'cmath' file not found error for AMD builds - RESOLVED - issue with gcc 11, install gcc 12

[Speedway1]

Problem
"make" command fails with:
'cmath' file not found

e.g.:
make LLAMA_HIPBLAS=1

Solution
Check the version of GCC that you're on. If < 12 then install the latest.
Eg:
sudo apt install libstdc++-12-dev

[bobfromjapan]

I got same error in Ubuntu 22.04+b4706, but it can be fixed with installing libstdc++-12-dev by apt. See following,

ROCm/ROCm#1843