1 files changed, 8 insertions, 1 deletions

diff --git a/src/archival.h b/src/archival.h
index d758f3d..76f0f5f 100644
--- a/src/archival.h
+++ b/src/archival.h
@@ -8,6 +8,8 @@
 #ifndef BU_ARCHIVAL_H
 #define BU_ARCHIVAL_H
 
+#include "bu/archivebase.h"
+
 namespace Bu
 {
         /**
@@ -38,8 +40,13 @@ namespace Bu
                  * you are loading or saving.
                  * @param ar A reference to the Archive object to use.
                  */
-                virtual void archive( class Archive &ar )=0;
+                virtual void archive( class ArchiveBase &ar )=0;
         };
+
+        ArchiveBase &operator<<(ArchiveBase &, const class Bu::Archival &);
+        ArchiveBase &operator<<(ArchiveBase &, class Bu::Archival &);
+        ArchiveBase &operator>>(ArchiveBase &, class Bu::Archival &);
+
 }
 
 #endif