1 files changed, 8 insertions, 0 deletions
diff --git a/apt-pkg/edsp/edspsystem.h b/apt-pkg/edsp/edspsystem.h
index 8f5452dcb..9e34345cd 100644
--- a/apt-pkg/edsp/edspsystem.h
+++ b/apt-pkg/edsp/edspsystem.h
@@ -11,6 +11,7 @@
 
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/error.h>
 
 #include <memory>
 #include <vector>
@@ -37,6 +38,13 @@ public:
    virtual bool FindIndex(pkgCache::PkgFileIterator File,
 			  pkgIndexFile *&Found) const APT_OVERRIDE;
 
+   bool MultiArchSupported() const override { return true; }
+   std::vector<std::string> ArchitecturesSupported() const override { return {}; };
+
+   bool LockInner() override { return _error->Error("LockInner is not implemented"); };
+   bool UnLockInner(bool NoErrors=false) override { return _error->Error("UnLockInner is not implemented"); };
+   bool IsLocked() override { return true; };
+
    explicit edspLikeSystem(char const * const Label);
    virtual ~edspLikeSystem();
 };