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Re: "unbound variable"

From: Tomas By
Subject: Re: "unbound variable"
Date: Mon, 27 Jun 2011 10:56:07 +0200
User-agent: SquirrelMail/1.4.18

Hi again,

Thanks for the help so far.

On Mon, June 27, 2011 10:38, nalaginrut wrote:
> I can't give accurate answer because you provided less information. So I
> just give a guess:
> If you have wrapped a module in mapdisplay.scm, you'd have imported some
> symbols out of this module. I know you can see get-map in REPL's
> "current-module", but mapdisplay can't see it in it's own
> "current-module". They are different.
> If you write this get-map within a module, you may use "#:use-module" in
> mapdisplay.scm. If not, you need to import it from your .so file with
> FFI such as "dynamic-link". You may checkout it out in the manual.

Well, as I tried to explain, "get-map" is statically linked into the
executable, defined with "scm_c_define_gsubr" which is called from the
"inner_main" that is passed to "scm_boot_guile".

I don't think I should have to also dynamically link it.

Do I need to do another "define_gsubr" (or whatever) from inside mapdisplay?


>> On Mon, June 27, 2011 05:40, nalaginrut wrote:
>> > I think you need to import this symbol in your module, in this case, I
>> > think it's mapdisplay.scm. If get-map's not within a module, you'd
>> need
>> > to get this symbol with "dynamic-link" and it's friends.
>> It's in the top-level module.
>> | guile> (apropos "get-map")
>> | (guile-user): get-map      #<primitive-procedure get-map>
>> My extensions are statically linked into a Scheme shell executable.
>> Do I need to extra-import top-level functions into my Scheme module?
>> How do I do that?
>> /Tomas

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