X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FUndo.h;h=887f7627e1d54854800a34c00678971f77d1f63e;hb=233cfed3331e2a8fef39e2dff483dadbf011b772;hp=c2b9b5d074b4e6e8fbef33e40e5aac73e74df3b3;hpb=f7a11ca7115064710b98bedc64d724ca15362527;p=lyx.git

diff --git a/src/Undo.h b/src/Undo.h
index c2b9b5d074..887f7627e1 100644
--- a/src/Undo.h
+++ b/src/Undo.h
@@ -22,11 +22,8 @@
 namespace lyx {
 
 class Buffer;
-class BufferParams;
 class CursorData;
 class Inset;
-class MathData;
-class ParagraphList;
 
 /// This is used to combine consecutive undo recordings of the same kind.
 enum UndoKind {
@@ -139,7 +136,7 @@ private:
  */
 class UndoGroupHelper {
 public:
-	UndoGroupHelper(Buffer * buf = 0);
+	UndoGroupHelper(Buffer * buf);
 
 	~UndoGroupHelper();