Cleanup code using forward declarations.

Use misc methods of avoiding unnecesary header includes.
Replace int typedefs with int##_t from stdint.h.
Replace PRI64[xdu] with PRI[xdu]64 from inttypes.h.
Normalize QT_VERSION ifs where possible.
Resolve some indirect dependencies as direct ones.
Remove extern declarations from .cpp files.

67 files changed, 394 insertions, 329 deletions

diff --git a/src/qt/aboutdialog.cpp b/src/qt/aboutdialog.cpp
index e3ef92caea..797ebf97ed 100644
--- a/src/qt/aboutdialog.cpp
+++ b/src/qt/aboutdialog.cpp
@@ -6,6 +6,7 @@
 #include "ui_aboutdialog.h"
 
 #include "clientmodel.h"
+
 #include "clientversion.h"
 
 AboutDialog::AboutDialog(QWidget *parent) :
diff --git a/src/qt/aboutdialog.h b/src/qt/aboutdialog.h
index 72545f9b21..b02be74844 100644
--- a/src/qt/aboutdialog.h
+++ b/src/qt/aboutdialog.h
@@ -7,10 +7,11 @@
 
 #include <QDialog>
 
+class ClientModel;
+
 namespace Ui {
     class AboutDialog;
 }
-class ClientModel;
 
 /** "About" dialog box */
 class AboutDialog : public QDialog
diff --git a/src/qt/addressbookpage.cpp b/src/qt/addressbookpage.cpp
index cef307b86d..5e82d4d17d 100644
--- a/src/qt/addressbookpage.cpp
+++ b/src/qt/addressbookpage.cpp
@@ -11,14 +11,14 @@
 
 #include "addresstablemodel.h"
 #include "bitcoingui.h"
-#include "editaddressdialog.h"
 #include "csvmodelwriter.h"
+#include "editaddressdialog.h"
 #include "guiutil.h"
 
-#include <QSortFilterProxyModel>
-#include <QClipboard>
-#include <QMessageBox>
+#include <QIcon>
 #include <QMenu>
+#include <QMessageBox>
+#include <QSortFilterProxyModel>
 
 AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     QDialog(parent),
diff --git a/src/qt/addressbookpage.h b/src/qt/addressbookpage.h
index 60b5d8c47f..a9192efc84 100644
--- a/src/qt/addressbookpage.h
+++ b/src/qt/addressbookpage.h
@@ -7,17 +7,19 @@
 
 #include <QDialog>
 
+class AddressTableModel;
+class OptionsModel;
+
 namespace Ui {
     class AddressBookPage;
 }
-class AddressTableModel;
 
 QT_BEGIN_NAMESPACE
-class QTableView;
 class QItemSelection;
-class QSortFilterProxyModel;
 class QMenu;
 class QModelIndex;
+class QSortFilterProxyModel;
+class QTableView;
 QT_END_NAMESPACE
 
 /** Widget that shows a list of sending or receiving addresses.
diff --git a/src/qt/addresstablemodel.cpp b/src/qt/addresstablemodel.cpp
index ab1900fbf3..d686cd4fd8 100644
--- a/src/qt/addresstablemodel.cpp
+++ b/src/qt/addresstablemodel.cpp
@@ -7,8 +7,8 @@
 #include "guiutil.h"
 #include "walletmodel.h"
 
-#include "wallet.h"
 #include "base58.h"
+#include "wallet.h"
 
 #include <QFont>
 #include <QDebug>
diff --git a/src/qt/addresstablemodel.h b/src/qt/addresstablemodel.h
index 1ddee1aeb5..71691f5a26 100644
--- a/src/qt/addresstablemodel.h
+++ b/src/qt/addresstablemodel.h
@@ -9,9 +9,10 @@
 #include <QStringList>
 
 class AddressTablePriv;
-class CWallet;
 class WalletModel;
 
+class CWallet;
+
 /**
    Qt model of the address book in the core. This allows views to access and modify the address book.
  */
diff --git a/src/qt/askpassphrasedialog.cpp b/src/qt/askpassphrasedialog.cpp
index 521585644e..2a6d6abc35 100644
--- a/src/qt/askpassphrasedialog.cpp
+++ b/src/qt/askpassphrasedialog.cpp
@@ -8,9 +8,11 @@
 #include "guiconstants.h"
 #include "walletmodel.h"
 
+#include "allocators.h"
+
+#include <QKeyEvent>
 #include <QMessageBox>
 #include <QPushButton>
-#include <QKeyEvent>
 
 AskPassphraseDialog::AskPassphraseDialog(Mode mode, QWidget *parent) :
     QDialog(parent),
diff --git a/src/qt/askpassphrasedialog.h b/src/qt/askpassphrasedialog.h
index 838ad21beb..4c92afcd54 100644
--- a/src/qt/askpassphrasedialog.h
+++ b/src/qt/askpassphrasedialog.h
@@ -7,10 +7,11 @@
 
 #include <QDialog>
 
+class WalletModel;
+
 namespace Ui {
     class AskPassphraseDialog;
 }
-class WalletModel;
 
 /** Multifunctional dialog to ask for passphrases. Used for encryption, unlocking, and changing the passphrase.
  */
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 1e2f93f1e7..2fa7979eae 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -3,28 +3,35 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bitcoingui.h"
+
 #include "clientmodel.h"
-#include "walletmodel.h"
-#include "optionsmodel.h"
-#include "guiutil.h"
 #include "guiconstants.h"
-#include "init.h"
-#include "util.h"
-#include "ui_interface.h"
+#include "guiutil.h"
+#include "intro.h"
+#include "optionsmodel.h"
 #include "paymentserver.h"
 #include "splashscreen.h"
-#include "intro.h"
+#include "walletmodel.h"
+
+#include "init.h"
+#include "main.h"
+#include "ui_interface.h"
+#include "util.h"
 
+#include <stdint.h>
+
+#include <boost/filesystem/operations.hpp>
 #include <QApplication>
+#include <QLibraryInfo>
+#include <QLocale>
 #include <QMessageBox>
+#include <QSettings>
+#include <QTimer>
+#include <QTranslator>
+
 #if QT_VERSION < 0x050000
 #include <QTextCodec>
 #endif
-#include <QLocale>
-#include <QTimer>
-#include <QTranslator>
-#include <QLibraryInfo>
-#include <QSettings>
 
 #if defined(BITCOIN_NEED_QT_PLUGINS) && !defined(_BITCOIN_QT_PLUGINS_INCLUDED)
 #define _BITCOIN_QT_PLUGINS_INCLUDED
@@ -68,7 +75,7 @@ static bool ThreadSafeMessageBox(const std::string& message, const std::string&
     }
 }
 
-static bool ThreadSafeAskFee(int64 nFeeRequired)
+static bool ThreadSafeAskFee(int64_t nFeeRequired)
 {
     if(!guiref)
         return false;
diff --git a/src/qt/bitcoinamountfield.cpp b/src/qt/bitcoinamountfield.cpp
index f722a454f1..6b083331d3 100644
--- a/src/qt/bitcoinamountfield.cpp
+++ b/src/qt/bitcoinamountfield.cpp
@@ -4,15 +4,14 @@
 
 #include "bitcoinamountfield.h"
 
-#include "qvaluecombobox.h"
 #include "bitcoinunits.h"
 #include "guiconstants.h"
+#include "qvaluecombobox.h"
 
 #include <QApplication>
+#include <QDoubleSpinBox>
 #include <QHBoxLayout>
 #include <QKeyEvent>
-#include <QDoubleSpinBox>
-
 #include <qmath.h> // for qPow()
 
 BitcoinAmountField::BitcoinAmountField(QWidget *parent):
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 0b6bd517e5..a1bb0ee2f4 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -4,49 +4,54 @@
 
