On 15-05-2021 12:25, Lone_Wolf via arch-general wrote:
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
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.)
P.S. sorry for the bad formatting in previous message.
LW
