vchoi_fork

[svn-r2817] 
Purpose:
    Bugfix
Description:
    The socklen_t was hardcoded to be defined as int on architectures
    other than Linux and SUN (Solaris).
    Now it turned out that Solaris isn't consistent in this manner.
    Versions earlier than 2.7 do not define this type.
Solution:
    Check at configure time whether the socklen_t type is defined
    by the system header includes. If not than this type is defined
    to be 'int'.
Platforms tested:
    Solaris 2.6 and 2.7
    Linux
    IRIX64
    Windows NT (command line configure with both cl abd gcc)