@itemize
@item
This header file is missing on some platforms:
-NetBSD 3.0, OpenBSD 3.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1,
+NetBSD 3.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1,
Cygwin 1.7.7, mingw, Interix 3.5, BeOS.
@end itemize