cc -pipe -O   -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations spawn/posix_spawn_file_actions_addfchdir.c -o spawn/posix_spawn_file_actions_addfchdir -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lrt -lcrypt
spawn/posix_spawn_file_actions_addfchdir.c:6:49: error: 'posix_spawn_file_actions_addfchdir' undeclared here (not in a function); did you mean 'posix_spawn_file_actions_addclose'?
 int (*foo)(posix_spawn_file_actions_t *, int) = posix_spawn_file_actions_addfchdir;
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                 posix_spawn_file_actions_addclose