fix arith in pack_index / unbreak on 32 bit arches

Thread:: fix arith in pack_index / unbreak on 32 bit arches

2024-08-10 13:40 Omar Polo:
fix arith in pack_index / unbreak on 32 bit arches
- 2024-08-10 14:32 Mark Jamsek:
  fix arith in pack_index / unbreak on 32 bit arches