Fix flaggery for RULES (cf Trac #2497)

[ghc-hetmet.git] / compiler / rename / RnSource.lhs

diff --git a/compiler/rename/RnSource.lhs b/compiler/rename/RnSource.lhs
index 27de40f..cebc674 100644 (file)
--- a/compiler/rename/RnSource.lhs
+++ b/compiler/rename/RnSource.lhs
@@ -174,7 +174,9 @@ rnSrcDecls shadowP group@(HsGroup {hs_valds  = val_decls,
    -- (H) Rename Everything else
 
    (rn_inst_decls,    src_fvs2) <- rnList rnSrcInstDecl   inst_decls ;
-   (rn_rule_decls,    src_fvs3) <- rnList rnHsRuleDecl    rule_decls ;
+   (rn_rule_decls,    src_fvs3) <- setOptM Opt_ScopedTypeVariables $
+                                  rnList rnHsRuleDecl    rule_decls ;
+                          -- Inside RULES, scoped type variables are on
    (rn_foreign_decls, src_fvs4) <- rnList rnHsForeignDecl foreign_decls ;
    (rn_default_decls, src_fvs5) <- rnList rnDefaultDecl   default_decls ;
    (rn_deriv_decls,   src_fvs6) <- rnList rnSrcDerivDecl  deriv_decls ;