Autoconf SNMP Library checks

[Alan DeKok]

Arran Cudbard-Bell wrote:
> Yep that would be it,
> Damn OSX for not including the ucd headers :\
> 
> Ok then possibly
...
> snmp_include_dir is already used in the snmp include checks, it's just 
> not set anywhere ...

  Thanks, I've added --with-snmp-include-dir in 1.1.7 and in CVS head.

  Alan DeKok.