Re: Bus error in IRB when trying: require "fox16"

On 2/2/07, Zane <zcvohlandgmail.com> wrote:

> I have spent a couple of days trying to get the Fox GUI
library to
> interact with ruby. Now I think I am getting close.
Before I go on to
> explain my problem here is some information that may be
necessary...

<snip>


> Software Versions:
> ----------------------
> Ruby 1.8.1

Just curious: Why still running Ruby 1.8.1?

> FXRuby 1.6.5
> Fox 1.6.21
> RubyGems 0.9.1
>
> Fox and FXRuby, when compiled they say they compiled
succesfully, I have
> also recompiled FXRuby with RubyGems, all being
successful. I then go
> into irb and type require 'fox16' and I get this
message returned:
>
> /sw/lib/ruby/site_ruby/1.8/powerpc-darwin/fox16.bundle:
[BUG] Bus Error
> ruby 1.8.1 (2003-12-25) [powerpc-darwin]
> Abort trap

OK, that's bad. When I say that's bad, I mean, I don't
recall ever
seeing ruby outright *crash* when trying to load FXRuby.
It's more
common to see, for example, a failure to find one of the
shared
libraries that FXRuby needs, but the error message in that
case is
more descriptive than a simple "Bus Error".

> When I try require 'fox' in irb I get this message:
>
> LoadError: No such file to load -- fox
>         from (irb):1:in `require'
>         from (irb):1
>
> But I take it that as long as I can get fox16 working
then this won't be
> a problem.

Yeah, that's OK. The feature name that you should be trying
to require
is 'fox16'.

> I have trawled through website after website trying to
find a fix to
> this problem or some helpful information... I have have
read a heap of
> FXRuby documentation and some Ruby Documentation.

Thank you for doing all of that research on your own first.
Like I
said, this is a new one to me, so you aren't going to find
anything
about it in the FXRuby documentation.

> P.S: Here is a copy of what is writen to
ruby1.8.crash.log:

<snip>

I scanned the stack trace, and it looks like the FXRuby code
was
trying to call an internal Ruby function (st_lookup) when it
failed. I
have a hunch that that interface has changed a bit since
Ruby 1.8.1
(which is several years old now).

My advice is to upgrade to the most recent version of Ruby
(1.8.5),
and then recompile FXRuby and try again. You shouldn't need
to
recompile FOX -- just zap your FXRuby build directory and
recompile
that part.

Good luck,

Lyle
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