[Caml-list] problems linking with ocamlopt 4.00.1

[Caml-list] problems linking with ocamlopt 4.00.1

[Per Larsson]

Hi all,

I get the following error message when trying to link with the native compiler:

ocamlopt -o mlok2hll-1 -warn-error +A -annot str.cmxa util.cmx error.cmx id.cmx mlok.cmx parse.cmx lex.cmx hll.cmx compile.cmx main.cmx
** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(freelist.o):
 ___chkstk_ms
** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(md5.o):
 ___chkstk_ms
** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(sys.o):
 ___chkstk_ms
File "caml_startup", line 1:
Error: Error during linking

There is nothing special with the inputs above, I get the same error with other tested ocaml projects. I've used the ocaml package from the cygwin package loader. Maybe I'm doing something wrong? Is there some new library with must be loaded from version 4.0

Per

Re: [Caml-list] problems linking with ocamlopt 4.00.1

[ygrek]

On Sun, 9 Jun 2013 15:49:22 +0000
Per Larsson <per.larsson@prover.com> wrote:

> ** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(sys.o):
>  ___chkstk_ms
> File "caml_startup", line 1:
> Error: Error during linking

My guess is that you are linking with the version of C runtime different from
the one used when building ocaml binaries (probably different stack protection options).

-- 

Re: [Caml-list] problems linking with ocamlopt 4.00.1

[Damien Doligez]

Hi,

On 2013-06-09, at 17:49, Per Larsson wrote:

> I get the following error message when trying to link with the native compiler:
> 
> ocamlopt -o mlok2hll-1 -warn-error +A -annot str.cmxa util.cmx error.cmx id.cmx mlok.cmx parse.cmx lex.cmx hll.cmx compile.cmx main.cmx
> ** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(freelist.o):
> ___chkstk_ms
> ** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(md5.o):
> ___chkstk_ms
> ** Cannot resolve symbols for /usr/lib/ocaml/libasmrun.a(sys.o):
> ___chkstk_ms
> File "caml_startup", line 1:
> Error: Error during linking
> 
> There is nothing special with the inputs above, I get the same error with other tested ocaml projects. I've used the ocaml package from the cygwin package loader. Maybe I'm doing something wrong? Is there some new library with must be loaded from version 4.0

This ___chkstk_ms business is inserted by gcc and should be part of the C runtime library. Which version of gcc do you have? On cygwin, OCaml needs gcc version 4.7.2 because of an unknown problem with the gcc-4.5.3-3 package.

-- Damien