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.

progressBarLabel->setVisible(true);
        progressBar->setFormat(tr("%1 behind").arg(timeBehindText));
        progressBar->setMaximum(1000000000);
        progressBar->setValue(nVerificationProgress * 1000000000.0 + 0.5);
        progressBar->setVisible(true);
        tooltip = tr("Catching up...") + QString("<br>") + tooltip;
        if(count != prevBlocks)
        {
            labelBlocksIcon->setPixmap(platformStyle->SingleColorIcon(QString(
                ":/movies/spinner-%1").arg(spinnerFrame, 3, 10, QChar('0')))
                .pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
            spinnerFrame = (spinnerFrame + 1) % SPINNER_FRAMES;
        }
        prevBlocks = count;
#ifdef ENABLE_WALLET
        if(walletFrame)
            walletFrame->showOutOfSyncWarning(true);
#endif 
        tooltip += QString("<br>");
        tooltip += tr("Last received block was generated %1 ago.").arg(timeBehindText);
        tooltip += QString("<br>");
        tooltip += tr("Transactions after this will not yet be visible.");
    }
    
    tooltip = QString("<nobr>") + tooltip + QString("</nobr>");
    labelBlocksIcon->setToolTip(tooltip);
    progressBarLabel->setToolTip(tooltip);
    progressBar->setToolTip(tooltip);
}
void BitcoinGUI::message(const QString &title, const QString &message, unsigned int style, bool *ret)