrian build fails on Windows

[GHC]

#15950: Hadrian build fails on Windows
-------------------------------------+-------------------------------------
           Reporter:  bgamari        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  high           |         Milestone:  8.8.1
          Component:  Build System   |           Version:  8.6.2
  (Hadrian)                          |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 As of
 {{{
 $ hadrian/build.cabal.sh -j5 --flavour=Quick
 ...
 $ hadrian/build.cabal.sh -j5 --flavour=Quick
 | ContextData oracle: resolving data for 'iserv' (Stage1, v)...
 | Configure package 'iserv'
 Configuring iserv-8.7.1...
 creating
 C:\msys64\home\ben\ghc\builds\0\project-0\_build\stage1\utils\iserv\build
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc.exe"
 "--numeric-version"
 ]0;1s
 (99%)C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc.exe
 is version
 8.7.20181126
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc-pkg.exe"
 "--version"
 C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc-pkg.exe is
 version 8.7.20181126
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc.exe"
 "--supported-languages"
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc.exe" "--
 info"
 Reading installed packages...
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc-pkg.exe"
 "dump" "--global" "-v0" "--global-package-
 db=C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage1/lib/package.conf.d"
 "C:/msys64/home/ben/ghc/builds/0/project-0/_build/stage0/bin/ghc.exe"
 "--print-libdir" "-ghcversion-
 file=C:/msys64/home/ben/ghc/builds/0/project-0/_build/generated/ghcversion.h"
 CallStack (from HasCallStack):
   die', called at .\Distribution\Simple\Configure.hs:969:20 in
 Cabal-2.5.0.0-inplace:Distribution.Simple.Configure
   configureFinalizedPackage, called at
 .\Distribution\Simple\Configure.hs:467:12 in
 Cabal-2.5.0.0-inplace:Distribution.Simple.Configure
   configure, called at .\Distribution\Simple.hs:596:20 in
 Cabal-2.5.0.0-inplace:Distribution.Simple
   confHook, called at .\Distribution\Simple\UserHooks.hs:67:5 in
 Cabal-2.5.0.0-inplace:Distribution.Simple.UserHooks
   configureAction, called at .\Distribution\Simple.hs:178:19 in
 Cabal-2.5.0.0-inplace:Distribution.Simple
   defaultMainHelper, called at .\Distribution\Simple.hs:148:3 in
 Cabal-2.5.0.0-inplace:Distribution.Simple
   defaultMainWithHooksNoReadArgs, called at
 src\Hadrian\Haskell\Cabal\Parse.hs:145:14 in
 main:Hadrian.Haskell.Cabal.Parse
 hadrian.exe: Encountered missing dependencies:
 libiserv ==8.7.*

 }}}
 (Ignore garbage characters due to Window's broken ANSI console support)

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15950>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler