osc copypac from project:devel:languages:haskell:ghc-8.10.x package:ghc-free revision:24, using keep-link

OBS-URL: https://build.opensuse.org/package/show/devel:languages:haskell/ghc-free?expand=0&rev=67

ghc-free.spec

@@ -24,6 +24,7 @@ Summary:        Monads for free
 License:        BSD-3-Clause
 URL:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/1.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-comonad-devel
 BuildRequires:  ghc-containers-devel
@@ -72,6 +73,7 @@ This package provides the Haskell %{pkg_name} library development files.
 
 %prep
 %autosetup -n %{pkg_name}-%{version}
+cp -p %{SOURCE1} %{pkg_name}.cabal
 
 %build
 %ghc_lib_build