Reset GHC_PACKAGE_PATH varialbe (3rd try).

See #110. [skip ci]

Reset GHC_PACKAGE_PATH varialbe (3rd try).
See #110. [skip ci]
de13770f · Andrey Mokhov · 9580d018 · de13770f · de13770f
Commit de13770f authored Jan 09, 2016 by Andrey Mokhov
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -23,8 +23,5 @@ install:
    - happy --version

 build_script:
-    - 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
--- a/build.bat
+++ b/build.bat
@@ -16,4 +16,7 @@
               ".."        ^
               %*

+@rem Unset GHC_PACKAGE_PATH variable, as otherwise ghc-cabal complains
+@if defined GHC_PACKAGE_PATH ( set GHC_PACKAGE_PATH )
+
 @ghc %ghcArgs% && .shake\build %shakeArgs%