/* The following declaration is an avoidance for posix-950. */
extern int ioctl (int fd, int request, ...);
+
+/* Specify a prototype for truncate() since we are supplying one. */
+extern int truncate (const char *path, off_t len);
+
+/* Specify a prototype for socketpair() since we supplying one. */
+extern int socketpair (int family, int type, int protocol, int fd[2]);