bitcoin/bitcoin — pull request #5296 by jonasschnelli (2014-11-17 14:55:48+00:00)
Title: [Qt, OSX] QProgressBar CPU-Issue workaround

fixes #5295

I know it's a bit of a hack. But it saves a lot of CPU ticks on OSX.
You might decide to take this in because it does the job and the QTBUG-15631 seams to be open and untouched since 2010.