os x 64-bit?

[Antoine Latter]

On Wed, Nov 10, 2010 at 9:04 AM, Gregory Wright <gwright at antiope.com> wrote:
>
> Hi,
>
> I built ghc 7.0.1-rc2 yesterday 64-bit on Snow Leopard.  Much of the work
> in getting ghc to build 64-bit was done by Barney Stratford; the MacPorts
> ghc 6.10.4 has built successfully in 64 bit mode for a number of months.
>
> Until just a few weeks ago 6.12.x and HEAD wouldn't build 64-bit because
> of changes in ghci.  These changes were in part to remove the limitation
> that modules
> loaded by ghci had to be located below the 2 GB address boundary.
>  Unfortunately,
> they revealed code paths in ghc's Mach-O linker that were never tested. (See
> bug #4318. Other bugs may be partial duplicates; the tickets probably need
> to be examined to check which ones are distinct.)
>
> The good news is that the linker patches were done just in time for 7.0.1.
> You should be all set to try the release candidates on Snow Leopard 64-bit.
>
> I built my 7.0.1-rc2 using a 64 bit 6.10.4.  My original 64-bit 6.10.4 was
> bootstrapped
> using a 32-bit 6.10.4 compiled on Leopard.  Reports of trouble building the
> 7.0.1 release candidates using a 32-bit bootstrap compiler would be
> especially
> useful.

Are there any instructions for building in this fashion from the
source tarball or from VCS?

Antoine