[Fxruby-users] Re: FXRuby install help... please...

[Lyle J. <ly...@kn...>]

On Jul 5, 2004, at 12:00 PM, Jeff Koppe wrote:

> Help! I've either discovered a bug or, more likely, have messed up my 
> install
> of fxruby. While irb and the hello2.rb program both return a message 
> saying
> the fox.so file is missing, the file and path are as listed in the 
> error
> message. (See sampe irb message below.) I've looked through the 
> various help
> forums but have yet to find any similar problems and so I'm turning to 
> you
> for help.

<snip>

> jkoppe@linux:~/downloads/ruby> irb
> irb(main):001:0> require 'rubygems'
> => true
> irb(main):002:0> require_gem 'fxruby'
> LoadError: libFOX-1.2.so.0: cannot open shared object file: No such 
> file or
> directory - 
> /usr/local/lib/ruby/gems/1.8/gems/fxruby-1.2.0/ext/fox/fox.so
>         from 
> /usr/local/lib/ruby/gems/1.8/gems/fxruby-1.2.0/ext/fox/fox.so
>         from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:54:in 
> `require_gem'
>         from (irb):2
> irb(main):003:0>

<snip>

The problem is that Ruby can't find libFOX-1.2.so.0, which is to say, 
the C++ FOX library that FXRuby depends on. [This is unfortunately a 
little obscure from the irb stack trace!]

As you suspected, the problem (which is easily worked-around) is that 
you installed FOX in a non-standard location, under your home directory 
instead of one of its usual haunts like /usr/local. But don't fret. 
Take a look at the instructions near the bottom of this page:

	http://www.fxruby.org/doc/build.html

under the section "Things That Can Go Wrong: Cannot load library". It 
describes a couple of ways to modify your operating environment (e.g. 
by setting the LD_LIBRARY_PATH environment variable, or by modifying 
your /etc/ld.so.conf file) to get things working. You should *not* need 
to recompile FOX or FXRuby; just make one of the suggested changes and 
try again.

Hope this helps,

Lyle