Source: bitcoin Followup-For: Bug #812275 > This package fails to build with GCC 6.
FWIW, this bug seems to be fixed upstream somewhere between 0.12.1 and 0.13.0rc2. I ran a git bisect, and the commit that fixes the issue seems to be: https://github.com/bitcoin/bitcoin/commit/89f71c68c0fecf63059f6055ebdd25f1eba4c982 Cheers, aj