arm-none-eabi-g++ -o .pio/build/stm32f407vg/firmware.elf -T stm32f405x6.ld -Wl,--gc-sections,--relax -mthumb -nostartfiles -nostdlib -mcpu=cortex-m4 .pio/build/stm32f407vg/src/main.o .pio/build/stm32f407vg/src/target/STM32F407VG/InterruptVectorTable.o .pio/build/stm32f407vg/src/target/STM32F407VG/startup_stm32f4xx.o .pio/build/stm32f407vg/src/target/STM32F407VG/system_stm32f4xx.o -L/Users/john/.platformio/platforms/ststm32/ldscripts -L.pio/build/stm32f407vg -Wl,--start-group -lc -lgcc -lm -lstdc++ -lnosys -Wl,--end-group
.pio/build/stm32f407vg/src/main.o: In function `main':
/Users/john/Documents/PlatformIO/Projects/Testing_MCB1768/include/hal/InterruptVectorTable.hpp:133: undefined reference to `__dso_handle'
/Users/john/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/libc.a(lib_a-fini.o): In function `__libc_fini_array':
fini.c:(.text.__libc_fini_array+0x26): undefined reference to `_fini'
/Users/john/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld: .pio/build/stm32f407vg/firmware.elf: hidden symbol `__dso_handle' isn't defined
/Users/john/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
*** [.pio/build/stm32f407vg/firmware.elf] Error 1