Some package tests depend on 'old-time'.

Cabal/Cabal.cabal

@@ -319,9 +319,10 @@ test-suite package-tests
     filepath,
     extensible-exceptions,
     bytestring,
-    regex-posix
+    regex-posix,
+    old-time
   if !os(windows)
     build-depends: unix
   ghc-options: -Wall
   default-extensions: CPP
-  default-language: Haskell98
\ No newline at end of file
+  default-language: Haskell98