 #include "bitcoingui.h"
 
-#include "optionsdialog.h"
 #include "aboutdialog.h"
-#include "clientmodel.h"
-#include "walletmodel.h"
-#include "walletframe.h"
-#include "optionsmodel.h"
 #include "bitcoinunits.h"
+#include "clientmodel.h"
 #include "guiconstants.h"
-#include "notificator.h"
 #include "guiutil.h"
+#include "notificator.h"
+#include "optionsdialog.h"
+#include "optionsmodel.h"
 #include "rpcconsole.h"
-#include "ui_interface.h"
-#include "wallet.h"
-#include "init.h"
+#include "walletframe.h"
+#include "walletmodel.h"
 
 #ifdef Q_OS_MAC
 #include "macdockiconhandler.h"
 #endif
 
+#include "init.h"
+#include "ui_interface.h"
+
+#include <iostream>
+
 #include <QApplication>
-#include <QMenuBar>
-#include <QMenu>
+#include <QDateTime>
+#include <QDesktopWidget>
+#include <QDragEnterEvent>
 #include <QIcon>
-#include <QVBoxLayout>
-#include <QToolBar>
-#include <QStatusBar>
 #include <QLabel>
+#include <QListWidget>
+#include <QMenu>
+#include <QMenuBar>
 #include <QMessageBox>
+#include <QMimeData>
+#include <QMovie>
 #include <QProgressBar>
+#include <QSettings>
 #include <QStackedWidget>
-#include <QDateTime>
-#include <QMovie>
+#include <QStatusBar>
+#include <QStyle>
 #include <QTimer>
-#include <QDragEnterEvent>
+#include <QToolBar>
+#include <QVBoxLayout>
+
 #if QT_VERSION < 0x050000
 #include <QUrl>
 #include <QTextDocument>
+#else
+#include <QUrlQuery>
 #endif
-#include <QMimeData>
-#include <QStyle>
-#include <QListWidget>
-
-#include <iostream>
 
 const QString BitcoinGUI::DEFAULT_WALLET = "~Default";
 
diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index 6a2058e0b6..2e3b3e74b9 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -6,32 +6,22 @@
 #define BITCOINGUI_H
 
 #include <QMainWindow>
-#include <QSystemTrayIcon>
 #include <QMap>
+#include <QSystemTrayIcon>
 
-class WalletFrame;
-class WalletView;
 class ClientModel;
-class WalletModel;
-class WalletStack;
-class OverviewPage;
-class SendCoinsDialog;
-class SendCoinsRecipient;
-class SignVerifyMessageDialog;
 class Notificator;
 class RPCConsole;
+class SendCoinsRecipient;
+class WalletFrame;
+class WalletModel;
 
 class CWallet;
 
 QT_BEGIN_NAMESPACE
+class QAction;
 class QLabel;
-class QModelIndex;
 class QProgressBar;
-class QStackedWidget;
-class QUrl;
-class QListWidget;
-class QPushButton;
-class QAction;
 QT_END_NAMESPACE
 
 /**
diff --git a/src/qt/bitcoinstrings.cpp b/src/qt/bitcoinstrings.cpp
index 457090b1f5..45a9bf6a41 100644
--- a/src/qt/bitcoinstrings.cpp
+++ b/src/qt/bitcoinstrings.cpp
@@ -1,4 +1,7 @@
+
+
 #include <QtGlobal>
+
 // Automatically generated by extract_strings.py
 #ifdef __GNUC__
 #define UNUSED __attribute__((unused))
@@ -221,4 +224,4 @@ QT_TRANSLATE_NOOP("bitcoin-core", "Warning"),
 QT_TRANSLATE_NOOP("bitcoin-core", "Warning: This version is obsolete, upgrade required!"),
 QT_TRANSLATE_NOOP("bitcoin-core", "You need to rebuild the database using -reindex to change -txindex"),
 QT_TRANSLATE_NOOP("bitcoin-core", "wallet.dat corrupt, salvage failed"),
-};
\ No newline at end of file
+};
diff --git a/src/qt/bitcoinunits.h b/src/qt/bitcoinunits.h
index 3342eeec17..46517fc07b 100644
--- a/src/qt/bitcoinunits.h
+++ b/src/qt/bitcoinunits.h
@@ -5,8 +5,8 @@
 #ifndef BITCOINUNITS_H
 #define BITCOINUNITS_H
 
-#include <QString>
 #include <QAbstractListModel>
+#include <QString>
 
 /** Bitcoin unit definitions. Encapsulates parsing and formatting
    and serves as list model for drop-down selection boxes.
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index 872d714030..c64e411bca 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -5,21 +5,21 @@
 #include "clientmodel.h"
 
 #include "guiconstants.h"
-#include "optionsmodel.h"
-#include "addresstablemodel.h"
-#include "transactiontablemodel.h"
 
-#include "chainparams.h"
 #include "alert.h"
-#include "main.h"
+#include "chainparams.h"
 #include "checkpoints.h"
+#include "main.h"
+#include "net.h"
 #include "ui_interface.h"
 
+#include <stdint.h>
+
 #include <QDateTime>
-#include <QTimer>
 #include <QDebug>
+#include <QTimer>
 
-static const int64 nClientStartupTime = GetTime();
+static const int64_t nClientStartupTime = GetTime();
 
 ClientModel::ClientModel(OptionsModel *optionsModel, QObject *parent) :
     QObject(parent), optionsModel(optionsModel),
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index 008320dcc3..dcc528f4fd 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -7,9 +7,10 @@
 
 #include <QObject>
 
-class OptionsModel;
 class AddressTableModel;
+class OptionsModel;
 class TransactionTableModel;
+
 class CWallet;
 
 QT_BEGIN_NAMESPACE
diff --git a/src/qt/csvmodelwriter.h b/src/qt/csvmodelwriter.h
index 890deab092..29de251efe 100644
--- a/src/qt/csvmodelwriter.h
+++ b/src/qt/csvmodelwriter.h
@@ -5,8 +5,8 @@
 #ifndef CSVMODELWRITER_H
 #define CSVMODELWRITER_H
 
-#include <QObject>
 #include <QList>
+#include <QObject>
 
 QT_BEGIN_NAMESPACE
 class QAbstractItemModel;
diff --git a/src/qt/editaddressdialog.h b/src/qt/editaddressdialog.h
index 8746786162..a448c4b23f 100644
--- a/src/qt/editaddressdialog.h
+++ b/src/qt/editaddressdialog.h
@@ -7,10 +7,11 @@
 
 #include <QDialog>
 
+class AddressTableModel;
+
 namespace Ui {
     class EditAddressDialog;
 }
-class AddressTableModel;
 
 QT_BEGIN_NAMESPACE
 class QDataWidgetMapper;
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index eb50aa8edd..e6a1138f11 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -5,33 +5,12 @@
 #include "guiutil.h"
 
 #include "bitcoinaddressvalidator.h"
-#include "walletmodel.h"
 #include "bitcoinunits.h"
+#include "walletmodel.h"
 
-#include "util.h"
+#include "core.h"
 #include "init.h"
-
-#include <QApplication>
-#include <QDateTime>
-#include <QDoubleValidator>
-#include <QFont>
-#include <QLineEdit>
-#if QT_VERSION >= 0x050000
-#include <QUrlQuery>
-#else
-#include <QUrl>
-#endif
-#include <QTextDocument> // for Qt::mightBeRichText
-#include <QAbstractItemView>
-#include <QClipboard>
-#include <QFileDialog>
-#include <QDesktopServices>
-#include <QThread>
-#include <QSettings>
-#include <QDesktopWidget>
-
-#include <boost/filesystem.hpp>
-#include <boost/filesystem/fstream.hpp>
+#include "util.h"
 
