CXXSTD=c++11

[Bryan Drewery]

On 3/24/2016 4:16 PM, Dimitry Andric wrote:
> On 24 Mar 2016, at 23:54, Dimitry Andric <dim at FreeBSD.org> wrote:
>>
>> On 24 Mar 2016, at 23:51, Bryan Drewery <bdrewery at FreeBSD.org> wrote:
> ...
>>> It fails without -std=c++11 (there's more discussion in that link and in
>>> PR 205453).
>>
>> Yeah, I also commented on PR 205453 in the past, but I still don't
>> understand where the external gcc gets its _Static_assert macro from.
>> Or whether it gets it at all.  Maybe we should place a hack for this in
>> sys/cdefs.h?  We shouldn't litter contrib code with #ifdef GCC_VERSION
>> blocks.
> 
> Hm, hacking around in cdefs.h also doesn't really help, because gcc
> refuses to recognize either _Static_assert or static_assert when it's
> not in C++11 mode.  Reading back https://reviews.freebsd.org/D1390, I
> see that I originally wanted to avoid building libcxxrt with -std=c++11.
> This was so you could even build it with gcc 4.2.1 from base.
> 
> However, it really doesn't make much sense to do so, and upstream
> libcxxrt simply uses static_assert directly, and requires -std=c++11.  I
> will update the libcxxrt build to do so, probably tomorrow.
> 

Sounds good.


-- 
Regards,
Bryan Drewery

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