[m-rev.] for review: 64-bit Mercury for Mac OS X

[Ian MacLarty]

On Sat, Feb 27, 2010 at 10:31 PM, Julien Fischer
<juliensf at csse.unimelb.edu.au> wrote:
>
> The diff below only includes the changes to the configure script.
> I will update README.MacOS once the 64-bit Darwin support has been
> tested for a while.
>
> ------
>
> Support 64-bit Mercury on Darwin / x86_64.  This brings Mercury into line with
> Snow Leopard, where 64-bit executables are the default.
>
> configure.in:
>        Remove the workaround that always forced the generation of 32-bit code
>        on Darwin versions 9 and 10.  (You will still get 32-bit code on
>        Darwin 9 by default.)
>
>        Determine what C compiler we are using (or the user wants us to use)
>        before trying to work out the details of the host architecture.
>        We need to do this because the code in config.guess uses the C compiler
>        to determine whether we are on x86_64 or i*86 Darwin.
>
>        Force the use of the none grades on x86_64 Darwin as well (at least
>        for now.)
>

That looks fine to me.

Ian.

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