thanks Nobuyoshi,

> 
> Then try
>   find_library('iconv','libiconv')
> or
>   find_library('iconv','libiconv_open')

yes, both of those work.

Does this mean the extconf.rb file for net-geoip-0.06[1] is incorrect 
then? If I hack it to change the 'iconv_open' in that file to 
'libiconv_open' instead, will the program still build ok?

> 
> find_library should take headers parameter as well as have_library,
> but it'd be too late.

I'm sorry I don't understand what you've said here - are you saying it 
would be nice to change find_library to have this extra functionality?

cheers,
Matt

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