https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64953
--- Comment #6 from manuel.reimer at gmx dot de --- The exact command line is: arm-none-eabi-gcc -c -mthumb -mcpu=cortex-m3 -mthumb-interwork -I. -Os -ffunction-sections -fdata-sections -Wall -Wimplicit -Wcast-align -Wpointer-arith -Wswitch -Wredundant-decls -Wreturn-type -Wshadow -Wunused -Wa,-adhlns=build/usb.lst -I./stm32_lib -I./usb_lib -DMAPLE --save-temps -MD -MP -MF .dep/usb.o.d usb.c -o build/usb.o
