I am compiling this code in Arduino IDE (Due) and the compiler does not like a variable to be defined / initialized in plain "for" loop bunt ONLY in this source code. Something about standard C99.
So why is it failing ONLY in this code?
What do I change to make sure this C99 standard applies to it, when it works anywhere else?
I do not have access to compiler command  line  - using Widows to add -std=c99, but if it works everywhere else why would I have to add this option in first place.