Build failures on Mac OS X 10.5

[Deborah Goldsmith]

I'm also going to try building on 10.4.x to see if this is 10.5- 
specific.

One more variable is that the build on 10.5 was done on a machine  
with an Intel Core 2 Duo processor. I don't know if that's relevant.

Deborah

On May 24, 2007, at 1:08 AM, Simon Marlow wrote:

> Deborah Goldsmith wrote:
>> On May 23, 2007, at 2:08 AM, Simon Marlow wrote:
>>> Deborah Goldsmith wrote:
>>>> On May 22, 2007, at 1:59 AM, Christian Maeder wrote:
>>>>> What are you trying to achieve? Did you compile parts with  
>>>>> ghc-6.6 and
>>>>> ghc-6.6.1? (That may explain the crash.)
>>>>>
>>>>> If you have installed my binary distribution you don't need to  
>>>>> compile
>>>>> the sources anymore (except for the sake of testing).
>>>> This is purely for the sake of testing. As the subject  
>>>> indicates, I'm trying to build GHC from source on 10.5. I've  
>>>> built earlier versions successfully on 10.4.
>>>> I did do a "make clean" between attempts, but I will try  
>>>> throwing the source directory away and re-extracting from the  
>>>> tar archive next.
>>>
>>> One possibility is that if you compiled GHC via C (I believe this  
>>> is still the default in 6.6.1), then changes in the gcc shipped  
>>> with 10.5 might be causing problems.  You might get further by  
>>> adding
>>>
>>> SRC_HC_OPTS     = -O -fasm
>>> GhcStage1HcOpts = -O -fasm
>>> GhcStage2HcOpts = -O -fasm
>>> GhcLibHcOpts    = -O -fasm
>>>
>>> to your mk/build.mk.  This might fix your build, but you'll still  
>>> be left with some incompatibility between GHC and the gcc in  
>>> 10.5.  You already encountered one such problem, when using - 
>>> split-objs, right?  If you get a successful build it should be  
>>> easier to debug this.
>> I already have a usable build -- the 6.6.1 binary release that  
>> Christian put together works fine on 10.5.
>
> Actually there appears to be a problem with that 6.6.1 binary  
> release, at least on your system.  Both crashes that you described  
> were in the stage1 compiler, which is compiled by your installed  
> 6.6.1.  So either
>
>   (a) your installed 6.6.1 is generating bogus code (which is why I  
> suspected a
>       gcc incompatibility, because that would explain why Christian  
> doesn't
>       see the same crash)
>
>   (b) there's a bug in GHC which makes it segfault on OS X 10.5.
>
> I'd say (b) is highly unlikely - GHC just a Haskell program (well,  
> mostly), and it therefore shouldn't segfault.
>
> Still, you tried with -O -fasm and that didn't help.  So I'm at a  
> loss to explain why your stage1 GHC is crashing.  Probably the only  
> way forward at this point is to get out gdb and figure out what's  
> going wrong.
>
> Cheers,
> 	Simon