Thanks for all the suggestions. Since I am working on a project which has to finish fast I gave up on the patch branch … recompiling, etc. etc. did not help.
So finally I managed to get going again and here are my findings:
FindPYTHIA8.cmake does not find correctly installed pythia libraries. So I hardcoded them.
FindXROOTD.cmake does find first libraries from xrootd in an already deployed root installation instead of finding them where e.g. the XRDSYS environment variable points to. This is very annoying since one gets linker errors for “no reason” but wrongly associated includes with libraries.
… so in a few moments I hopefully have a fully linked new ROOT 6.06/08 installation.
Thanks again for your quick help and regards, Arno
What is for you ‘correctly installed’ pythia8 libraries? Where have you install them? Did you use the variable PYTHIA8_DIR or PYTHIA8? What is the error message you get from cmake?
This is strange since the environment variable XRDSYS has precedence. Can you please provide more information about your installation? Where is the ‘already deployed root installation’? Is this an old ROOT 5 version? What is the error message you get from cmake?