Re: [Caml-list] autoconf and caml

["Yann Régis-Gianas" <yann@lrde.epita.fr>]

On Fri, Sep 06, 2002 at 06:56:42AM -0400, Yaron M. Minsky wrote:
> Yes, but you actually don't really want simple values here, because 
> sometimes you want to use those values to do conditional compilation, 
> and ocaml values won't help you with that.
> 

	I think conditional compilation cannot be done since modules
are not first class citizens. The only way I see is to introduce
preprocessor comands with camlp4.

	The question is : what kind of conditional compilation do you
want ?  If you want something like:

	let foo x =
#ifdef I_LOVE_FOO
	  "foo"
#else
	  "bar"
#endif        

	It can be replaced by:

	open Config

	let foo x = if i_love_foo then "foo" else "bar"

	You will not pay a runtime cost because "i_love_foo" is a
static value and unused code will be trimmed by ocaml compiler.

-- 
Yann Régis-Gianas.
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