add missing Q_OBJECT macros

src/app/historyAction.h

@@ -31,6 +31,8 @@ class KActionCollection;
 
 class HistoryAction : QAction
 {
+    Q_OBJECT
+
     HistoryAction(const QIcon &icon, const QString &text, KActionCollection *ac);
 
     friend class HistoryCollection;

src/part/part.h

@@ -43,6 +43,8 @@ class SummaryWidget;
 
 class BrowserExtension : public KParts::BrowserExtension
 {
+    Q_OBJECT
+
 public:
     explicit BrowserExtension(Part*);
 };

src/part/summaryWidget.cpp

@@ -63,6 +63,8 @@ struct DiskList : QList<Disk>
 
 class MyRadialMap : public RadialMap::Widget
 {
+    Q_OBJECT
+
 public:
     MyRadialMap(QWidget *parent)
             : RadialMap::Widget(parent, true)
@@ -187,3 +189,5 @@ DiskList::DiskList()
 }
 
 }
+
+#include "summaryWidget.moc"