Re: [Caml-list] custom toplevel under darwin

[jehenrik <jehenrik@yahoo.com>]

Ah, got it.  Has nothing to do with portability.  The external 
definitions must be in a file named .ml, not .mli in order to get linked 
in.

Thanks for helping me with my debugging myopia.


Jeff Henrikson



On Tuesday, November 12, 2002, at 04:17 AM, Lex Stein wrote:

>
> Try:
>
> ocamlmktop -custom inspect.o intro_runtime.ml -o top
>
> This works for me Ocaml 3.06 / OS X 10.2 with the inspect.c example from
> the O'Reilly book.
>
> Does it work for you ? If not, what are the error messages ?
>
> Lex
>
> On Tue, 12 Nov 2002, jehenrik wrote:
>
>> Are custom toplevels supposed to work under darwin with ocaml 3.06?  I
>> have a simple .cpp file from the OReily book:
>>
>>
>> inspect.c:
>>
>> #include <stdio.h>
>> #include <caml/mlvalues.h>
>>
>> extern "C" value inspect (value v)
>> {
>>    if (Is_long(v))
>>      printf ("integer (%ld) : %ld", (long) v, Long_val(v));
>>    else if (Is_block(v))
>>      printf ("v is a pointer");
>>    else
>>      printf ("v is neither an integer nor a pointer (???)");
>>    printf("   ");
>>    fflush(stdout) ;
>>    return v ;
>> }
>>
>>
>>
>>
>> and a simple .ml file, intro_runtime.ml:
>>
>> external inspect1 : 'a -> 'a = "inspect" ;;
>> inspect1 123;;
>>
>>
>>
>> As a standalone program this works fine:
>>
>> ocamlc -custom inspect.o intro_runtime.ml -o intro_runtime # this works
>>
>>
>> But this way of making a toplevel, along with all the variations I can
>> think of, doesn't:
>>
>> ocamlmktop -custom inspect.o  -o intro_runtime
>>
>>
>> # external inspect1 : 'a -> 'a = "inspect" ;;
>> external inspect1 : 'a -> 'a = "inspect"
>> # inspect1;;
>> The external function `inspect' is not available
>> # inspect1 123;;
>> The external function `inspect' is not available
>>
>>
>>
>> If this functionality is not ported, I would appreciate it if somebody
>> could pass that on to me.
>>
>>
>> Jeff Henrikson
>>
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