 #ifdef WIN32
 #ifdef _WIN32_WINNT
@@ -46,9 +25,31 @@
 #ifndef NOMINMAX
 #define NOMINMAX
 #endif
-#include "shlwapi.h"
-#include "shlobj.h"
 #include "shellapi.h"
+#include "shlobj.h"
+#include "shlwapi.h"
+#endif
+
+#include <boost/filesystem.hpp>
+#include <boost/filesystem/fstream.hpp>
+#include <QAbstractItemView>
+#include <QApplication>
+#include <QClipboard>
+#include <QDateTime>
+#include <QDesktopServices>
+#include <QDesktopWidget>
+#include <QDoubleValidator>
+#include <QFileDialog>
+#include <QFont>
+#include <QLineEdit>
+#include <QSettings>
+#include <QTextDocument> // for Qt::mightBeRichText
+#include <QThread>
+
+#if QT_VERSION < 0x050000
+#include <QUrl>
+#else
+#include <QUrlQuery>
 #endif
 
 namespace GUIUtil {
diff --git a/src/qt/guiutil.h b/src/qt/guiutil.h
index 3c9f137ded..8bd0eab9de 100644
--- a/src/qt/guiutil.h
+++ b/src/qt/guiutil.h
@@ -5,19 +5,19 @@
 #ifndef GUIUTIL_H
 #define GUIUTIL_H
 
-#include <QString>
-#include <QObject>
 #include <QMessageBox>
+#include <QObject>
+#include <QString>
 
 class SendCoinsRecipient;
 
 QT_BEGIN_NAMESPACE
+class QAbstractItemView;
+class QDateTime;
 class QFont;
 class QLineEdit;
-class QWidget;
-class QDateTime;
 class QUrl;
-class QAbstractItemView;
+class QWidget;
 QT_END_NAMESPACE
 
 /** Utility functions used by the Bitcoin Qt UI.
diff --git a/src/qt/intro.cpp b/src/qt/intro.cpp
index e7e7682258..3ecd96cc42 100644
--- a/src/qt/intro.cpp
+++ b/src/qt/intro.cpp
@@ -4,17 +4,17 @@
 
 #include "intro.h"
 #include "ui_intro.h"
+
 #include "util.h"
 
+#include <boost/filesystem.hpp>
 #include <QFileDialog>
 #include <QSettings>
 #include <QMessageBox>
 
-#include <boost/filesystem.hpp>
-
 /* Minimum free space (in bytes) needed for data directory */
-static const uint64 GB_BYTES = 1000000000LL;
-static const uint64 BLOCK_CHAIN_SIZE = 10LL * GB_BYTES;
+static const uint64_t GB_BYTES = 1000000000LL;
+static const uint64_t BLOCK_CHAIN_SIZE = 10LL * GB_BYTES;
 
 /* Check free space asynchronously to prevent hanging the UI thread.
 
@@ -60,7 +60,7 @@ void FreespaceChecker::check()
     namespace fs = boost::filesystem;
     QString dataDirStr = intro->getPathToCheck();
     fs::path dataDir = fs::path(dataDirStr.toStdString());
-    uint64 freeBytesAvailable = 0;
+    uint64_t freeBytesAvailable = 0;
     int replyStatus = ST_OK;
     QString replyMessage = tr("A new data directory will be created.");
 
diff --git a/src/qt/intro.h b/src/qt/intro.h
index b25d3f1152..72693d5544 100644
--- a/src/qt/intro.h
+++ b/src/qt/intro.h
@@ -6,13 +6,14 @@
 #define INTRO_H
 
 #include <QDialog>
-#include <QThread>
 #include <QMutex>
+#include <QThread>
+
+class FreespaceChecker;
 
 namespace Ui {
 class Intro;
 }
-class FreespaceChecker;
 
 /** Introduction screen (pre-GUI startup).
   Allows the user to choose a data directory,
diff --git a/src/qt/macdockiconhandler.h b/src/qt/macdockiconhandler.h
index fba7305a60..b21a61cb07 100644
--- a/src/qt/macdockiconhandler.h
+++ b/src/qt/macdockiconhandler.h
@@ -5,12 +5,12 @@
 #ifndef MACDOCKICONHANDLER_H
 #define MACDOCKICONHANDLER_H
 
-#include <QObject>
 #include <QMainWindow>
+#include <QObject>
 
 QT_BEGIN_NAMESPACE
-class QMenu;
 class QIcon;
+class QMenu;
 class QWidget;
 QT_END_NAMESPACE
 
diff --git a/src/qt/macnotificationhandler.h b/src/qt/macnotificationhandler.h
index 257adde229..bc335edede 100644
--- a/src/qt/macnotificationhandler.h
+++ b/src/qt/macnotificationhandler.h
@@ -4,6 +4,7 @@
 
 #ifndef MACNOTIFICATIONHANDLER_H
 #define MACNOTIFICATIONHANDLER_H
+
 #include <QObject>
 
 /** Macintosh-specific notification handler (supports UserNotificationCenter and Growl).
diff --git a/src/qt/monitoreddatamapper.cpp b/src/qt/monitoreddatamapper.cpp
index 7abecbb12d..5931c53872 100644
--- a/src/qt/monitoreddatamapper.cpp
+++ b/src/qt/monitoreddatamapper.cpp
@@ -4,9 +4,9 @@
 
 #include "monitoreddatamapper.h"
 
-#include <QWidget>
 #include <QMetaObject>
 #include <QMetaProperty>
+#include <QWidget>
 
 MonitoredDataMapper::MonitoredDataMapper(QObject *parent) :
     QDataWidgetMapper(parent)
diff --git a/src/qt/notificator.cpp b/src/qt/notificator.cpp
index fcde23f7e4..c9f6834ec2 100644
--- a/src/qt/notificator.cpp
+++ b/src/qt/notificator.cpp
@@ -4,27 +4,31 @@
 
 #include "notificator.h"
 
+
 #include <QApplication>
-#include <QMetaType>
-#include <QVariant>
+#include <QByteArray>
 #include <QIcon>
+#include <QImageWriter>
+#include <QMessageBox>
+#include <QMetaType>
 #include <QStyle>
-#include <QByteArray>
 #include <QSystemTrayIcon>
-#include <QMessageBox>
 #include <QTemporaryFile>
-#include <QImageWriter>
+#include <QVariant>
+
+#ifdef Q_OS_MAC
+#include "macnotificationhandler.h"
+
+#include <ApplicationServices/ApplicationServices.h>
+#endif
 
 #ifdef USE_DBUS
-#include <QtDBus>
 #include <stdint.h>
-#endif
 
-#ifdef Q_OS_MAC
-#include <ApplicationServices/ApplicationServices.h>
-#include "macnotificationhandler.h"
+#include <QtDBus>
 #endif
 
+
 // https://wiki.ubuntu.com/NotificationDevelopmentGuidelines recommends at least 128
 const int FREEDESKTOP_NOTIFICATION_ICON_SIZE = 128;
 
diff --git a/src/qt/notificator.h b/src/qt/notificator.h
index e00d08b9cb..d6298c3c0d 100644
--- a/src/qt/notificator.h
+++ b/src/qt/notificator.h
@@ -9,11 +9,12 @@
 #include "bitcoin-config.h"
 #endif
 
-#include <QObject>
 #include <QIcon>
+#include <QObject>
 
 QT_BEGIN_NAMESPACE
 class QSystemTrayIcon;
+
 #ifdef USE_DBUS
 class QDBusInterface;
 #endif
diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index 85d49e6a20..1e91a877a9 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -11,9 +11,10 @@
 
 #include "bitcoinunits.h"
 #include "monitoreddatamapper.h"
-#include "netbase.h"
 #include "optionsmodel.h"
 
