Hi Mike, please have a look at the check-roundabouts and --check-roundabout-flares code. I think we missed the fact that --check-roundabouts may change the direction of roundabouts (in StyledConverter). So, I think we need a new option like report-roundabout-issues=[NUM] and another one for the reversing? Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Mike Baggaley <mike@tvage.co.uk> Gesendet: Montag, 12. April 2021 17:02 An: 'Development list for mkgmap' Betreff: [mkgmap-dev] logging Hi Gerd, In the attached patch there are a few improvements to messages as well as some more use of logging: In ImgFS, the message from the FileNotWritableException was displaying the filename twice, so I have fixed that. In TdbBuilder, I have removed an unnecessary log.error In StyledConverter, I have added the synchronisation code for the removal of duplicate messages In O5mBinHandler, I have changed a thrown exception from IOException to FormatException so that it gets handled by its callers Cheers, Mike