[commit: ghc] wip/nfs-locking: Reset GHC_PACKAGE_PATH varialbe (2nd try). (901105e)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/nfs-locking
Link       : http://ghc.haskell.org/trac/ghc/changeset/901105e56574df051615b59db337bb7ec856ef9a/ghc

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commit 901105e56574df051615b59db337bb7ec856ef9a
Author: Andrey Mokhov <andrey.mokhov at gmail.com>
Date:   Sat Jan 9 17:06:20 2016 +0000

    Reset GHC_PACKAGE_PATH varialbe (2nd try).
    
    See #110. [skip ci]


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901105e56574df051615b59db337bb7ec856ef9a
 .appveyor.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.appveyor.yml b/.appveyor.yml
index 9cb8bcb..e382140 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -23,6 +23,8 @@ install:
     - happy --version
 
 build_script:
-    - unset GHC_PACKAGE_PATH
+    - set GHC_PACKAGE_PATH
+    - set GHC_PACKAGE_PATH=
+    - set GHC_PACKAGE_PATH
     - cd C:\msys64\home\ghc\shake-build
     - echo "" | stack --no-terminal exec -- build.bat -j --no-progress