+#include "netbase.h"
+
 #include <QDir>
 #include <QIntValidator>
 #include <QLocale>
diff --git a/src/qt/optionsdialog.h b/src/qt/optionsdialog.h
index fea5c6d2fb..05234f645b 100644
--- a/src/qt/optionsdialog.h
+++ b/src/qt/optionsdialog.h
@@ -7,12 +7,13 @@
 
 #include <QDialog>
 
+class MonitoredDataMapper;
+class OptionsModel;
+class QValidatedLineEdit;
+
 namespace Ui {
 class OptionsDialog;
 }
-class OptionsModel;
-class MonitoredDataMapper;
-class QValidatedLineEdit;
 
 /** Preferences dialog. */
 class OptionsDialog : public QDialog
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index 48bf357abb..65c017f088 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -9,12 +9,12 @@
 #include "optionsmodel.h"
 
 #include "bitcoinunits.h"
+#include "guiutil.h"
+
 #include "init.h"
-#include "core.h"
-#include "wallet.h"
-#include "netbase.h"
+#include "main.h"
+#include "net.h"
 #include "walletdb.h"
-#include "guiutil.h"
 
 #include <QSettings>
 
@@ -200,7 +200,7 @@ QVariant OptionsModel::data(const QModelIndex & index, int role) const
                 return QVariant(5);
         }
         case Fee:
-            return QVariant(nTransactionFee);
+            return QVariant((qint64) nTransactionFee);
         case DisplayUnit:
             return QVariant(nDisplayUnit);
         case DisplayAddresses:
@@ -274,7 +274,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
         break;
         case Fee:
             nTransactionFee = value.toLongLong();
-            settings.setValue("nTransactionFee", nTransactionFee);
+            settings.setValue("nTransactionFee", (qint64) nTransactionFee);
             break;
         case DisplayUnit:
             nDisplayUnit = value.toInt();
@@ -299,7 +299,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
 
 qint64 OptionsModel::getTransactionFee()
 {
-    return nTransactionFee;
+    return (qint64) nTransactionFee;
 }
 
 bool OptionsModel::getProxySettings(QString& proxyIP, quint16 &proxyPort) const
diff --git a/src/qt/overviewpage.cpp b/src/qt/overviewpage.cpp
index d60ff194c1..016097c5a0 100644
--- a/src/qt/overviewpage.cpp
+++ b/src/qt/overviewpage.cpp
@@ -5,14 +5,14 @@
 #include "overviewpage.h"
 #include "ui_overviewpage.h"
 
-#include "clientmodel.h"
-#include "walletmodel.h"
 #include "bitcoinunits.h"
+#include "clientmodel.h"
+#include "guiconstants.h"
+#include "guiutil.h"
 #include "optionsmodel.h"
-#include "transactiontablemodel.h"
 #include "transactionfilterproxy.h"
-#include "guiutil.h"
-#include "guiconstants.h"
+#include "transactiontablemodel.h"
+#include "walletmodel.h"
 
 #include <QAbstractItemDelegate>
 #include <QPainter>
diff --git a/src/qt/overviewpage.h b/src/qt/overviewpage.h
index f662242836..2507a3fb31 100644
--- a/src/qt/overviewpage.h
+++ b/src/qt/overviewpage.h
@@ -7,13 +7,14 @@
 
 #include <QWidget>
 
+class ClientModel;
+class TransactionFilterProxy;
+class TxViewDelegate;
+class WalletModel;
+
 namespace Ui {
     class OverviewPage;
 }
-class ClientModel;
-class WalletModel;
-class TxViewDelegate;
-class TransactionFilterProxy;
 
 QT_BEGIN_NAMESPACE
 class QModelIndex;
diff --git a/src/qt/paymentrequestplus.cpp b/src/qt/paymentrequestplus.cpp
index c1476a4d5f..e369734a98 100644
--- a/src/qt/paymentrequestplus.cpp
+++ b/src/qt/paymentrequestplus.cpp
@@ -7,16 +7,16 @@
 // with some extra methods
 //
 
-#include <QDateTime>
-#include <QDebug>
-#include <QSslCertificate>
+#include "paymentrequestplus.h"
+
+#include <stdexcept>
 
 #include <openssl/x509.h>
 #include <openssl/x509_vfy.h>
+#include <QDateTime>
+#include <QDebug>
+#include <QSslCertificate>
 
-#include <stdexcept>
-
-#include "paymentrequestplus.h"
 
 class SSLVerifyError : public std::runtime_error
 {
diff --git a/src/qt/paymentrequestplus.h b/src/qt/paymentrequestplus.h
index 04848ec4ba..8c126b1fad 100644
--- a/src/qt/paymentrequestplus.h
+++ b/src/qt/paymentrequestplus.h
@@ -5,13 +5,14 @@
 #ifndef PAYMENTREQUESTPLUS_H
 #define PAYMENTREQUESTPLUS_H
 
+#include "paymentrequest.pb.h"
+
+#include "base58.h"
+
 #include <QByteArray>
 #include <QList>
 #include <QString>
 
-#include "base58.h"
-#include "paymentrequest.pb.h"
-
 //
 // Wraps dumb protocol buffer paymentRequest
 // with extra methods
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index 87db4bbf34..cb6291c35d 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -2,6 +2,23 @@
 // Distributed under the MIT/X11 software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "paymentserver.h"
+
+#include "bitcoinunits.h"
+#include "guiconstants.h"
+#include "guiutil.h"
+#include "optionsmodel.h"
+#include "paymentserver.h"
+#include "walletmodel.h"
+
+#include "base58.h"
+#include "ui_interface.h"
+#include "wallet.h"
+
+#include <cstdlib>
+
+#include <openssl/x509.h>
+#include <openssl/x509_vfy.h>
 #include <QApplication>
 #include <QByteArray>
 #include <QDataStream>
@@ -13,8 +30,6 @@
 #include <QList>
 #include <QLocalServer>
 #include <QLocalSocket>
-#include <QStringList>
-#include <QTextDocument>
 #include <QNetworkAccessManager>
 #include <QNetworkProxy>
 #include <QNetworkReply>
@@ -22,27 +37,16 @@
 #include <QSslCertificate>
 #include <QSslError>
 #include <QSslSocket>
+#include <QStringList>
+#include <QTextDocument>
+
 #if QT_VERSION < 0x050000
 #include <QUrl>
 #else
 #include <QUrlQuery>
 #endif
 
-#include <cstdlib>
-
-#include <openssl/x509.h>
-#include <openssl/x509_vfy.h>
-
-#include "base58.h"
-#include "bitcoinunits.h"
-#include "guiconstants.h"
-#include "guiutil.h"
-#include "optionsmodel.h"
-#include "paymentserver.h"
-#include "ui_interface.h"
-#include "util.h"
-#include "wallet.h"
-#include "walletmodel.h"
+using namespace boost;
 
 const int BITCOIN_IPC_CONNECT_TIMEOUT = 1000; // milliseconds
 const QString BITCOIN_IPC_PREFIX("bitcoin:");
@@ -357,10 +361,10 @@ void PaymentServer::handleURIOrFile(const QString& s)
 
     if (s.startsWith(BITCOIN_IPC_PREFIX, Qt::CaseInsensitive)) // bitcoin:
     {
-#if QT_VERSION >= 0x050000
-        QUrlQuery uri((QUrl(s)));
-#else
+#if QT_VERSION < 0x050000
         QUrl uri(s);
+#else
+        QUrlQuery uri((QUrl(s)));
 #endif
         if (uri.hasQueryItem("request"))
         {
diff --git a/src/qt/paymentserver.h b/src/qt/paymentserver.h
index 76cdb819d7..65bf034354 100644
--- a/src/qt/paymentserver.h
+++ b/src/qt/paymentserver.h
@@ -4,8 +4,6 @@
 
