bitcoin-wallet tool: Drop MakeChain calls

Pass null Chain interface pointer to CWallet. This is needed to drop
libbitcoin_server dependency and avoid linking node code.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index cefdf479c6..a09c27262e 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -704,7 +704,7 @@ private:
     bool AddWatchOnly(const CScript& dest) override EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
 
     /** Interface for accessing chain state. */
-    interfaces::Chain& m_chain;
+    interfaces::Chain* m_chain;
 
     /** Wallet location which includes wallet name (see WalletLocation). */
     WalletLocation m_location;
@@ -767,7 +767,7 @@ public:
     unsigned int nMasterKeyMaxID = 0;
 
     /** Construct wallet with specified name and database implementation. */
-    CWallet(interfaces::Chain& chain, const WalletLocation& location, std::unique_ptr<WalletDatabase> database) : m_chain(chain), m_location(location), database(std::move(database))
+    CWallet(interfaces::Chain* chain, const WalletLocation& location, std::unique_ptr<WalletDatabase> database) : m_chain(chain), m_location(location), database(std::move(database))
     {
     }
 
@@ -795,7 +795,7 @@ public:
     std::unique_ptr<interfaces::Handler> m_chain_notifications_handler;
 
     /** Interface for accessing chain state. */
-    interfaces::Chain& chain() const { return m_chain; }
+    interfaces::Chain& chain() const { assert(m_chain); return *m_chain; }
 
     const CWalletTx* GetWalletTx(const uint256& hash) const;