clang -O2  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations spawn/posix_spawn_file_actions_addchdir.c -o spawn/posix_spawn_file_actions_addchdir -D_POSIX_C_SOURCE=202405L  -lm  -lintl
spawn/posix_spawn_file_actions_addchdir.c:6:74: error: use of undeclared identifier 'posix_spawn_file_actions_addchdir'; did you mean 'posix_spawn_file_actions_addclose'?
int (*foo)(posix_spawn_file_actions_t *restrict, const char *restrict) = posix_spawn_file_actions_addchdir;
                                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                                         posix_spawn_file_actions_addclose
/usr/include/spawn.h:57:5: note: 'posix_spawn_file_actions_addclose' declared here
int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *, int);
    ^
spawn/posix_spawn_file_actions_addchdir.c:6:7: error: incompatible pointer types initializing 'int (*)(posix_spawn_file_actions_t *restrict, const char *restrict)' with an expression of type 'int (posix_spawn_file_actions_t *, int)' [-Werror,-Wincompatible-pointer-types]
int (*foo)(posix_spawn_file_actions_t *restrict, const char *restrict) = posix_spawn_file_actions_addchdir;
      ^                                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.