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.

switch (blockSource) {
        case BLOCK_SOURCE_NETWORK:
            progressBarLabel->setText(tr("Synchronizing with network..."));
            break;
        case BLOCK_SOURCE_DISK:
            progressBarLabel->setText(tr("Importing blocks from disk..."));
            break;
        case BLOCK_SOURCE_REINDEX:
            progressBarLabel->setText(tr("Reindexing blocks on disk..."));
            break;
        case BLOCK_SOURCE_NONE:
            
            progressBarLabel->setText(tr("No block source available..."));
            break;
    }
    QString tooltip;
    QDateTime currentDate = QDateTime::currentDateTime();
    qint64 secs = blockDate.secsTo(currentDate);
    tooltip = tr("Processed %n block(s) of transaction history.", "", count);
    
    if(secs < 90*60)
    {
        tooltip = tr("Up to date") + QString(".<br>") + tooltip;
        labelBlocksIcon->setPixmap(platformStyle->SingleColorIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
#ifdef ENABLE_WALLET
        if(walletFrame)
            walletFrame->showOutOfSyncWarning(false);