The code was broken - you do in fact need the ffi_lib 'c' line now.

Thanks for pointing it out.


On 25 March 2010 11:45, KISHIMOTO, Makoto <ksmakoto@dd.iij4u.or.jp> wrote:

> Hello,
>
> I've tried SYNOPSIS' code of http://github.com/ffi/ffi .
>
> #====
> require 'ffi'
>
> module MyLib
>  extend FFI::Library
>  ffi_lib 'c'                              # insert this line
>  attach_function :puts, [ :string ], :int
> end
>
> MyLib.puts 'Hello boys using libc!'
> #====
>
> Without "ffi_lib 'c'", following error occured.
>
> /usr/local/lib/ruby/gems/1.9.1/gems/ffi-0.6.3/lib/ffi/library.rb:79:in `ffi_libraries': no library specified (LoadError)
>        from /usr/local/lib/ruby/gems/1.9.1/gems/ffi-0.6.3/lib/ffi/library.rb:106:in `attach_function'
>
> The SYNOPSIS' code correct?
>
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