v6-20-02-alice6
Invert opt noGlobalUsingStd(def=false) to globalUsingStd(def=false) With this patch the rootcling option noGlobalUsingStd (by default off) preventing declaration of {using namespace std} in the global scope is inverted to option globalUsingStd(def=false) which allow to declare using std. Therefore, by default the pollution of the global scope will be forbidden but optionally can be requested.