MacPorts-installed Bitcoin Core's version v0.12.1.0g9779e1e crashes on OSX when trying to open the debug window while the app is verifying the blocks at startup.

#ifndef BITCOIN_QT_BITCOINGUI_H
#define BITCOIN_QT_BITCOINGUI_H
#if defined(HAVE_CONFIG_H)
#include "config/bitcoin-config.h"
#endif
#include "amount.h"
#include <QLabel>
#include <QMainWindow>
#include <QMap>
#include <QMenu>
#include <QPoint>
#include <QSystemTrayIcon>
class ClientModel;
class NetworkStyle;
class Notificator;
class OptionsModel;
class PlatformStyle;
class RPCConsole;
class SendCoinsRecipient;
class UnitDisplayStatusBarControl;
class WalletFrame;
class WalletModel;
class HelpMessageDialog;
class CWallet;
QT_BEGIN_NAMESPACE
class QAction;
class QProgressBar;
class QProgressDialog;
QT_END_NAMESPACE