-/// FIXME: same here
-void abort();
-/// create the given directory with the given mode
-int mkdir(string const & pathname, unsigned long int mode);
-/// put a C string into the environment
-int putenv(char const * str);
-/// unlink the given file
-int unlink(string const & file);
-/// remove the given directory
-int rmdir(string const & file);
-/// convert the given string to an integer
-int atoi(string const & nstr);
-/// (securely) create a temporary file in the given dir with the given prefix
-string const tempName(string const & dir = string(),
- string const & mask = string());
-