1 files changed, 6 insertions, 0 deletions

diff --git a/src/variable.h b/src/variable.h
index 1b5542e..c8679a8 100644
--- a/src/variable.h
+++ b/src/variable.h
@@ -2,12 +2,15 @@
 #define VARIABLE_H
 
 #include "types.h"
+#include <bu/archivebase.h>
 
 /**
  * A build variable, which is basically a flexible, limited type range variant.
  */
 class Variable
 {
+friend Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Variable &v );
+friend Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Variable &v );
 public:
         enum Type
         {
@@ -112,4 +115,7 @@ namespace Bu
 Bu::Formatter &operator<<( Bu::Formatter &f, const Variable::Type &t );
 Bu::Formatter &operator<<( Bu::Formatter &f, const Variable &v );
 
+Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Variable &v );
+Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Variable &v );
+
 #endif