Re: [Caml-list] ocamlbuild and cflags

[xclerc <xavier.clerc@inria.fr>]

Le 20 juil. 2011 à 14:48, Guillaume Hennequin a écrit :

> Hello,
> 
> I came across two ocamlbuild issues today:
> 
> 1) how can one give a cflag that requires an argument, like
>    ocamlbuild -cflag -inline 2 target.native
>   Backtrace:
>    - failed to build the target 2

To overcome this problem you can execute either
	ocamlbuild -cflag -inline -cflag 2 target.native
or
	ocamlbuild -cflags -inline,2 target.native


> 2) I don't understand why ocamlbuild target.cmx would need to compile
> target.cmo on the way... this actually prevents me from using any of the
> ocamlopt-specific flags:
>    ocamlbuild -cflag -S target.cmx
>    (ocamlc itself complains it doesn't have a -S option)
> 
> any way around that?

This is a reported bug [1]; in your case, a workaround is to write the
following "myocamlbuild.ml" file:
	open Ocamlbuild_plugin

	let () =
	  dispatch begin function
	    | After_rules ->
	        tag_file "target.ml" ["myoption"];
	        flag ["ocaml"; "compile"; "native"; "myoption"] (A"-S");
	    | _ -> ()
	  end


Hope this helps,

Xavier Clerc


[1] http://caml.inria.fr/mantis/view.php?id=5282