[LLVMdev] LNT bot failures

[Chris Matthews]

Looks like you fixed it.  The regex was not finding the compiler version because the space after -### was missing.

I have a fix here that I will commit which makes not finding the compiler version a hard error.  Since what we were doing was printing an error, then crashing, a sad exit seems like a better idea.

> On Aug 6, 2014, at 3:11 PM, Chris Matthews <chris.matthews at apple.com> wrote:
> 
> LNT executes:
> 
>   cc_version = capture([cc, '-v', '-E'] + cc_flags +
>                         ['-x', 'c', '/dev/null', '-###'],
>                         include_stderr=True).strip()
> 
> Then parses the result
> 
> Perhaps that output has changed in an unexpected way?
> 
>> On Aug 6, 2014, at 3:06 PM, Chris Matthews <chris.matthews at apple.com> wrote:
>> 
>> To me, that looks like LNT is having problems parsing the version info out of the compiler binary.
>> 
>>> On Aug 6, 2014, at 10:55 AM, Renato Golin <renato.golin at linaro.org> wrote:
>>> 
>>> Folks,
>>> 
>>> I'm scratching my head to understand what's wrong with this bot:
>>> 
>>> http://lab.llvm.org:8011/builders/clang-native-arm-lnt/builds/7783/steps/lnt.nightly-test/logs/stdio
>>> 
>>> There were no recent commits to lnt or the test-suite and I've cleaned
>>> the lnt.venv on the bot, but it's still failing. I also haven't
>>> updated the packages or anything on the bot.
>>> 
>>> Can any LNT specialist have a look and see if I'm missing anything obvious?
>>> 
>>> thanks,
>>> --renato
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>> 
> 
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