Issue while building O2Physics on macOS (when compiling ROOT@v6-32-06-alice10 )

Hello,

I followed the step-by-step instructions for installing O2Physics on my Mac as described in the official O2 documentation. However, the build consistently crashes during the compilation of ROOT@v6-32-06-alice10 when running aliBuild build O2Physics.

For context, I don’t have any previous ROOT installation on my machine.
I’ve attached the log file for reference.

Thank you for your help,
Ahmad

[log.txt](https://github.com/user-attachments/files/22865734/log.txt)

Start with the attached log.txt and the official O2Physics installation instructions, then reproduce the failure using `aliBuild build O2Physics` on macOS. Focus first on the ROOT@v6-32-06-alice10 compilation step and identify the reported build failure; done means the cause is isolated and a successful build or a clearly documented blocker is established.

Written by the indexing model from the issue text.