-extern int util_create_path(struct udev *udev, const char *path);
-extern int util_delete_path(struct udev *udev, const char *path);
-extern int util_unlink_secure(struct udev *udev, const char *filename);
-extern uid_t util_lookup_user(struct udev *udev, const char *user);
-extern gid_t util_lookup_group(struct udev *udev, const char *group);
-extern int util_run_program(struct udev *udev, const char *command, char **envp,
- char *result, size_t ressize, size_t *reslen);
-extern int util_resolve_subsys_kernel(struct udev *udev, const char *string,
+int util_create_path(struct udev *udev, const char *path);
+int util_delete_path(struct udev *udev, const char *path);
+int util_unlink_secure(struct udev *udev, const char *filename);
+uid_t util_lookup_user(struct udev *udev, const char *user);
+gid_t util_lookup_group(struct udev *udev, const char *group);
+int util_run_program(struct udev *udev, const char *command, char **envp,
+ char *result, size_t ressize, size_t *reslen);
+int util_resolve_subsys_kernel(struct udev *udev, const char *string,