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-rw-r--r--sigc++/signal_base.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/sigc++/signal_base.h b/sigc++/signal_base.h
index de72647..0c491fc 100644
--- a/sigc++/signal_base.h
+++ b/sigc++/signal_base.h
@@ -44,8 +44,7 @@ namespace internal
* invalid slots from the list.
*/
struct SIGC_API signal_impl
- : public notifiable,
- public std::enable_shared_from_this<signal_impl>
+ : public std::enable_shared_from_this<signal_impl>
{
using size_type = std::size_t;
using slot_list = std::list<slot_base>;