g++ -Wall -std=c++20 -mpopcnt -pthread -lstdc++ -lm -mavx2 -O3 -march=native -flto=auto -DEVALFILE=\"/root/Datagen/OpenBench/Client/Networks/D513F3B7\" *.cpp fathom/tbprobe.cpp -DNDEBUG -D_BTYPE=0 -DSYZYGY_SUPPORT=TRUE -DUSE_AVX2=1 -o Igel-BCA53DD9-D513F3B7 g++: error: unrecognized command line option ‘-std=c++20’; did you mean ‘-std=c++2a’? make: *** [makefile:34: basic] Error 1