fail is a dummy dep

ghc-hslua.spec

@@ -21,7 +21,6 @@ BuildRequires:  ghc-rpm-macros
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-containers-devel
 BuildRequires:  ghc-exceptions-devel
-BuildRequires:  ghc-fail-devel
 BuildRequires:  ghc-mtl-devel
 BuildRequires:  ghc-text-devel
 BuildRequires:  pkgconfig(luajit)
@@ -60,6 +59,7 @@ This package provides the Haskell %{pkg_name} library development files.
 
 %prep
 %setup -q -n %{pkgver}
+cabal-tweak-drop-dep fail
 cabal-tweak-flag system-lua True
 cabal-tweak-flag use-pkgconfig True
 rm -r lua-5.3.4