ocamlbuild: simplification of invocation

ocamlbuild: simplification of invocation

[Renald Buter]

Hello,

I'm not sure if this is the right forum to ask this question, but I'll 
post it anyway :)

Hello list,

I have a simple test setup that I'd like to build with ocamlbuild:

  open OUnit

  let test_failure _ = assert_failure "failed"

  let test_suite = "Setup" >::: [
      "failure" >:: test_failure
    ]

  let _ = run_test_tt_main test_suite

To build this, I have to enter:

  ocamlbuild -cflags -I,+oUnit -lflags -I,+oUnit -libs unix,oUnit 
test_setup.native

Now, is there any way of simplifying this? I've tried looking into the 
tags for the _tags file, but got confused...

With kind regards,

Renald Buter

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Re: [Caml-list] ocamlbuild: simplification of invocation

[Stéphane Glondu]

Renald Buter a écrit :
> [...]
> To build this, I have to enter:
> 
>   ocamlbuild -cflags -I,+oUnit -lflags -I,+oUnit -libs unix,oUnit 
> test_setup.native
> 
> Now, is there any way of simplifying this? I've tried looking into the 
> tags for the _tags file, but got confused...

You can make a plugin which sets these options by putting the following 
lines in a file named myocamlbuild.ml at the root of your project:

--8<----------
open Ocamlbuild_plugin;;

dispatch begin function
   | Before_options ->
       Options.ocaml_cflags := [ "-I"; "+oUnit"];
       Options.ocaml_lflags := [ "-I"; "+oUnit"];
       Options.ocaml_libs := [ "unix"; "oUnit"];
   | _ -> ()
end;;
--8<----------

Then you can just invoke "ocamlbuild test_setup.native".


Cheers,

-- 
Stéphane Glondu

Re: [Caml-list] ocamlbuild: simplification of invocation

[Renald Buter]

Stéphane Glondu wrote:
> Renald Buter a écrit :
>> [...]
>> To build this, I have to enter:
>>
>>   ocamlbuild -cflags -I,+oUnit -lflags -I,+oUnit -libs unix,oUnit 
>> test_setup.native
>>
>> Now, is there any way of simplifying this? I've tried looking into the 
>> tags for the _tags file, but got confused...
> 
> You can make a plugin which sets these options by putting the following 
> lines in a file named myocamlbuild.ml at the root of your project:
> 
> --8<----------
> open Ocamlbuild_plugin;;
> 
> dispatch begin function
>   | Before_options ->
>       Options.ocaml_cflags := [ "-I"; "+oUnit"];
>       Options.ocaml_lflags := [ "-I"; "+oUnit"];
>       Options.ocaml_libs := [ "unix"; "oUnit"];
>   | _ -> ()
> end;;
> --8<----------
> 
> Then you can just invoke "ocamlbuild test_setup.native".
> 
> 
> Cheers,
> 

Ah! That looks simple... Thank you.

Could this be made file-specific (I will not have to use oUnit in the 
final result)? Probably some combination of myocamlbuild.ml and _tags? 
Or are multiple targets a problem for ocamlbuild?

With kind regards,

Renald Buter

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intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
the system manager.
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Re: [Caml-list] ocamlbuild: simplification of invocation

[Stéphane Glondu]

Renald Buter a écrit :
> [...]
> Could this be made file-specific (I will not have to use oUnit in the 
> final result)? Probably some combination of myocamlbuild.ml and _tags? 
> Or are multiple targets a problem for ocamlbuild?

Sure. I recommend you to read:

http://brion.inria.fr/gallium/index.php/Using_an_external_library

Cheers,

-- 
Stéphane Glondu