Do not put wired-in things in interface files

[ghc-hetmet.git] / compiler / iface / MkIface.lhs

diff --git a/compiler/iface/MkIface.lhs b/compiler/iface/MkIface.lhs
index cafb6b6..1e85ac4 100644 (file)
--- a/compiler/iface/MkIface.lhs
+++ b/compiler/iface/MkIface.lhs
@@ -279,8 +279,10 @@ mkIface hsc_env maybe_old_iface
 
                ; decls  = [ tyThingToIfaceDecl ext_nm_rhs thing 
                           | thing <- typeEnvElts type_env, 
-                            not (isImplicitName (getName thing)) ]
+                            let name = getName thing,
+                            not (isImplicitName name || isWiredInName name) ]
                        -- Don't put implicit Ids and class tycons in the interface file
+                       -- Nor wired-in things; the compiler knows about them anyhow
 
                ; fixities    = [(occ,fix) | FixItem occ fix _ <- nameEnvElts fix_env]
                ; deprecs     = mkIfaceDeprec src_deprecs