Re: [Chicken-users] OpenGL library

[Felix Winkelmann]

John Pallister wrote:
> > Basically, csi is "just" an interpreter, right? So you can prototype your
> > functions from the REPL (executed as interpreted byte-code of some sort?)
> > and then go away and compile the Scheme & C code and link it into the
> > application, or load the object code (once) from the REPL using LOAD. But
> > after that, if you go back to the REPL, you can presumably enter a
> > redefinition of a  function to produce some new interpreted code, but you
> > can't, say, repeatedly recompile the Scheme->C->machine code and 
> > re-load it
> > into your REPL-running process.

With ELF shared objects it's not possible to reload the
same shared library a second time. You can load one with a
different name, though.
But interpreted and compiled code share the same namespace,
so you can (as Chris has described) load compiled code and
redefine toplevel bindings repeatedly in the interpreter. You could also
load another compiled file (via `load') and have that redefine
any toplevel bindings as well.

> > So, if you want to be developing and running compiled, native code, your
> > REPL becomes a run-evaluate-print-save-compile-run-load loop, or 
> > something.

Yes, basically that's it. But you could compile code to a differently
named ".so" file, and repeatedly reload every new instance. That
should work.


cheers,
felix