cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations dirent/seekdir.c -o dirent/seekdir -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
dirent/seekdir.c:11:28: error: ‘seekdir’ undeclared here (not in a function)
   11 | void (*foo)(DIR *, long) = seekdir;
      |                            ^~~~~~~