<div class="gmail_quote"><div>Hi Greg,</div><div><br></div><div>Thanks very much for all your work on this, and Barney Stratford too. This is great news. I'm doing a lot of numerical work with Doubles at the moment, so progress is quite welcome!</div>
<div><br></div><div>I can try building 7.0.1-RC using a 32-bit 6.12.3, although probably not until the weekend. I'll let you know how it goes.</div><div><br></div><div>If there are any special build instructions for this, maybe you could update trac #2965 with details?</div>
<div> </div><div>Cheers,</div><div>John</div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">From: Gregory Wright <<a href="mailto:gwright@antiope.com">gwright@antiope.com</a>><br>
<br>
Hi,<br>
<br>
I built ghc 7.0.1-rc2 yesterday 64-bit on Snow Leopard. Much of the work<br>
in getting ghc to build 64-bit was done by Barney Stratford; the MacPorts<br>
ghc 6.10.4 has built successfully in 64 bit mode for a number of months.<br>
<br>
Until just a few weeks ago 6.12.x and HEAD wouldn't build 64-bit because<br>
of changes in ghci. These changes were in part to remove the limitation<br>
that modules<br>
loaded by ghci had to be located below the 2 GB address boundary.<br>
Unfortunately,<br>
they revealed code paths in ghc's Mach-O linker that were never tested. (See<br>
bug #4318. Other bugs may be partial duplicates; the tickets probably need<br>
to be examined to check which ones are distinct.)<br>
<br>
The good news is that the linker patches were done just in time for 7.0.1.<br>
You should be all set to try the release candidates on Snow Leopard 64-bit.<br>
<br>
I built my 7.0.1-rc2 using a 64 bit 6.10.4. My original 64-bit 6.10.4<br>
was bootstrapped<br>
using a 32-bit 6.10.4 compiled on Leopard. Reports of trouble building the<br>
7.0.1 release candidates using a 32-bit bootstrap compiler would be<br>
especially<br>
useful.<br>
<br>
Best Wishes,<br>
Greg<br>
<br>
<br>
On 11/9/10 12:48 PM, Brian Bloniarz wrote:<br>
> On 11/09/2010 02:36 AM, John Lato wrote:<br>
>> I was wondering if there is a status report anywhere of progress towards<br>
>> making ghc compile 64-bit on Snow Leopard. There are a few trac tickets<br>
>> that seem related:<br>
> I think <a href="http://hackage.haskell.org/trac/ghc/ticket/3472" target="_blank">http://hackage.haskell.org/trac/ghc/ticket/3472</a><br>
> is related if you haven't seen it.<br>
><br>
> I'm not working on this, though I am interested in helping enable<br>
> cross-compilation of GHC in general. I have been working on one facet<br>
> though: hsc2hs. hsc2hs is one of barriers to cross-compilation because<br>
> it requires compiling and running a .c file on the target machine<br>
> (because it needs target-specific information like the layout of<br>
> structures; GHC's mkDerivedConstants also has the same problem).<br>
><br>
> I have a proof-of-concept patch which can do hsc2hs codegeneration<br>
> without running anything. This uses the same approach that autoconf<br>
> uses for cross-compilation. I'll try to post it within the next few<br>
> days -- if anybody finds this approach interesting please let me know.<br>
><br>
> Thanks,<br>
> -Brian<br></blockquote></div>