building the same code but not produce the same FW

[elawady]

I started to build my own build, and follow the instructions in https://github.com/pycom/pycom-micropython-sigfox
but the final result not producing the same elf file
I am trying to build the board Lopy4 on version v1.20.2.rc11 and the generated file size is 15.8MB, not 15.9MB like on releases here
https://github.com/pycom/pycom-micropython-sigfox/releases/tag/v1.20.2.rc11_pygate
and of course not the same signature

so, I am asking here to someone explain to me why?

[Gijs]

I believe, but Im not sure, that the difference is related to the place the firmware is built from.

When checking backtraces using one of the pycom.elf files, it will tell me the file locations of the file when it was compiled (complete path), so it somehow has to be contained in the .elf file

Gijs