made Setting class non-abstract

apps/opencs/model/prefs/setting.cpp

@@ -16,6 +16,11 @@ CSMPrefs::Setting::Setting (Category *parent, Settings::Manager *values,
 
 CSMPrefs::Setting:: ~Setting() {}
 
+std::pair<QWidget *, QWidget *> CSMPrefs::Setting::makeWidgets (QWidget *parent)
+{
+    return std::pair<QWidget *, QWidget *> (0, 0);
+}
+
 const CSMPrefs::Category *CSMPrefs::Setting::getParent() const
 {
     return mParent;

apps/opencs/model/prefs/setting.hpp

@@ -40,7 +40,7 @@ namespace CSMPrefs
             ///
             /// \note first can be a 0-pointer, which means that the label is part of the input
             /// widget.
-            virtual std::pair<QWidget *, QWidget *> makeWidgets (QWidget *parent) = 0;
+            virtual std::pair<QWidget *, QWidget *> makeWidgets (QWidget *parent);
 
             const Category *getParent() const;