| \chapter{Optional Operating System Services} | |
| \label{someos} | |
| The modules described in this chapter provide interfaces to operating | |
| system features that are available on selected operating systems only. | |
| The interfaces are generally modeled after the \UNIX{} or \C{} | |
| interfaces but they are available on some other systems as well | |
| (e.g. Windows or NT). Here's an overview: | |
| \localmoduletable |