p.s. my environment: ubuntu 9.04, ruby 1.8.7

On Oct 8, 2:25 pm, Lu Liu <nudtl...@gmail.com> wrote:

> Hi all,
>
> I have successfully installed ffi-0.5.0. But when I tried require
> 'ffi' in irb, it reported LoadError: no such file to load -- ffi. I
> have no idea why this happens.
>
> Actually, the installation process was not so smooth either. When I
> tried sudo gem install ffi, it reported such an error:
>
> rake RUBYARCHDIR=/var/lib/gems/1.8/gems/ffi-0.5.0/lib RUBYLIBDIR=/var/
> lib/gems/1.8/gems/ffi-0.5.0/lib
> sh: rake: command not found
>
> but I found this post (http://bugs.debian.org/cgi-bin/bugreport.cgi?
> bug=529663), added a symbolic link to rake in /usr/bin, and solved the
> installation problem. I am not sure if this is also a bug of RubyGem
> on Ubuntu.
>
> However, the require command can not find 'ffi' even though I tried
> both of the two ways of ffi installation (directly gem install and the
> git way mentioned in this post:http://groups.google.com/group/ruby-ffi/browse_thread/thread/e46d8a6a...).
>
> Any suggestions? e.g. how can I check if the 'ffi' is in the list that
> ruby require command can find?
>
> BTW: i just tried the require 'ffi' in /var/lib/gems/1.8/gems/
> ffi-0.5.0/lib with irb, it worked. but in other directories, no.
>
> Thanks a lot!