--- libebml-1.3.6/ebml/SafeReadIOCallback.h.orig	2018-04-26 14:19:40.736503200 +0300
+++ libebml-1.3.6/ebml/SafeReadIOCallback.h	2018-04-26 14:23:07.817433300 +0300
@@ -45,7 +45,7 @@
 
 class EBML_DLL_API SafeReadIOCallback {
 public:
-  class EndOfStreamX {
+  class EBML_DLL_API EndOfStreamX {
   public:
     size_t mMissingBytes;
     EndOfStreamX(std::size_t MissingBytes);