Arducopter Waf Build Repeatability

[OlivierB (Olivier Brousse)]

Hi John,

Unfortunately no. This post discusses what’s going on:

Arducopter firmware.px4 differs on each make!

One thing I noticed is that the .px4 firmware generated when you execute make px4-v2 is not the same ( in binary comparison) even when using the same source code! Followed instructions in this link to make the firmware. When I follow the below sequence Do ‘make px4-clean’ and then ‘make px4-v2’, firmware generated ( lets call this firmware1) I do a ‘make px4-v2’ immediately after step1 without any changes, firmware generated( lets call this firmware2) I do a ‘make px4-v2’ immediately after …