hm, didnt find a way to do it in the top makefile, but then again i am no makefile artist.
doing it in the makefile would also only benefit the autobuild - there would be an additional download for each "duplicate" firmware.
but for example the chdk shell will still only showcase ONE firmware, and not the "duplicate" ones. so people with these firmwares wont have a clue how to compile for their cams. of course they can read the wiki, but thats exactly what i want to avoid here - keeping things simple is my motto.
if i renamed the sub dirs to 100b100c instead 100b_100c would at least keep hackis autobuild layout clean. this is ugly though. or maybe 100bc? hm.
thanks for all your efforts put into this already - this is a really small issue, but i really wanna do it