 #ifndef PAYMENTSERVER_H
 #define PAYMENTSERVER_H
-
-//
 // This class handles payment requests from clicking on
 // bitcoin: URIs
 //
@@ -32,13 +30,13 @@
 // and, if a server is running in another process,
 // sends them to the server.
 //
-#include <QObject>
-#include <QString>
 
 #include "paymentrequestplus.h"
 #include "walletmodel.h"
 
-class CWallet;
+#include <QObject>
+#include <QString>
+
 class OptionsModel;
 
 QT_BEGIN_NAMESPACE
@@ -51,6 +49,8 @@ class QSslError;
 class QUrl;
 QT_END_NAMESPACE
 
+class CWallet;
+
 class PaymentServer : public QObject
 {
     Q_OBJECT
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 05bc460ab0..64a3a68ba7 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -6,18 +6,20 @@
 #include "ui_rpcconsole.h"
 
 #include "clientmodel.h"
-#include "bitcoinrpc.h"
 #include "guiutil.h"
 
-#include <QTime>
-#include <QThread>
+#include "bitcoinrpc.h"
+
+#include "json/json_spirit_value.h"
+#include <openssl/crypto.h>
 #include <QKeyEvent>
+#include <QScrollBar>
+#include <QThread>
+#include <QTime>
+
 #if QT_VERSION < 0x050000
 #include <QUrl>
 #endif
-#include <QScrollBar>
-
-#include <openssl/crypto.h>
 
 // TODO: add a scrollback limit, as there is currently none
 // TODO: make it possible to filter out categories (esp debug messages when implemented)
diff --git a/src/qt/rpcconsole.h b/src/qt/rpcconsole.h
index 076575fa3d..1370d0b103 100644
--- a/src/qt/rpcconsole.h
+++ b/src/qt/rpcconsole.h
@@ -7,10 +7,11 @@
 
 #include <QDialog>
 
+class ClientModel;
+
 namespace Ui {
     class RPCConsole;
 }
-class ClientModel;
 
 /** Local Bitcoin RPC console. */
 class RPCConsole: public QDialog
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 2490c64835..b9c5eb08d6 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -6,16 +6,17 @@
 #include "ui_sendcoinsdialog.h"
 
 #include "bitcoinunits.h"
+#include "guiutil.h"
 #include "optionsmodel.h"
 #include "sendcoinsentry.h"
-#include "guiutil.h"
-#include "askpassphrasedialog.h"
+#include "walletmodel.h"
+
 #include "base58.h"
 #include "ui_interface.h"
 
 #include <QMessageBox>
-#include <QTextDocument>
 #include <QScrollBar>
+#include <QTextDocument>
 
 SendCoinsDialog::SendCoinsDialog(QWidget *parent) :
     QDialog(parent),
@@ -324,7 +325,7 @@ bool SendCoinsDialog::handlePaymentRequest(const SendCoinsRecipient &rv)
     if (rv.paymentRequest.IsInitialized()) {
         // Expired payment request?
         const payments::PaymentDetails& details = rv.paymentRequest.getDetails();
-        if (details.has_expires() && (int64)details.expires() < GetTime())
+        if (details.has_expires() && (int64_t)details.expires() < GetTime())
         {
             emit message(strSendCoins, tr("Payment request expired"),
                 CClientUIInterface::MSG_WARNING);
diff --git a/src/qt/sendcoinsdialog.h b/src/qt/sendcoinsdialog.h
index dcb1f2972f..9d5f34f0c2 100644
--- a/src/qt/sendcoinsdialog.h
+++ b/src/qt/sendcoinsdialog.h
@@ -8,12 +8,8 @@
 #include "walletmodel.h"
 
 #include <QDialog>
-#include <QVariant>
-#include <QPair>
 
-namespace Ui {
-    class SendCoinsDialog;
-}
+class OptionsModel;
 class SendCoinsEntry;
 class SendCoinsRecipient;
 
@@ -21,6 +17,10 @@ QT_BEGIN_NAMESPACE
 class QUrl;
 QT_END_NAMESPACE
 
+namespace Ui {
+    class SendCoinsDialog;
+}
+
 /** Dialog for sending bitcoins */
 class SendCoinsDialog : public QDialog
 {
diff --git a/src/qt/sendcoinsentry.cpp b/src/qt/sendcoinsentry.cpp
index 490b9caf5e..2d240f1fe5 100644
--- a/src/qt/sendcoinsentry.cpp
+++ b/src/qt/sendcoinsentry.cpp
@@ -5,12 +5,11 @@
 #include "sendcoinsentry.h"
 #include "ui_sendcoinsentry.h"
 
-#include "guiutil.h"
-#include "bitcoinunits.h"
 #include "addressbookpage.h"
-#include "walletmodel.h"
-#include "optionsmodel.h"
 #include "addresstablemodel.h"
+#include "guiutil.h"
+#include "optionsmodel.h"
+#include "walletmodel.h"
 
 #include <QApplication>
 #include <QClipboard>
diff --git a/src/qt/sendcoinsentry.h b/src/qt/sendcoinsentry.h
index b658f6205a..6fc36f9787 100644
--- a/src/qt/sendcoinsentry.h
+++ b/src/qt/sendcoinsentry.h
@@ -5,14 +5,15 @@
 #ifndef SENDCOINSENTRY_H
 #define SENDCOINSENTRY_H
 
+#include "walletmodel.h"
+
 #include <QStackedWidget>
 
-#include "walletmodel.h"
+class WalletModel;
 
 namespace Ui {
     class SendCoinsEntry;
 }
-class WalletModel;
 
 /**
  * A single entry in the dialog for sending bitcoins.
diff --git a/src/qt/signverifymessagedialog.cpp b/src/qt/signverifymessagedialog.cpp
index 567d46ad3a..0fa51cb92a 100644
--- a/src/qt/signverifymessagedialog.cpp
+++ b/src/qt/signverifymessagedialog.cpp
@@ -6,19 +6,18 @@
 #include "ui_signverifymessagedialog.h"
 
 #include "addressbookpage.h"
-#include "base58.h"
 #include "guiutil.h"
-#include "init.h"
-#include "main.h"
-#include "optionsmodel.h"
 #include "walletmodel.h"
-#include "wallet.h"
 
-#include <QClipboard>
+#include "base58.h"
+#include "init.h"
+#include "wallet.h"
 
 #include <string>
 #include <vector>
 
+#include <QClipboard>
+
 SignVerifyMessageDialog::SignVerifyMessageDialog(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::SignVerifyMessageDialog),
diff --git a/src/qt/signverifymessagedialog.h b/src/qt/signverifymessagedialog.h
index a91a30308c..c741450b8a 100644
--- a/src/qt/signverifymessagedialog.h
+++ b/src/qt/signverifymessagedialog.h
@@ -7,10 +7,11 @@
 
 #include <QDialog>
 
+class WalletModel;
+
 namespace Ui {
     class SignVerifyMessageDialog;
 }
-class WalletModel;
 
 class SignVerifyMessageDialog : public QDialog
 {
diff --git a/src/qt/splashscreen.cpp b/src/qt/splashscreen.cpp
index 13d99a589b..12280bb702 100644
--- a/src/qt/splashscreen.cpp
+++ b/src/qt/splashscreen.cpp
@@ -3,9 +3,10 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "splashscreen.h"
+
+#include "chainparams.h"
 #include "clientversion.h"
 #include "util.h"
-#include "chainparams.h"
 
