Adapt to new api

CMakeLists.txt

@@ -73,7 +73,7 @@ set(LIBKLEO_LIB_VERSION "5.17.40")
 set(AKONADI_LIB_VERSION "5.17.40")
 set(INCIDENCEEDITOR_LIB_VERSION "5.17.40")
 set(KTNEF_LIB_VERSION "5.17.40")
-set(MESSAGELIB_LIB_VERSION "5.17.52")
+set(MESSAGELIB_LIB_VERSION "5.17.53")
 set(AKONADICALENDAR_LIB_VERSION "5.17.40")
 set(CALENDAR_UTILS_VERSION "5.17.40")
 set(KPIMTEXTEDIT_LIB_VERSION "5.17.40")

kmail/checkbeforedeletemailplugins/confirmbeforedeleting/confirmbeforedeletinginterface.cpp

@@ -13,3 +13,9 @@ ConfirmBeforeDeletingInterface::ConfirmBeforeDeletingInterface(QObject *parent)
 ConfirmBeforeDeletingInterface::~ConfirmBeforeDeletingInterface()
 {
 }
+
+bool ConfirmBeforeDeletingInterface::exec()
+{
+    // TODO
+    return false;
+}

kmail/checkbeforedeletemailplugins/confirmbeforedeleting/confirmbeforedeletinginterface.h

@@ -15,4 +15,6 @@ class ConfirmBeforeDeletingInterface : public MessageViewer::MessageViewerCheckB
 public:
     explicit ConfirmBeforeDeletingInterface(QObject *parent = nullptr);
     ~ConfirmBeforeDeletingInterface() override;
+
+    Q_REQUIRED_RESULT bool exec() override;
 };