Noob question: mv is hard to debug with GDB

[Stéphane Archer]

Dear Coreutils community,

I have a hard debugging the mv binary using GDB.
I modify the Makefile at the root with the following flag hopping it help:
CFLAGS = -g -ggdb -Og -O0
But many of the variables have been optimized out and it's a bit hard to
step into the code.
I think it's probably because I'm stepping in gnulib witch is maybe not
using the same CFLAGS.

Is there anything I should do to make my life easier?

-- 
Best Regards,

Stephane Archer