[LLVMdev] Use -D_GLIBCXX_DEBUG

[Chris Lattner]

On Thu, 7 Jun 2007, David A. Greene wrote:
> I just made a patch to our local llvm build here to pass -D_GLIBCXX_DEBUG when
> building llvm.  This switch turns on debug code in libstdc++ that checks for
> various violations.  We've already discovered several llvm bugs with it.
> Should I commit a change back to the official sources?  It will almost
> certainly cause tests to fail, but that's a GOOD thing.

Ooh cool.  I'd strongly prefer that we fix the bugs in LLVM before 
enabling this :)

-Chris

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