[PATCH] [libcxx] Allow the use of ccache when running the test suite.

[Eric Fiselier]

In http://reviews.llvm.org/D6647#103223, @danalbert wrote:

> > In http://reviews.llvm.org/D6647#101645, @danalbert wrote:
>
> > 
>
> > > Couldn't you just set cxx_under_test to 'ccache clang++' and be done with it?
>
> > 
>
> > 
>
> > As it currently stands that wouldn't work. cxx_under_test is expected to be a single token.
>
>
> That should be an easy fix though, right?


Not really. Doing so means we can't use `lit.util.which('ccache clang++')`. I currently use the compiler path to try and find the llvm-symbolizer binary.


http://reviews.llvm.org/D6647

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