Description: Disable fixtures test-suite
 It requires tree-diff which is not packaged yet.
Author: Ilias Tsitsimpis <iliastsi@debian.org>

Index: b/haddock-library.cabal
===================================================================
--- a/haddock-library.cabal
+++ b/haddock-library.cabal
@@ -92,6 +92,7 @@ test-suite spec
     hspec-discover:hspec-discover ^>= 2.4.4
 
 test-suite fixtures
+  buildable: False
   type:             exitcode-stdio-1.0
   default-language: Haskell2010
   main-is:          Fixtures.hs
