Hi Danilo, thank you for your response!
I updated Xcode CLT and restarted the installation process using the source code from the Git repository (previously, I had used the version downloaded from the ROOT website).
Now, I’m encountering different errors such as the following:
/PATH_TO_ROOT/root_git/tree/readspeed/src/ReadSpeed.cxx:273:37: error: no member named 'GetThreadPoolSize' in namespace 'ROOT'
273 | const auto actualThreads = ROOT::GetThreadPoolSize();
| ~~~~~~^
/PATH_TO_ROOT/root_git/tree/readspeed/src/ReadSpeed.cxx:280:47: error: no member named 'GetTasksPerWorkerHint' in 'ROOT::TTreeProcessorMT'
280 | std::ceil(float(ROOT::TTreeProcessorMT::GetTasksPerWorkerHint() * actualThreads) / float(d.fFileNames.size()));
| ~~~~~~~~~~~~~~~~~~~~~~~~^
/PATH_TO_ROOT/root_git/tree/readspeed/src/ReadSpeed.cxx:319:34: error: no matching member function for call to 'MapReduce'
319 | const auto byteData = pool.MapReduce(readRange, rangesPerFile[fileIdx], SumBytes);
| ~~~~~^~~~~~~~~
...
/PATH_TO_ROOT/root_git/tree/readspeed/src/ReadSpeed.cxx:326:36: error: no matching member function for call to 'MapReduce'
326 | const auto totalByteData = pool.MapReduce(processFile, ROOT::TSeqUL(d.fFileNames.size()), SumBytes);
| ~~~~~^~~~~~~~~