[GHC] #8737: T5975a fails when using official Windows Python distribution

[GHC]

#8737: T5975a fails when using official Windows Python distribution
--------------------------+------------------------------------------------
       Reporter:  ezyang  |             Owner:
           Type:  bug     |            Status:  new
       Priority:  low     |         Milestone:
      Component:  Test    |           Version:  7.8.1-rc1
  Suite                   |  Operating System:  Windows
       Keywords:          |   Type of failure:  Incorrect result at runtime
   Architecture:          |         Test Case:  T5975a
  Unknown/Multiple        |          Blocking:
     Difficulty:          |
  Unknown                 |
     Blocked By:          |
Related Tickets:          |
--------------------------+------------------------------------------------
 Using the official MSYS2 instructions:

 {{{
 =====> T5975a(ghci) 988 of 3859 [0, 0, 0]
 cd ./ghci/scripts && touch föøbàr1.hs
 cd ./ghci/scripts && HC='C:/msys64/home/Administrator/ghc/inplace/bin/ghc-
 stage2.exe' HC_OPTS='-dcore-lint -dcmm-lint -dno-debug-output -no-user-
 package-db -rtsopts -fno-ghci-history '
 'C:/msys64/home/Administrator/ghc/inplace/bin/ghc-stage2.exe'
 --interactive -v0 -ignore-dot-ghci -dcore-lint -dcmm-lint -dno-debug-
 output -no-user-package-db -rtsopts -fno-ghci-history     <T5975a.script
 >T5975a.run.stdout 2>T5975a.run.stderr
 Actual stderr output differs from expected:
 --- /dev/null   2014-02-05 03:11:58.000000000 +0000
 +++ ./ghci/scripts/T5975a.run.stderr    2014-02-05 03:11:58.103200000
 +0000
 @@ -0,0 +1,2 @@
 +
 +<no location info>: can't find file: föøbàr1.hs
 *** unexpected failure for T5975a(ghci)
 }}}

 When we disable the cleanup hook and look at the directory listing, we see
 that Python has created the following file: "föøbà r1.hs". I think this
 is some sort of encoding problem, since we see similar behavior when
 running a simple Python script:

 {{{
 #coding=utf-8
 open('föøbàr1.hs', 'w').write("")
 }}}

 Maybe this bug shows up in MSYS as well, but I haven't checked.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8737>
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