"if you've set the correct CFLAGS..." <- > <@9names:matrix.org> if you've set the correct CFLAGS and are using gcc to link, it should pass the correct linker settings for you. > not sure what your current CFLAGS are but > "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard" should be sufficient to get what you need IIRC do you have an example ? this is my config