Re: [Caml-list] Link a .so/.dll dynamically

[Romain Bardou <bardou@lri.fr>]

Le 14/09/2011 18:07, Stéphane Glondu a écrit :
> On 09/14/2011 05:56 PM, Romain Bardou wrote:
>> [...]
>>      ocamlopt -c -ccopt -fPIC wrapper.c
>>      ocamlopt -c mylib.ml
>>      ocamlmklib wrapper.o mylib.cmx -o mylib
>>      ocamlopt -c main.ml
>>      ocamlopt dynlink.cmxa main.cmx -o main
>>      CAML_LD_LIBRARY_PATH=. ./main mylib.cmxa
>>
>> But when Dynlink.load is called, it fails with the following error:
>>
>>      error loading shared library: /home/.../mylib.cmxa: invalid ELF header
>>
>> I'm thinking this is because the .cmxa has not been compiled with the
>> -shared option, but I don't know how to tell ocamlmklib to compile with
>> the -shared option.
>
> You can turn the .cmxa generated by ocamlmklib into a .cmxs by calling
> (for example):
>
>    ocamlopt -shared -I . -linkall -o mylib.cmxs mylib.cmxa
>
> The .cmxs should then be loadable by Dynlink.load.

Thanks, this solves the "native" part of my problem ! Now I need to 
figure out how to link this .so file.

-- 
Romain Bardou