release: 0.1.52

[lilypond.git] / lily / include / drul-array.hh

diff --git a/lily/include/drul-array.hh b/lily/include/drul-array.hh
index 69db537a9b60c225c8bfbb188c850376c7bd91e1..962fd2b6c21d2a7e8b98f6de03e19974c52a5370 100644 (file)
--- a/lily/include/drul-array.hh
+++ b/lily/include/drul-array.hh
@@ -12,6 +12,8 @@
 
 #include "direction.hh"
 
+#include <assert.h>
+
 /**
   Left/right or Up/down arrays. Drul is nicer sounding than udlr
  */