[issue13241] llvm-gcc-4.2 miscompiles Python (XCode 4.1 on Mac OS 10.7)

[Ned Deily]

Ned Deily <nad at acm.org> added the comment:

Lucas, there is nothing particularly special about the configuration parameters that Michael used other than enabling debug.  Prior to Xcode 4, Xcode supplied a "standard" (non-LLVM) gcc as the default compiler, 4.2 for 10.6 and 4.0 for 10.5 and 10.4.  Python is regularly built and supported on these configurations and is known to work using a default ./configure (with no parameters).  Xcode 4.2 is problematic because it no longer includes the non-LLVM gcc and there have been various rumors of problems and at least one patch applied already.  As noted above, I am testing the various significant configure and compiler options right now for Xcode 4.2 and will update this issue with recommendations and patches (if necessary) when that is complete.

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<http://bugs.python.org/issue13241>
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