Use standard C99 (and Qt) types for 64-bit integers

src/qt/bitcoin.cpp

@@ -9,6 +9,7 @@
 #include "headers.h"
 #include "init.h"
 
+#include <QtGlobal>
 #include <QApplication>
 #include <QMessageBox>
 #include <QThread>
@@ -56,7 +57,7 @@ int ThreadSafeMessageBox(const std::string& message, const std::string& caption,
     return 4;
 }
 
-bool ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption, wxWindow* parent)
+bool ThreadSafeAskFee(qint64 nFeeRequired, const std::string& strCaption, wxWindow* parent)
 {
     if(!guiref)
         return false;