Snippets for fluidsynth 2.5.6 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/8r5l8c92j73vqn1vczddznrj1bn5lnpp-fluidsynth-2.5.6.drv.

• /nix/var/nix/builds/nix-1984-3334003706/source/src/drivers/fluid_jack.c:604:17: warning: variable 'connected' set but not used [-Wunused-but-set-variable]
    604 |             int connected = 0;
        |                 ^
  

• /nix/var/nix/builds/nix-1984-3334003706/source/src/drivers/fluid_coreaudio.c:46:19: warning: unused variable 'PERF_MODE' [-Wunused-const-variable]
     46 | static const char PERF_MODE[] = "audio.coreaudio.performance-mode";
        |                   ^~~~~~~~~