now it compiles

pvAccessApp/client/ChannelAccessFactory.cpp

@@ -0,0 +1,24 @@
+/*ChannelAccessFactory.cpp*/
+
+#include <lock.h>
+#include "pvAccess.h"
+#include "pvData.h"
+#include "factory.h"
+
+namespace epics { namespace pvAccess {
+
+static ChannelAccess* channelAccess = 0;
+
+
+ ChannelAccess * getChannelAccess() {
+     static Mutex mutex = Mutex();
+     Lock guard(&mutex);
+
+     if(channelAccess==0){
+          //channelAccess = new ChannelAccessImpl();
+     }
+     return channelAccess;
+ }
+
+}}
+