XCode 4.4 harmful

[Craig Treleaven]

At 9:46 PM +1000 9/18/12, Joshua Root wrote:
>On 2012-9-18 21:36 , Craig Treleaven wrote:
>>  Hi:
>>
>>  In case it helps others, it appears that XCode 4.4 is the cause of a
>>  run-time problem with mythtv-core.25.  To recap, for some users, one of
>>  Myth's programs, mythfrontend, would consistently segfault before the
>>  main window was drawn (with the crashed thread in libunwind):
>>
>>  https://trac.macports.org/ticket/35934
>>
>>  One of the affected users, James George, put a tremendous amount of work
>>  into tracking down the issue.  We eventually determined that the code
>>  would run successfully if built with apple-gcc-4.2.  James has
>>  determined that code produced with XCode 4.3.3 works OK; XCode 4.4.0+
>>  leads to crashes.  Testing done on 10.7.4.
>>
>>  There were no obvious errors reported in the XCode 4.4.0+ builds.
>>
>>  Could someone identify what changed from 4.3.3 to 4.4.0 that might
>>  account for this?  Bonus points if you can put it in simple terms that I
>>  can follow!  ;)
>
>Have you tried Xcode 4.4's llvm-gcc-4.2? If that works, it would narrow
>the problem down to clang.

Will do.