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Can't Run TUnfold Tutorial

I’m trying to run some of TUnfold tutorials and I am finding that the macros are unable to locate the TUnfold.h header files. I understand that TUnfold was included into the ROOT package in a prior version so I am confused as to why I am unable to locate the TUnfold header files. Did I miss a flag when I built ROOT (I built from source to enable c++17 capabilities instead of downloading a precompiled binary)? Or do I need to enable TUnfold somehow?

I’ve found that the source/header files are found at Stefan Schmitt, about TUnfold, is it just as simple as simply extracting the .h and .cxx files to my ROOT installation?

Any help would be greatly appreciated. Thanks in advance!

ROOT Version: 6.22/06
Platform: Ubuntu 20.04


the Unfold ROOT package requires a ROOT build with XML support and this needs the library libxml2. You might need to install libxml2 before building ROOT

Best regards