 #include <QApplication>
 #include <QPainter>
diff --git a/src/qt/test/paymentservertests.cpp b/src/qt/test/paymentservertests.cpp
index 34079e94ff..f7d26fb919 100644
--- a/src/qt/test/paymentservertests.cpp
+++ b/src/qt/test/paymentservertests.cpp
@@ -1,17 +1,17 @@
-#include <QCoreApplication>
-#include <QDebug>
-#include <QTemporaryFile>
-#include <QVariant>
-#include <QFileOpenEvent>
-
-#include <openssl/x509.h>
-#include <openssl/x509_vfy.h>
+#include "paymentservertests.h"
 
 #include "optionsmodel.h"
-#include "paymentservertests.h"
 #include "paymentrequestdata.h"
+
 #include "util.h"
 
+#include <openssl/x509.h>
+#include <openssl/x509_vfy.h>
+#include <QCoreApplication>
+#include <QDebug>
+#include <QFileOpenEvent>
+#include <QTemporaryFile>
+#include <QVariant>
 
 
 X509 *parse_b64der_cert(const char* cert_data)
diff --git a/src/qt/test/paymentservertests.h b/src/qt/test/paymentservertests.h
index 5aa24ebaf2..0bff923ad4 100644
--- a/src/qt/test/paymentservertests.h
+++ b/src/qt/test/paymentservertests.h
@@ -1,11 +1,11 @@
 #ifndef PAYMENTSERVERTESTS_H
 #define PAYMENTSERVERTESTS_H
 
-#include <QTest>
-#include <QObject>
-
 #include "../paymentserver.h"
 
+#include <QObject>
+#include <QTest>
+
 class PaymentServerTests : public QObject
 {
     Q_OBJECT
diff --git a/src/qt/test/test_main.cpp b/src/qt/test/test_main.cpp
index dae4e60412..5c941c6387 100644
--- a/src/qt/test/test_main.cpp
+++ b/src/qt/test/test_main.cpp
@@ -1,8 +1,10 @@
-#include <QTest>
-#include <QObject>
 
-#include "uritests.h"
+
 #include "paymentservertests.h"
+#include "uritests.h"
+
+#include <QObject>
+#include <QTest>
 
 // This is all you need to run all the tests
 int main(int argc, char *argv[])
diff --git a/src/qt/test/uritests.cpp b/src/qt/test/uritests.cpp
index df4df3154b..5c0f4406a7 100644
--- a/src/qt/test/uritests.cpp
+++ b/src/qt/test/uritests.cpp
@@ -1,6 +1,7 @@
 #include "uritests.h"
-#include "../guiutil.h"
-#include "../walletmodel.h"
+
+#include "guiutil.h"
+#include "walletmodel.h"
 
 #include <QUrl>
 
diff --git a/src/qt/test/uritests.h b/src/qt/test/uritests.h
index 1237516e5f..17d4280a90 100644
--- a/src/qt/test/uritests.h
+++ b/src/qt/test/uritests.h
@@ -1,8 +1,8 @@
 #ifndef URITESTS_H
 #define URITESTS_H
 
-#include <QTest>
 #include <QObject>
+#include <QTest>
 
 class URITests : public QObject
 {
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index 3a9daf0665..8bd2bf564a 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -4,16 +4,18 @@
 
 #include "transactiondesc.h"
 
-#include "guiutil.h"
 #include "bitcoinunits.h"
-#include "main.h"
-#include "wallet.h"
-#include "db.h"
-#include "ui_interface.h"
+#include "guiutil.h"
+
 #include "base58.h"
+#include "db.h"
+#include "main.h"
 #include "paymentserver.h"
 #include "transactionrecord.h"
+#include "ui_interface.h"
+#include "wallet.h"
 
+#include <stdint.h>
 #include <string>
 
 QString TransactionDesc::FormatTxStatus(const CWalletTx& wtx)
@@ -46,10 +48,10 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, int vout, int u
         strHTML.reserve(4000);
         strHTML += "<html><font face='verdana, arial, helvetica, sans-serif'>";
 
-        int64 nTime = wtx.GetTxTime();
-        int64 nCredit = wtx.GetCredit();
-        int64 nDebit = wtx.GetDebit();
-        int64 nNet = nCredit - nDebit;
+        int64_t nTime = wtx.GetTxTime();
+        int64_t nCredit = wtx.GetCredit();
+        int64_t nDebit = wtx.GetDebit();
+        int64_t nNet = nCredit - nDebit;
 
         strHTML += "<b>" + tr("Status") + ":</b> " + FormatTxStatus(wtx);
         int nRequests = wtx.GetRequestCount();
@@ -129,7 +131,7 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, int vout, int u
             //
             // Coinbase
             //
-            int64 nUnmatured = 0;
+            int64_t nUnmatured = 0;
             BOOST_FOREACH(const CTxOut& txout, wtx.vout)
                 nUnmatured += wallet->GetCredit(txout);
             strHTML += "<b>" + tr("Credit") + ":</b> ";
@@ -186,13 +188,13 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx, int vout, int u
                 if (fAllToMe)
                 {
                     // Payment to self
-                    int64 nChange = wtx.GetChange();
-                    int64 nValue = nCredit - nChange;
+                    int64_t nChange = wtx.GetChange();
+                    int64_t nValue = nCredit - nChange;
                     strHTML += "<b>" + tr("Debit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -nValue) + "<br>";
                     strHTML += "<b>" + tr("Credit") + ":</b> " + BitcoinUnits::formatWithUnit(unit, nValue) + "<br>";
                 }
 
-                int64 nTxFee = nDebit - GetValueOut(wtx);
+                int64_t nTxFee = nDebit - GetValueOut(wtx);
                 if (nTxFee > 0)
                     strHTML += "<b>" + tr("Transaction fee") + ":</b> " + BitcoinUnits::formatWithUnit(unit, -nTxFee) + "<br>";
             }
diff --git a/src/qt/transactiondesc.h b/src/qt/transactiondesc.h
index 62f89b7285..92d093b3eb 100644
--- a/src/qt/transactiondesc.h
+++ b/src/qt/transactiondesc.h
@@ -5,8 +5,8 @@
 #ifndef TRANSACTIONDESC_H
 #define TRANSACTIONDESC_H
 
-#include <QString>
 #include <QObject>
+#include <QString>
 
 class CWallet;
 class CWalletTx;
diff --git a/src/qt/transactionfilterproxy.cpp b/src/qt/transactionfilterproxy.cpp
index cccb6176a6..a14e74a469 100644
--- a/src/qt/transactionfilterproxy.cpp
+++ b/src/qt/transactionfilterproxy.cpp
@@ -6,10 +6,10 @@
 
 #include "transactiontablemodel.h"
 
-#include <QDateTime>
-
 #include <cstdlib>
 
+#include <QDateTime>
+
 // Earliest date that can be represented (far in the past)
 const QDateTime TransactionFilterProxy::MIN_DATE = QDateTime::fromTime_t(0);
 // Last date that can be represented (far in the future)
diff --git a/src/qt/transactionfilterproxy.h b/src/qt/transactionfilterproxy.h
index 1a7612348b..6d1644d48d 100644
--- a/src/qt/transactionfilterproxy.h
+++ b/src/qt/transactionfilterproxy.h
@@ -5,8 +5,8 @@
 #ifndef TRANSACTIONFILTERPROXY_H
 #define TRANSACTIONFILTERPROXY_H
 
-#include <QSortFilterProxyModel>
 #include <QDateTime>
+#include <QSortFilterProxyModel>
 
 /** Filter the transaction list according to pre-specified rules. */
 class TransactionFilterProxy : public QSortFilterProxyModel
diff --git a/src/qt/transactionrecord.cpp b/src/qt/transactionrecord.cpp
index c488e2d21c..675daa9c9c 100644
--- a/src/qt/transactionrecord.cpp
+++ b/src/qt/transactionrecord.cpp
@@ -4,8 +4,10 @@
 
 #include "transactionrecord.h"
 
