add export visibility control to libpbd (works thus far on linux/gcc)

1 files changed, 5 insertions, 3 deletions

diff --git a/libs/pbd/pbd/rcu.h b/libs/pbd/pbd/rcu.h
index 909954fc0e..6ee68afabf 100644
--- a/libs/pbd/pbd/rcu.h
+++ b/libs/pbd/pbd/rcu.h
@@ -25,6 +25,8 @@
 
 #include <list>
 
+#include "pbd/libpbd_visibility.h"
+
 /** @file Defines a set of classes to implement Read-Copy-Update.  We do not attempt to define RCU here - use google.
 
    The design consists of two parts: an RCUManager and an RCUWriter.
@@ -43,7 +45,7 @@
    and managed object.
 */
 template<class T>
-class RCUManager
+class LIBPBD_API RCUManager
 {
   public:
 
@@ -109,7 +111,7 @@ class RCUManager
    means that no actual objects will be deleted incorrectly if this is misused.
 */
 template<class T>
-class SerializedRCUManager : public RCUManager<T>
+class LIBPBD_API SerializedRCUManager : public RCUManager<T>
 {
 public:
 
@@ -212,7 +214,7 @@ private:
 
 */
 template<class T>
-class RCUWriter
+class LIBPBD_API RCUWriter
 {
 public: