{IOV_MAX} symbols

[René Møller Fonseca]

Since cygwin implements the XSI functions readv and writev; the symbols 
_SC_IOV_MAX and _XOPEN_IOV_MAX MUST also be defined (IOV_MAX is already 
defined).

/** Belongs in unistd.h. */
#define _SC_IOV_MAX ???

/** Specifies the most restrictive value (belongs in limits.h). */
#define _XOPEN_IOV_MAX 16

Don't forget to add support for _SC_IOV_MAX in sysconf.

René

-- 
B.Sc. in Computer Systems Engineering
The Maersk Mc-Kinney Moller Institute for Production Technology
University of Southern Denmark
http://www.mip.sdu.dk/~fonseca


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