int parse_env_file(const char *fname, const char *separator, ...) _sentinel_;
int load_env_file(FILE *f, const char *fname, const char *separator, char ***l);
-int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l);
+// UNNEEDED int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l);
int write_env_file(const char *fname, char **l);
-int executable_is_script(const char *path, char **interpreter);
+// UNNEEDED int executable_is_script(const char *path, char **interpreter);
int get_status_field(const char *filename, const char *pattern, char **field);