epicsAutoMutex has a new name, fixed free lists, and use c++ thread class,

and fixed dll symbol exports

src/ca/access.cpp

@@ -28,6 +28,7 @@
  */
 #define CAC_VERSION_GLOBAL
 
+#define epicsExportSharedSymbols
 #include "iocinf.h"
 #include "oldAccess.h"
 #include "autoPtrDestroy.h"