11 files changed, 24 insertions, 23 deletions
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index 2fa8de6fd8..1269d7a119 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -12,8 +12,6 @@
 
 #include <boost/filesystem/operations.hpp>
 
-#define _(x) std::string(x) /* Keep the _() around in case gettext or such will be used later to translate non-UI */
-
 using namespace std;
 using namespace json_spirit;
 
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 78f5c2c4b6..075d529408 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -11,7 +11,6 @@
 #include "keystore.h"
 #include "script/script.h"
 #include "script/sign.h"
-#include "ui_interface.h" // for _(...)
 #include "univalue/univalue.h"
 #include "util.h"
 #include "utilstrencodings.h"
@@ -26,7 +25,6 @@ using namespace std;
 
 static bool fCreateBlank;
 static map<string,UniValue> registers;
-CClientUIInterface uiInterface;
 
 static bool AppInitRawTx(int argc, char* argv[])
 {
diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index a0a96c2dfa..84df00527c 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -8,7 +8,6 @@
 #include "init.h"
 #include "main.h"
 #include "noui.h"
-#include "ui_interface.h"
 #include "util.h"
 
 #include <boost/algorithm/string/predicate.hpp>
diff --git a/src/init.cpp b/src/init.cpp
index 4d9c233c8c..7f95b5f927 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -68,7 +68,7 @@ enum BindFlags {
 };
 
 static const char* FEE_ESTIMATES_FILENAME="fee_estimates.dat";
-CClientUIInterface uiInterface;
+CClientUIInterface uiInterface; // Declared but not defined in ui_interface.h
 
 //////////////////////////////////////////////////////////////////////////////
 //
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 3ae780abfd..1abce1eb21 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -533,7 +533,7 @@ int main(int argc, char *argv[])
     // Now that QSettings are accessible, initialize translations
     QTranslator qtTranslatorBase, qtTranslator, translatorBase, translator;
     initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
-    uiInterface.Translate.connect(Translate);
+    translationInterface.Translate.connect(Translate);
 
     // Show help message immediately after parsing command-line options (for "-lang") and setting locale,
     // but before showing splash screen.
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index 9b235f9130..a7f705d2b2 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -14,7 +14,6 @@
 #include "main.h"
 #include "script/script.h"
 #include "timedata.h"
-#include "ui_interface.h"
 #include "util.h"
 #include "wallet/wallet.h"
 
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index 428e1049dc..ccb7cf15e9 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -7,7 +7,6 @@
 
 #include "rpcprotocol.h"
 #include "util.h"
-#include "ui_interface.h"
 
 #include <set>
 #include <stdint.h>
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index a2cb78c989..4057eccbed 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -20,7 +20,7 @@
 #include <boost/test/unit_test.hpp>
 #include <boost/thread.hpp>
 
-CClientUIInterface uiInterface;
+CClientUIInterface uiInterface; // Declared but not defined in ui_interface.h
 CWallet* pwalletMain;
 
 extern bool fPrintToConsole;
diff --git a/src/ui_interface.h b/src/ui_interface.h
index 3f11a1ddab..32a92a4b81 100644
--- a/src/ui_interface.h
+++ b/src/ui_interface.h
@@ -78,9 +78,6 @@ public:
     /** Progress message during initialization. */
     boost::signals2::signal<void (const std::string &message)> InitMessage;
 
-    /** Translate a message to the native language of the user. */
-    boost::signals2::signal<std::string (const char* psz)> Translate;
-
     /** Number of network connections changed. */
     boost::signals2::signal<void (int newNumConnections)> NotifyNumConnectionsChanged;
 
@@ -102,14 +99,4 @@ public:
 
 extern CClientUIInterface uiInterface;
 
-/**
- * Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
- * If no translation slot is registered, nothing is returned, and simply return the input.
- */
-inline std::string _(const char* psz)
-{
-    boost::optional<std::string> rv = uiInterface.Translate(psz);
-    return rv ? (*rv) : psz;
-}
-
 #endif // BITCOIN_UI_INTERFACE_H
diff --git a/src/util.cpp b/src/util.cpp
index 5fef3a40dd..78c7731500 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -104,6 +104,7 @@ string strMiscWarning;
 bool fLogTimestamps = false;
 bool fLogIPs = false;
 volatile bool fReopenDebugLog = false;
+CTranslationInterface translationInterface;
 
 /** Init OpenSSL library multithreading support */
 static CCriticalSection** ppmutexOpenSSL;
diff --git a/src/util.h b/src/util.h
index 9b5a4153dd..483d9d7858 100644
--- a/src/util.h
+++ b/src/util.h
@@ -25,8 +25,17 @@
 #include <vector>
 
 #include <boost/filesystem/path.hpp>
+#include <boost/signals2/signal.hpp>
 #include <boost/thread/exceptions.hpp>
 
+/** Signals for translation. */
+class CTranslationInterface
+{
+public:
+    /** Translate a message to the native language of the user. */
+    boost::signals2::signal<std::string (const char* psz)> Translate;
+};
+
 extern std::map<std::string, std::string> mapArgs;
 extern std::map<std::string, std::vector<std::string> > mapMultiArgs;
 extern bool fDebug;
@@ -37,6 +46,17 @@ extern std::string strMiscWarning;
 extern bool fLogTimestamps;
 extern bool fLogIPs;
 extern volatile bool fReopenDebugLog;
+extern CTranslationInterface translationInterface;
+
+/**
+ * Translation function: Call Translate signal on UI interface, which returns a boost::optional result.
+ * If no translation slot is registered, nothing is returned, and simply return the input.
+ */
+inline std::string _(const char* psz)
+{
+    boost::optional<std::string> rv = translationInterface.Translate(psz);
+    return rv ? (*rv) : psz;
+}
 
 void SetupEnvironment();