Reply from upstream https://gitter.im/seqan/Lobby?at=5f1e97ece9066820051dc93e
> You can fix that reported error by specifying `cmake -DCMAKE_CXX_FLAGS="-std=c++17 -fconcepts" <...>`
- Bug#966270: seqan3 FTBFS with gcc 10 Adrian Bunk
- Bug#966270: seqan3 FTBFS with gcc 10 Michael Crusoe
- Bug#966270: seqan3 FTBFS with gcc 10 Andreas Tille
- Bug#966270: seqan3 FTBFS with gcc 10 Michael Crusoe
- Bug#966270: [Help] Re: seqan autopkg test failures tri... Andreas Tille
