A build problem on Mac

[Kazu Yamamoto ( 山本和彦 )]

Hi,

Austin, thank you for explanation.

Fortunately or unfortunately, I can build GHC head today without any
reverting. I will reset the GHC tree to yesterday and try again.

--Kazu

> Hello Kazu, thank you for the help!
> 
> Here is the easiest way to get the output. First, run 'make' once by
> itself and make sure the build fails pretty quickly as a result of
> your error (always good to double check.)
> 
> Next, when you do that, you will see the command that caused that
> error. It's the one you posted in the original email, in fact - the
> command invoking "ghc-stage1". You can copy and paste that command
> right back into the terminal and run it in order to reproduce the
> failure. Make sure you're at the root of the GHC source tree as well:
> 
> $ cd ~/path/to/ghc-HEAD
> $ "inplace/bin/ghc-stage1" -hisuf hi -osuf ... -dyno
> compiler/stage2/build/Coverage.dyn_o
> 
> This should fail with the exact same error.
> 
> Finally, all you need to do is this:
> 
> 1. Add -ddump-cmm to the command line. Anywhere will work.
> 2. Pipe the output somewhere. Alternatively, you can copy/paste it out
> of your terminal buffer.
> 
> So:
> 
> $ "inplace/bin/ghc-stage1" -ddump-cmm -hisuf hi -osuf ... -dyno
> compiler/stage2/build/Coverage.dyn_o 2>&1 > log.txt
> 
> Double check the log.txt file - it should contain a lot of C-- output
> (thousands of lines, probably.) That's what Jan needs.
> 
> On Sun, Sep 8, 2013 at 4:24 PM, Kazu Yamamoto <kazu at iij.ad.jp> wrote:
>> Hi,
>>
>>> Good, we have a culprit then. Kazu, would you be willing to do a
>>> couple of things to provide me with more information? I'd need the
>>> Cmm dump that causes the panic. Also, tomorrow I'll add more
>>> information to this panic so that we get back name of offending code
>>> block - this should make debugging easier for me.
>>
>> OK. I understand more information is necessary for you. I can
>> help. Please tell me exact operation sequences.
>>
>> --Kazu
>>
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> 
> 
> 
> -- 
> Regards,
> Austin - PGP: 4096R/0x91384671