Omer,
I tried to find the source code repository for the package in order to try to share my contributions to upgrade cling to 0.3 but I could not find it. If it doesn't exist can you please create one, preferably under the pypy project in Bitbucket?
the current version still has some dependencies left on ROOT: I thus used a stripped-down version of it, mostly by removing sub-directories, but also by trimming the modules (such as IO) that are still needed. I then added the cppyy cxx sources from the PyPy repo. The Cling standalone release is not yet used. The numbering of 6.6.9 in PyPi refers to ROOT 6.06/09, so it's a release behind current. I don't know whether current solves the compilation issues, though, and I don't know whether standalone cling easily drops in there. Best regards, Wim -- WLavrijsen@lbl.gov -- +1 (510) 486 6411 -- www.lavrijsen.net