1 files changed, 2 insertions, 1 deletions
diff --git a/src/extension/implementation/implementation.h b/src/extension/implementation/implementation.h
index b0230b7c4..9d679982a 100644
--- a/src/extension/implementation/implementation.h
+++ b/src/extension/implementation/implementation.h
@@ -29,7 +29,7 @@ namespace Gtk {
 }
 
 class SPDocument;
-class SPStyle;
+struct SPStyle;
 
 namespace Inkscape {
 
@@ -104,6 +104,7 @@ public:
     virtual bool check(Inkscape::Extension::Extension * /*module*/) { return true; }
 
     virtual bool cancelProcessing () { return true; }
+    virtual bool wasCancelled () { return false; }
     virtual void commitDocument () {}
 
     // ----- Input functions -----