Re: [boost] Strange libstdc++ versions in travis-ci testers

On Thu, Jun 28, 2018 at 9:11 PM Peter Dimov via Boost wrote:

Rene Rivera wrote:

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On Thu, Jun 28, 2018 at 4:40 PM Peter Dimov via Boost wrote:

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To detect the actual libstdc++ version, you should use the Boost.Config macro, as it's generally more reliable.

Why is it more reliable?

__GLIBCXX__ is a date, which is not very useful for determining the version.

Which is what Predef uses. And also uses __GLIBCPP__ as fallback. But, yes they are dates, as that's the only real indicator of *only* libstdc++ I knew of. There's _GLIBCXX_RELEASE but that's only for 7 and up. Config uses

Hm, hadn't kept up on that. I'll have to add that if available.

__has_include to detect the version under Clang,

How would __has_include help?

__GNUC__ under g++.

But that's the g++ version, not the lib version. I guess I should check the Config code :-) -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net