Hi, I observed the same when moving from G4.3.2 to G4.4.0. You find the reason for that behaviour in the system specific config file geant4.4.0/config/sys/Linux-g++.gmk (I suppose you are also using Linux), lines 7 and 8. In the new version, the options -ansi and -pedantic are used in addition. Obviously, there is something in the ROOT header file, TMath.h, which is not completely ansi compliant. If you comment out line 7 and use line 8 instead, everything will compile as before. Best regards, Volker -- Dr. Volker Hejny Tel: 02461/616853 ** Institut f. Kernphysik Fax: 02461/613930 ** ---------------------------------------------------------------- ** ** --- Forschungszentrum Juelich GmbH, D-52425 Juelich **
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