The hash implementation casts the input pointer to uint64_t* and directly reads
from this, which may cause unaligned accesses. Use memcpy() instead so this code
will not crash with SIGBUS on sparc.
https://bugs.gentoo.org/show_bug.cgi?id=636400
(cherry picked from commit 1e2ec8a996)
Co-authored-by: Rolf Eike Beer <eike@sf-mail.de>
* bpo-30923: Disable warning that has been part of -Wextra since gcc-7.0. (#3142)
(cherry picked from commit d73a960c57)
* bpo-30923: Silence fall-through warnings included in -Wextra since gcc-7.0. (#3157)
(cherry picked from commit f432a3234f)
* bpo-31275: Small refactoring to silence a fall-through warning. (#3206)
(cherry picked from commit 138753c1b9)
