Snippets for multimarkdown 6.8.0 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/izr19hmhwacqrf1wzvsw9xy4lr3fdwi4-multimarkdown-6.8.0.drv.

• /nix/var/nix/builds/nix-81011-3520808852/source/src/miniz.c:3191:9: warning: Using fopen, ftello, fseeko, stat() etc. path for file I/O - this path may not support large files. [-W#pragma-messages]
   3191 | #pragma message("Using fopen, ftello, fseeko, stat() etc. path for file I/O - this path may not support large files.")
        |         ^
  

• /nix/var/nix/builds/nix-81011-3520808852/source/src/rng.c:150:1: warning: 'main' should not be declared static [-Wmain]
    150 | static int main() {
        | ^~~~~~
  

• /nix/var/nix/builds/nix-81011-3520808852/source/src/argtable3.c:3864:107: warning: unknown attribute 'optimize' ignored [-Wunknown-attributes]
   3864 | TREX_API TRex * trex_compile(const TRexChar * pattern, const TRexChar ** error, int flags) __attribute__((optimize(0)));
        |                                                                                                           ^~~~~~~~~~~