* context.c   (IOV_MAX): Define to 16 if we don't have IOV_MAX previously defined.
* context.c
  (IOV_MAX): Define to 16 if we don't have IOV_MAX previously defined.

Suggested by: Ivan Zhakov
Reviewed by: Justin Erenkrantz

jandre/serf,jandre/serf,jandre/serf,jandre/serf