1 files changed, 5 insertions, 0 deletions
diff --git a/dw/ruler.cc b/dw/ruler.cc
index 3d3bc0b8..82cc3299 100644
--- a/dw/ruler.cc
+++ b/dw/ruler.cc
@@ -51,6 +51,11 @@ bool Ruler::isBlockLevel ()
    return true;
 }
 
+void Ruler::containerSizeChangedForChildren ()
+{
+   // Nothing to do.
+}
+
 bool Ruler::usesAvailWidth ()
 {
    return true;