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Subject: Re: [boost] Clang 3.4 failing to compile boost 1.57 headers
From: John Maddock (boost.regex_at_[hidden])
Date: 2015-01-18 14:22:46


>> Results are as follows for clang 3.5
>>
>> gcc version gcc reports clang reports
>> 4.6.3 40603 40700
>> 4.8.2 40802 40800
>> 4.9.0 40900 40900
>> 4.9.2 40902 40900
>> 5.0.0 50000 40700
>>
>> I can see that there are some serious problems getting the correct
>> identification with Clang.
>
> Looks like unless it recognizes 4.8 or 4.9, it reports 40700 by default,
> which would make things a bit complicated.

No it checks for C++11 headers introduced with specific GCC versions -
if the header is found (via clang __has_include) then the compiler
version is assumed to be later than the GCC version that first
introduced that header.

So... 4.6.3 reporting 4.7 implies that <chrono> is present?

And 5.0 reporting 4.7 implies that none of <experimental/any>,
<shared_mutex> or <ext/cmath> are present?

John.


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