gcc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations endian/htobe64.c -o endian/htobe64 -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lxnet -lsocket -latomic
endian/htobe64.c:1:10: fatal error: endian.h: No such file or directory
    1 | #include <endian.h>
      |          ^~~~~~~~~~
compilation terminated.