On 5/15/21 6:33 AM, Lone_Wolf via arch-general wrote:

On 15-05-2021 12:25, Lone_Wolf via arch-general wrote:

...

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


found another possible cause in https://gcc.gnu.org/gcc-11/porting_to.html .

> The following headers are used less widely in libstdc++ and may need to be included explicitly when compiled with GCC 11:

 > <limits> (for std::numeric_limits)
 > <memory> (for std::unique_ptr, std::shared_ptr etc.)
 > <utility> (for std::pair, std::tuple_size, std::index_sequence etc.)
 > <thread> (for members of namespace std::this_thread.)


Thanks LM - perhaps you can offer your thoughts upstream by adding to the issue:

https://gitlab.isc.org/isc-projects/kea/-/issues/1871

This problem exists with the released version in community as well as git master, fyi.

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