build failure

[BrunoLiegiBastonLiegi]

Hello,
I'm facing build errors in manjaro 5.5.7 with gcc & g++ 9.2.
Here's a screenshot

Furthermore there is a repo implementing arch PKGBUILD for hcc, I tried with that too but ended with build error anyway, a different one though. All the details can be found here https://github.com/rocm-arch/rocm-arch/issues/25