cc -O2 -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations unistd/SEEK_DATA.c -o unistd/SEEK_DATA -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lintl -lcrypt
unistd/SEEK_DATA.c:3:2: error: #error "SEEK_DATA is not defined"
    3 | #error "SEEK_DATA is not defined"
      |  ^~~~~