Snippets for libgcrypt 1.12.2 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/b8jn9b30cn4qw3lrpnmnhfcn71m4pmrr-libgcrypt-1.12.2.drv.

• mceliece6688128f.c:767:19: warning: unused function 'vec_testz' [-Wunused-function]
    767 | static inline int vec_testz(vec a)
        |                   ^~~~~~~~~
  

• benchmark.c:724:14: warning: default initialization of an object of type 'const char[4]' leaves the object uninitialized [-Wdefault-const-init-var-unsafe]
    724 |   const char _L[4];
        |              ^