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From: Benedikt Meurer <benedikt.meurer@googlemail.com>
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Subject: Re: [Caml-list] Link a .so/.dll dynamically


On Sep 14, 2011, at 17:00 , Romain Bardou wrote:

> My first problem is: I tried something similar for native code (using ocamlopt instead of ocamlc, .cmx instead of .cmo and .cmxa instead of .cma) but ocamlmklib fails with the following error:
> 	/usr/bin/ld: wrapper.o: relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC
> 	wrapper.o: could not read symbols: Bad value
> 	collect2: ld returned 1 exit status
> I have absolutely no idea what this means, I'm really confused here and Google does not help.

The error messages already includes the answer, you need to pass -fPIC to the C compiler when compiling wrapper.c, i.e.

$ gcc -c -fPIC -o wrapper.o wrapper.c

> Romain Bardou

HTH,
Benedikt