Thanks for the pointers. I’m re-creating the maps and will let you know the results. I am creating each map from it’s own directory into which I split the map data for the respective countries. I’ve invoked mkgmap with -c template.args as the last parameter and the map ‘numbers’ as 1033 for France, 1032 for Belgium, 1031 for Netherlands etc. These are less than #ffff and are not already in use either.
I’ll post my results later. Is there a specification for all these parameters? I’m wondering if the text labels I defined might also have overrun the reserved space and caused corruption? I’ve not looked at the source code for mkgmap but not validating input can lead to all sorts of problems (buffer/stack overflows etc.)
