THRIFT-4545: disable haskell on windows builds until language-specific build issue can be resolved
diff --git a/build/appveyor/MSVC-appveyor-install.bat b/build/appveyor/MSVC-appveyor-install.bat
index 95008bd..f9eb0c6 100644
--- a/build/appveyor/MSVC-appveyor-install.bat
+++ b/build/appveyor/MSVC-appveyor-install.bat
@@ -56,5 +56,5 @@
             tornado ^
             twisted                       || EXIT /B
 
-:: Haskell (GHC) and cabal
-cinst -c "%BUILDCACHE%" -y ghc            || EXIT /B
+:: Haskell (GHC) and cabal (disabled: see Jira THRIFT-4545)
+:: cinst -c "%BUILDCACHE%" -y ghc            || EXIT /B