File 0002-libutil-fix-unreachable-case.patch of Package nix

Index: nix-2.33.0/src/libutil/nar-accessor.cc
===================================================================
--- nix-2.33.0.orig/src/libutil/nar-accessor.cc
+++ nix-2.33.0/src/libutil/nar-accessor.cc
@@ -331,6 +331,7 @@ static ListNarResult<deep> listNarImpl(S
     case SourceAccessor::Type::tUnknown:
         assert(false); // cannot happen for NARs
     }
+    __builtin_unreachable();
 }
 
 NarListing listNarDeep(SourceAccessor & accessor, const CanonPath & path)