clang++ -O3 -march=native -ffast-math -funroll-loops -flto -fuse-ld=lld -std=c++20 -static -DNDEBUG -DEVALFILE=\"/home/jonathanhallstrom/dev/python/MattBench/Client/Networks/35B74CC5\" ./src/accumulator.cpp ./src/board.cpp ./src/datagen.cpp ./src/move.cpp ./src/movegen.cpp ./src/nnue.cpp ./src/Prelude.cpp ./src/search.cpp ./src/searcher.cpp -o Prelude-473113B9-35B74CC5
./src/datagen.cpp:124:27: error: no member named 'format' in namespace 'std'
  124 |     return "data-" + std::format("{:04}-{:02}-{:02}", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday) + "-" + randomStr + ".preludedata";
      |                      ~~~~~^
1 error generated.
./src/nnue.cpp:9:10: fatal error: 'format' file not found
    9 | #include <format>
      |          ^~~~~~~~
1 error generated.
make: *** [makefile:29: Prelude-473113B9-35B74CC5] Error 1