Ok, thanks. Maybe the documentation should contain something about building from source. The diff I posted is just what changed in that file between the versions. I thought that maybe you could recognize what went wrong and why rootcling is not a valid target. בתאריך יום ד׳, 7 ביוני 2017 ב-18:44 מאת <wlavrijsen@lbl.gov>:
Omer,
in response to your last mail, I started a script to strip ROOT and build the package. Will get to that and that should refresh my memory enough to see what is going on (I don't remember having to make the changes that you posted in the diff, but that may be just my (lack of) memory).
In your case, I'd recommend to simply build ROOT using '-Dminimal=ON' as an argument to cmake, which will already greatly reduce things. Then build the cling wrapper from the PyPy repository (is a single .cxx) following its make fragment. That should be enough: with the .so's in place, PyPy's cppyy should work out-of-the-box.
Best regards, Wim -- WLavrijsen@lbl.gov -- +1 (510) 486 6411 <+1%20510-486-6411> -- www.lavrijsen.net