Follow Digraph changes in MkIface

diff --git a/compiler/iface/MkIface.lhs b/compiler/iface/MkIface.lhs
index f953107..3f1ee46 100644 (file)
--- a/compiler/iface/MkIface.lhs
+++ b/compiler/iface/MkIface.lhs
@@ -426,7 +426,7 @@ addFingerprints hsc_env mb_old_fingerprint iface0 new_decls
                   where n = ifName d
 
         -- strongly-connected groups of declarations, in dependency order
-       groups = stronglyConnComp edges
+       groups = stronglyConnCompFromEdgedVertices edges
 
        global_hash_fn = mkHashFun hsc_env eps