Keep track of family instance modules

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

diff --git a/compiler/iface/IfaceSyn.lhs b/compiler/iface/IfaceSyn.lhs
index 4f37ca0..7efa029 100644 (file)
--- a/compiler/iface/IfaceSyn.lhs
+++ b/compiler/iface/IfaceSyn.lhs
@@ -17,7 +17,7 @@ module IfaceSyn (
 
        -- Equality
        GenIfaceEq(..), IfaceEq, (&&&), bool, eqListBy, eqMaybeBy,
-       eqIfDecl, eqIfInst, eqIfRule, checkBootDecl,
+       eqIfDecl, eqIfInst, eqIfFamInst, eqIfRule, checkBootDecl,
        
        -- Pretty printing
        pprIfaceExpr, pprIfaceDeclHead 
@@ -649,6 +649,9 @@ eqWith = eq_ifTvBndrs emptyEqEnv
 eqIfInst d1 d2 = bool (ifDFun d1 == ifDFun d2 && ifOFlag d1 == ifOFlag d2)
 -- All other changes are handled via the version info on the dfun
 
+eqIfFamInst d1 d2 = bool (ifFamInstTyCon d1 == ifFamInstTyCon d2)
+-- All other changes are handled via the version info on the tycon
+
 eqIfRule (IfaceRule n1 a1 bs1 f1 es1 rhs1 o1)
         (IfaceRule n2 a2 bs2 f2 es2 rhs2 o2)
        = bool (n1==n2 && a1==a2 && o1 == o2) &&&