+BuildRequires: ghc-base < 4.8
+BuildRequires: ghc-extensible-exceptions >= 0.1
+BuildRequires: ghc-extensible-exceptions < 0.2
+BuildRequires: ghc-monads-tf >= 0.1
+BuildRequires: ghc-monads-tf < 0.2
+BuildRequires: ghc-transformers >= 0.2
+BuildRequires: ghc-transformers < 0.4
+%if %{with prof}
+BuildRequires: ghc-prof >= 6.12.3
+BuildRequires: ghc-base-prof < 4.8
+BuildRequires: ghc-extensible-exceptions-prof >= 0.1
+BuildRequires: ghc-extensible-exceptions-prof < 0.2
+BuildRequires: ghc-monads-tf-prof >= 0.1
+BuildRequires: ghc-monads-tf-prof < 0.2
+BuildRequires: ghc-transformers-prof >= 0.2
+BuildRequires: ghc-transformers-prof < 0.4
+%endif