fix compilation issue 'array subscript 0 is outside array bounds' for arm-none-eabi-gcc version 13

[SaidAlvarado]

Hello! :D
I got the following error when building with arm-none-eabi-gcc version 13.2.0, in Linux 5.15.146-1-MANJARO:

lib/sdk11/components/libraries/bootloader_dfu/bootloader_settings.c: In function 'bootloader_mbr_addrs_populate':
lib/sdk11/components/libraries/bootloader_dfu/bootloader_settings.c:45:7: error: array subscript 0 is outside array bounds of 'const uint32_t[0]' {aka 'const long unsigned int[]'} [-Werror=array-bounds=]
   45 |   if (*(const uint32_t *)MBR_BOOTLOADER_ADDR == 0xFFFFFFFF)
compilation terminated due to -Wfatal-errors.
cc1: all warnings being treated as errors
make: *** [Makefile:417: _build/build-sparkfun_nrf52840_micromod/bootloader_settings.o] Error 1

It seems like this is an issue with newer GCC versions. Based on the discussion in #273: This was already fixed for GCC version 12, but the problem reappeared for GCC version 13.

I tested the same fix proposed in #273 (add the compile flag --param=min-pagesize=0). It solved the issue, and I could successfully compile the bootloader firmware.

This PR is just an extension of the #273 fix. The conditional in the MakeFile now checks for both gcc versions 12 and 13 and applies the relevant compile flag. I tested the code against arm-none-eabi-gcc versions:

• 13.2.0
• 12.2.Rel1

It worked with both.

Thank you for your time!

[hathach]

look good, thank you for the fix