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From: Kaustuv Chaudhuri <kaustuv.chaudhuri@inria.fr>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Checking for caml version from C
Date: Wed, 15 Sep 2010 23:14:51 +0200	[thread overview]
Message-ID: <AANLkTin=1v_dWttitGYufEu59ix04QGBivCAEOtMFnZp@mail.gmail.com> (raw)
In-Reply-To: <20100915192954.GA8555@yeeloong>

On Wed, Sep 15, 2010 at 9:29 PM,  <rixed@happyleptic.org> wrote:
> I'd like to know if there is a standard way to check for
> Ocaml version with the C preprocessor

Not sure about standard ways, but here's one ugly way:

   % cat ugly.c
   #if OCAML_MAJOR == 3 && OCAML_MINOR == 12
     Hello 3.12 world
   #else
     Hello non-3.12 world
   #endif

   % ocamlc -version
   3.12.1+dev4 (2010-09-03)

   % ocamlc \
       -ccopt -DOCAML_MAJOR=`ocamlc -version | cut -d'.' -f1` \
       -ccopt -DOCAML_MINOR=`ocamlc -version | cut -d'.' -f2` \
       -ccopt -E \
       ugly.c
   # 1 "ugly.c"
   # 1 "<built-in>"
   # 1 "<command-line>"
   # 1 "ugly.c"

     Hello 3.12 world


(Drop the -ccopt -E option when you use it, obviously.)

-- Kaustuv


      reply	other threads:[~2010-09-15 21:14 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-15 19:29 rixed
2010-09-15 21:14 ` Kaustuv Chaudhuri [this message]

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