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-rw-r--r--libs/ardour/ardour/transport_fsm.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libs/ardour/ardour/transport_fsm.h b/libs/ardour/ardour/transport_fsm.h
index 689db5c16c..f175f8161a 100644
--- a/libs/ardour/ardour/transport_fsm.h
+++ b/libs/ardour/ardour/transport_fsm.h
@@ -5,6 +5,10 @@
#undef nil
#endif
+#ifndef BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
+#endif
+
#include <boost/weak_ptr.hpp>
#include <boost/msm/back/state_machine.hpp>
#include <boost/msm/back/tools.hpp>