[arch-general] [arch-dev-public] GCC 11 and new toolchain on [testing]

[Lone_Wolf]

On 14-05-2021 23:06, Genes Lists via arch-general wrote:
> On 5/13/21 9:29 PM, Giancarlo Razzolini via arch-dev-public wrote:
>> Hi,
>>
> ...
>>
>> Also, if you guys notice any issues, let me know.
>>
>> Regards,
>> Giancarlo Razzolini
>
>
> Hi
>
> FYI, I've come across one issue which was triggered after updating to 
> gcc 11.
>
> Building kea (from git) worked fine using gcc 10, I am now seeing fail :
>
> checking thread support... no
> configure: WARNING: unsupported C++11 feature
> configure: retrying by adding --std=c++1x to g++ --std=c++0x
> checking --std=c++1x support... no
> configure: error: thread (a C++11 feature) is not supported
>
> gene


It seems gcc11 in C++11 mode has only partial support for thread safety 
and the thread class[1] .

Does it work if you build with -std=c++11||||or -std=gnu++11 ?

LW



[1] 
https://gcc.gnu.org/onlinedocs/gcc-11.1.0/libstdc++/manual/manual/status.html#status.iso.2011