Hi, When I try to use exceptions with avr-g++ (stupid idea?), I got the following message: section .bss [00001da0 -> 00002266] overlaps section .gcc_except_table [00001da0 -> 00001db4] After this, there are some unknown symbols (e.g. __cxa_begin_catch), but they can be due to the previous problem (the section is not linked in). Any idea? Regards K. Gy.