From: Brad <coish@...>
Date: 2003-12-03T09:07:06+09:00
Subject: Re: Embedding Ruby in C

What's the compile command line look like?  Seems to me that you're
trying to link without telling the compiler where the implementation of
ruby_init(), etc. are located.  

You need to find out what the name of the shared library (or static
library, which ever you prefer) for your operating system (For example,
on a Linux system the library might be ruby.so or ruby.lib, I don't know
what it's actually called :) ) and link that file to your program.

e.g.
Suppose the library is actually ruby.so
Suppose you're using cc for c compiles

cc out.c -lruby.so

Hope this helps!  Sorry I couldn't be more accurate.

Regards,
Brad

Ron Coutts wrote:

> > Here is what i get:
> > 
> > Compiling...
> > out.c
> > Linking...
> > out.obj : error LNK2001: unresolved external symbol _ruby_init
> > out.obj : error LNK2001: unresolved external symbol _ruby_finalize
> > out.obj : error LNK2001: unresolved external symbol _rb_eval_string
> > Debug/out.exe : fatal error LNK1120: 3 unresolved externals
> > Error executing link.exe.
> > 
> > out.exe - 4 error(s), 0 warning(s)
> > 
> > Any ideas? Thanks,
> 
> Isn't this just a C linker error?  I've never embedded ruby myself, but
> it seems there's a missing lib file containing the object code for
> functions ruby_init, ruby_finalize and rb_eval_string.
> 
> Ron
> 
>