-#include "wallet.h"
 #include "base58.h"
+#include "wallet.h"
+
+#include <stdint.h>
 
 /* Return positive answer if transaction should be shown in list.
  */
@@ -28,10 +30,10 @@ bool TransactionRecord::showTransaction(const CWalletTx &wtx)
 QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *wallet, const CWalletTx &wtx)
 {
     QList<TransactionRecord> parts;
-    int64 nTime = wtx.GetTxTime();
-    int64 nCredit = wtx.GetCredit(true);
-    int64 nDebit = wtx.GetDebit();
-    int64 nNet = nCredit - nDebit;
+    int64_t nTime = wtx.GetTxTime();
+    int64_t nCredit = wtx.GetCredit(true);
+    int64_t nDebit = wtx.GetDebit();
+    int64_t nNet = nCredit - nDebit;
     uint256 hash = wtx.GetHash();
     std::map<std::string, std::string> mapValue = wtx.mapValue;
 
@@ -83,7 +85,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
         if (fAllFromMe && fAllToMe)
         {
             // Payment to self
-            int64 nChange = wtx.GetChange();
+            int64_t nChange = wtx.GetChange();
 
             parts.append(TransactionRecord(hash, nTime, TransactionRecord::SendToSelf, "",
                             -(nDebit - nChange), nCredit - nChange));
@@ -93,7 +95,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
             //
             // Debit
             //
-            int64 nTxFee = nDebit - GetValueOut(wtx);
+            int64_t nTxFee = nDebit - GetValueOut(wtx);
 
             for (unsigned int nOut = 0; nOut < wtx.vout.size(); nOut++)
             {
@@ -122,7 +124,7 @@ QList<TransactionRecord> TransactionRecord::decomposeTransaction(const CWallet *
                     sub.address = mapValue["to"];
                 }
 
-                int64 nValue = txout.nValue;
+                int64_t nValue = txout.nValue;
                 /* Add fee to first output */
                 if (nTxFee > 0)
                 {
@@ -198,7 +200,7 @@ void TransactionRecord::updateStatus(const CWalletTx &wtx)
     // For generated transactions, determine maturity
     if(type == TransactionRecord::Generated)
     {
-        int64 nCredit = wtx.GetCredit(true);
+        int64_t nCredit = wtx.GetCredit(true);
         if (nCredit == 0)
         {
             status.maturity = TransactionStatus::Immature;
diff --git a/src/qt/transactionrecord.h b/src/qt/transactionrecord.h
index 6f68f93fa5..8a7c9044e3 100644
--- a/src/qt/transactionrecord.h
+++ b/src/qt/transactionrecord.h
@@ -51,8 +51,8 @@ public:
     /** @name Reported status
        @{*/
     Status status;
-    int64 depth;
-    int64 open_for; /**< Timestamp if status==OpenUntilDate, otherwise number
+    qint64 depth;
+    qint64 open_for; /**< Timestamp if status==OpenUntilDate, otherwise number
                       of additional blocks that need to be mined before
                       finalization */
     /**@}*/
@@ -86,15 +86,15 @@ public:
     {
     }
 
-    TransactionRecord(uint256 hash, int64 time):
+    TransactionRecord(uint256 hash, qint64 time):
             hash(hash), time(time), type(Other), address(""), debit(0),
             credit(0), idx(0)
     {
     }
 
-    TransactionRecord(uint256 hash, int64 time,
+    TransactionRecord(uint256 hash, qint64 time,
                 Type type, const std::string &address,
-                int64 debit, int64 credit):
+                qint64 debit, qint64 credit):
             hash(hash), time(time), type(type), address(address), debit(debit), credit(credit),
             idx(0)
     {
@@ -108,11 +108,11 @@ public:
     /** @name Immutable transaction attributes
       @{*/
     uint256 hash;
-    int64 time;
+    qint64 time;
     Type type;
     std::string address;
-    int64 debit;
-    int64 credit;
+    qint64 debit;
+    qint64 credit;
     /**@}*/
 
     /** Subtransaction index, for sort key */
diff --git a/src/qt/transactiontablemodel.cpp b/src/qt/transactiontablemodel.cpp
index a33f2b5a71..3777e82f31 100644
--- a/src/qt/transactiontablemodel.cpp
+++ b/src/qt/transactiontablemodel.cpp
@@ -4,24 +4,27 @@
 
 #include "transactiontablemodel.h"
 
-#include "guiutil.h"
-#include "transactionrecord.h"
+#include "addresstablemodel.h"
+#include "bitcoinunits.h"
 #include "guiconstants.h"
+#include "guiutil.h"
+#include "optionsmodel.h"
 #include "transactiondesc.h"
+#include "transactionrecord.h"
 #include "walletmodel.h"
-#include "optionsmodel.h"
-#include "addresstablemodel.h"
-#include "bitcoinunits.h"
 
+#include "main.h"
+#include "sync.h"
+#include "uint256.h"
+#include "util.h"
 #include "wallet.h"
-#include "ui_interface.h"
 
-#include <QList>
 #include <QColor>
-#include <QTimer>
-#include <QIcon>
 #include <QDateTime>
 #include <QDebug>
+#include <QIcon>
+#include <QList>
+#include <QTimer>
 
 // Amount column is right-aligned it contains numbers
 static int column_alignments[] = {
diff --git a/src/qt/transactiontablemodel.h b/src/qt/transactiontablemodel.h
index d1b4f706d8..c23c606c31 100644
--- a/src/qt/transactiontablemodel.h
+++ b/src/qt/transactiontablemodel.h
@@ -8,11 +8,12 @@
 #include <QAbstractTableModel>
 #include <QStringList>
 
-class CWallet;
-class TransactionTablePriv;
 class TransactionRecord;
+class TransactionTablePriv;
 class WalletModel;
 
+class CWallet;
+
 /** UI model for the transaction table of a wallet.
  */
 class TransactionTableModel : public QAbstractTableModel
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
index 46245f00ad..d3e2bdf400 100644
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -4,31 +4,32 @@
 
 #include "transactionview.h"
 
-#include "transactionfilterproxy.h"
-#include "transactionrecord.h"
-#include "walletmodel.h"
 #include "addresstablemodel.h"
-#include "transactiontablemodel.h"
 #include "bitcoinunits.h"
 #include "csvmodelwriter.h"
-#include "transactiondescdialog.h"
 #include "editaddressdialog.h"
-#include "optionsmodel.h"
 #include "guiutil.h"
+#include "optionsmodel.h"
+#include "transactiondescdialog.h"
+#include "transactionfilterproxy.h"
+#include "transactionrecord.h"
+#include "transactiontablemodel.h"
+#include "walletmodel.h"
+
 #include "ui_interface.h"
 
-#include <QScrollBar>
 #include <QComboBox>
+#include <QDateTimeEdit>
 #include <QDoubleValidator>
 #include <QHBoxLayout>
-#include <QVBoxLayout>
-#include <QLineEdit>
-#include <QTableView>
 #include <QHeaderView>
-#include <QPoint>
-#include <QMenu>
 #include <QLabel>
-#include <QDateTimeEdit>
+#include <QLineEdit>
+#include <QMenu>
+#include <QPoint>
+#include <QScrollBar>
+#include <QTableView>
+#include <QVBoxLayout>
 
 TransactionView::TransactionView(QWidget *parent) :
     QWidget(parent), model(0), transactionProxyModel(0),
diff --git a/src/qt/transactionview.h b/src/qt/transactionview.h
index 2690cbb8ad..18f2b9bfc9 100644
--- a/src/qt/transactionview.h
+++ b/src/qt/transactionview.h
@@ -7,17 +7,17 @@
 
 #include <QWidget>
 
-class WalletModel;
 class TransactionFilterProxy;
+class WalletModel;
 
