Re: [Caml-list] Can't build a target with C stubs using ocamlbuild

["Christiano F. Haesbaert" <haesbaert@haesbaert.org>]

Just one more question, now with the real code, I was able to move
everything to myocamlbuild, but I'm getting a warning:
File "_tags", line 10, characters 12-28:
Warning: the tag "linkdep(stubs.o)" is not used in any flag
declaration, so it will have no effect; it may be a typo. Otherwise
use `mark_tag_used` in your myocamlbuild.ml to disable this warning.

## build.sh ##
ocamlbuild -use-ocamlfind all.otarget $@

## _tags line ##
<*.native>: linkdep(stubs.o)

## myocamlbuild.ml ##
open Ocamlbuild_plugin;;
dispatch begin function
  | After_rules ->
    pflag ["ocaml";"compile";] "ppopt" (fun s -> S [A"-ppopt"; A s]);
    pflag ["ocaml";"ocamldep";] "ppopt" (fun s -> S [A"-ppopt"; A s]);
    pdep ["link"] "linkdep" (fun param -> [param])
  | _ -> ()
end;;

It seems to be the same case as
http://stackoverflow.com/questions/25585813/mark-tag-used-warning-with-ocaml-4-02-0

Should I just use mark_tag_used ? It seems something else is wrong
since the tag is actually used.


On 5 June 2015 at 12:47, Christiano F. Haesbaert
<haesbaert@haesbaert.org> wrote:
> On 5 June 2015 at 12:38, Jeremy Yallop <yallop@gmail.com> wrote:
>> On 5 June 2015 at 11:29, Christiano F. Haesbaert
>> <haesbaert@haesbaert.org> wrote:
>>> ### toto_c.c ###
>>> ### toto_c.ml ###
>>
>> Both of these files will be compiled to object files called
>> 'toto_c.o'.  Renaming one of them (e.g. toto_c.c to toto_c_stubs.c)
>> should fix the problem.
>
> Hooray, great, that did the trick, thanks a lot :D.