[PATCH][www] Mention that libcxx is necessary on OS X

[Jonathan Roelofs via cfe-commits]

On 9/4/15 2:55 PM, Yuri Gribov wrote:
> On Fri, Sep 4, 2015 at 11:49 PM, Jonathan Roelofs
> <jonathan at codesourcery.com <mailto:jonathan at codesourcery.com>> wrote:
>
>     On 9/4/15 2:45 PM, Yuri Gribov via cfe-commits wrote:
>
>         Hi all,
>
>         According to https://llvm.org/bugs/show_bug.cgi?id=17821 , when
>         Clang
>         gets built on OS X we need to build it with libcxx and libcxxabi
>         (otherwise tests will fail to link with "can't find iostream". This
>         patch adds a note to getting started page. Ok to apply?
>
>
>     Which tests fail to link for you?
>
>
> Sorry, I'm not at my desk right now. Basically make check-all failed in
> 5 seconds and after some googling I found the above bug with Bob
> Wilson's advice to link libcxx which fixed the issue.
>
> Do you mean that libcxx shouldn't be needed on Mac?

What I mean is that we should either fix the tests, or describe 
precisely the scenario in which libcxx+libcxxabi is needed.... because 
it's not always needed. I suspect it's just needed when testing the 
sanitizers (but I might be wrong).


Jon

>
>   -Y

-- 
Jon Roelofs
jonathan at codesourcery.com
CodeSourcery / Mentor Embedded