architectural changes to tex2lyx

[lyx.git] / src / mathed / math_diffinset.h

diff --git a/src/mathed/math_diffinset.h b/src/mathed/math_diffinset.h
index 84a867aec613411ba58455c10f7c9464a89b319e..74e4bc11eeb3bea926cdb60a94c297431c2bfd59 100644 (file)
--- a/src/mathed/math_diffinset.h
+++ b/src/mathed/math_diffinset.h
@@ -13,7 +13,7 @@ public:
        ///
        explicit MathDiffInset();
        ///
-       InsetBase * clone() const;
+       virtual std::auto_ptr<InsetBase> clone() const;
        ///
        void addDer(MathArray const & der);
        ///