 QT_BEGIN_NAMESPACE
-class QTableView;
 class QComboBox;
+class QDateTimeEdit;
+class QFrame;
 class QLineEdit;
-class QModelIndex;
 class QMenu;
-class QFrame;
-class QDateTimeEdit;
+class QModelIndex;
+class QTableView;
 QT_END_NAMESPACE
 
 /** Widget showing the transaction list for a wallet, including a filter row.
diff --git a/src/qt/walletframe.cpp b/src/qt/walletframe.cpp
index bacc70070b..04eea59169 100644
--- a/src/qt/walletframe.cpp
+++ b/src/qt/walletframe.cpp
@@ -3,12 +3,13 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletframe.h"
-#include "walletview.h"
+
 #include "bitcoingui.h"
+#include "walletview.h"
+
+#include <cstdio>
 
 #include <QHBoxLayout>
-#include <QMessageBox>
-#include <QStackedWidget>
 
 WalletFrame::WalletFrame(BitcoinGUI *_gui) :
     QFrame(_gui),
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 1c24ffb20b..b1d770e1a7 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -3,18 +3,25 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletmodel.h"
-#include "guiconstants.h"
-#include "optionsmodel.h"
+
 #include "addresstablemodel.h"
+#include "guiconstants.h"
 #include "transactiontablemodel.h"
 
+#include "base58.h"
+#include "db.h"
+#include "keystore.h"
+#include "main.h"
+#include "sync.h"
 #include "ui_interface.h"
+#include "wallet.h"
 #include "walletdb.h" // for BackupWallet
-#include "base58.h"
 
+#include <stdint.h>
+
+#include <QDebug>
 #include <QSet>
 #include <QTimer>
-#include <QDebug>
 
 WalletModel::WalletModel(CWallet *wallet, OptionsModel *optionsModel, QObject *parent) :
     QObject(parent), wallet(wallet), optionsModel(optionsModel), addressTableModel(0),
@@ -133,7 +140,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
 {
     qint64 total = 0;
     QList<SendCoinsRecipient> recipients = transaction.getRecipients();
-    std::vector<std::pair<CScript, int64> > vecSend;
+    std::vector<std::pair<CScript, int64_t> > vecSend;
 
     if(recipients.empty())
     {
@@ -148,7 +155,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
     {
         if (rcp.paymentRequest.IsInitialized())
         {   // PaymentRequest...
-            int64 subtotal = 0;
+            int64_t subtotal = 0;
             const payments::PaymentDetails& details = rcp.paymentRequest.getDetails();
             for (int i = 0; i < details.outputs_size(); i++)
             {
@@ -157,7 +164,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
                 subtotal += out.amount();
                 const unsigned char* scriptStr = (const unsigned char*)out.script().data();
                 CScript scriptPubKey(scriptStr, scriptStr+out.script().size());
-                vecSend.push_back(std::pair<CScript, int64>(scriptPubKey, out.amount()));
+                vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, out.amount()));
             }
             if (subtotal <= 0)
             {
@@ -180,7 +187,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
 
             CScript scriptPubKey;
             scriptPubKey.SetDestination(CBitcoinAddress(rcp.address.toStdString()).Get());
-            vecSend.push_back(std::pair<CScript, int64>(scriptPubKey, rcp.amount));
+            vecSend.push_back(std::pair<CScript, int64_t>(scriptPubKey, rcp.amount));
 
             total += rcp.amount;
         }
@@ -205,7 +212,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
         LOCK2(cs_main, wallet->cs_wallet);
 
         transaction.newPossibleKeyChange(wallet);
-        int64 nFeeRequired = 0;
+        int64_t nFeeRequired = 0;
         std::string strFailReason;
 
         CWalletTx *newTx = transaction.getTransaction();
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index efa6ccc668..f39e9dfca0 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -5,19 +5,20 @@
 #ifndef WALLETMODEL_H
 #define WALLETMODEL_H
 
-#include <QObject>
+#include "paymentrequestplus.h"
+#include "walletmodeltransaction.h"
 
 #include "allocators.h" /* for SecureString */
-#include "wallet.h"
-#include "walletmodeltransaction.h"
-#include "paymentrequestplus.h"
 
-class OptionsModel;
+#include <QObject>
+
 class AddressTableModel;
+class OptionsModel;
 class TransactionTableModel;
-class CWallet;
 class WalletModelTransaction;
 
+class CWallet;
+
 QT_BEGIN_NAMESPACE
 class QTimer;
 QT_END_NAMESPACE
diff --git a/src/qt/walletmodeltransaction.cpp b/src/qt/walletmodeltransaction.cpp
index 96c2794dff..943f13e208 100644
--- a/src/qt/walletmodeltransaction.cpp
+++ b/src/qt/walletmodeltransaction.cpp
@@ -4,6 +4,8 @@
 
 #include "walletmodeltransaction.h"
 
+#include "wallet.h"
+
 WalletModelTransaction::WalletModelTransaction(const QList<SendCoinsRecipient> &recipients) :
     recipients(recipients),
     walletTransaction(0),
diff --git a/src/qt/walletmodeltransaction.h b/src/qt/walletmodeltransaction.h
index efc4814430..a948808a75 100644
--- a/src/qt/walletmodeltransaction.h
+++ b/src/qt/walletmodeltransaction.h
@@ -7,8 +7,14 @@
 
 #include "walletmodel.h"
 
+#include <QObject>
+
 class SendCoinsRecipient;
 
+class CReserveKey;
+class CWallet;
+class CWalletTx;
+
 /** Data model for a walletmodel transaction. */
 class WalletModelTransaction
 {
diff --git a/src/qt/walletview.cpp b/src/qt/walletview.cpp
index b026ca5446..2485688531 100644
--- a/src/qt/walletview.cpp
+++ b/src/qt/walletview.cpp
@@ -3,25 +3,29 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletview.h"
-#include "bitcoingui.h"
-#include "transactiontablemodel.h"
+
 #include "addressbookpage.h"
-#include "sendcoinsdialog.h"
-#include "receivecoinsdialog.h"
-#include "signverifymessagedialog.h"
+#include "askpassphrasedialog.h"
+#include "bitcoingui.h"
 #include "clientmodel.h"
-#include "walletmodel.h"
+#include "guiutil.h"
 #include "optionsmodel.h"
-#include "transactionview.h"
 #include "overviewpage.h"
-#include "askpassphrasedialog.h"
+#include "receivecoinsdialog.h"
+#include "sendcoinsdialog.h"
+#include "signverifymessagedialog.h"
+#include "transactiontablemodel.h"
+#include "transactionview.h"
+#include "walletmodel.h"
+
 #include "ui_interface.h"
-#include "guiutil.h"
 
-#include <QHBoxLayout>
-#include <QVBoxLayout>
 #include <QAction>
+#include <QActionGroup>
+#include <QFileDialog>
+#include <QHBoxLayout>
 #include <QPushButton>
+#include <QVBoxLayout>
 
 WalletView::WalletView(QWidget *parent):
     QStackedWidget(parent),
diff --git a/src/qt/walletview.h b/src/qt/walletview.h
index 19be8f4d87..d951691621 100644
--- a/src/qt/walletview.h
+++ b/src/qt/walletview.h
@@ -9,17 +9,14 @@
 
 class BitcoinGUI;
 class ClientModel;
-class WalletModel;
-class TransactionView;
 class OverviewPage;
-class SendCoinsDialog;
 class ReceiveCoinsDialog;
+class SendCoinsDialog;
 class SendCoinsRecipient;
-class SignVerifyMessageDialog;
-class RPCConsole;
+class TransactionView;
+class WalletModel;
 
 QT_BEGIN_NAMESPACE
-class QLabel;
 class QModelIndex;
 QT_END_NAMESPACE