[mkgmap-dev] Echange .typ-file in gmapsupp.img on Mac OS x 11 or newer?

Hi - is there any tool available to change the .typ-file in a gmapsupp.img on the Mac OS X Big Sur or newer? As gmt_osx is not gonna be updated to x64 - I wonder if there is an alternative. Or maybe could this function be added to mkgmap? I would imagine a call java mkgmap.jar --change-typ gmapsupp.img newtyp.typ (so remove all existing .typfiles in the gmapsupp.img and replace them with newtyp.typ - for gmapsupp.img consisting of several maps this would be more complicated - I do not feel that is needed). Plus maybe the option to join several gmapsupp.img files into a new bigger one (only important for very old devices). -- Felix Hartman - Openmtbmap.org & VeloMap.org