Dear Rene, According to your root page I have compiled gh2root.f in linux machine and then I have given the following command to convert Zebra FZ file to root class: gh2root geantfile.geom X 900 As a result, the executable gh2root is running and at the end it gave the follwing messege: " FZIN. LUN= 3 End of Run 0 i= 0 quest(1)= 2 nuhead= 0 head1=**** head2=**** head3=END2 file:XRun.h has been generated file:XMaker.cxx has been generated jset= 0 GEANT file: geantfile.geom converted to ROOT classes: Xxxx" It has also created LinkDef.h and Make-macros but there are zero bytes in those files as -rw-r--r-- 1 tghosh rhphenix 0 Jun 1 16:23 LinkDef.h -rw-r--r-- 1 tghosh rhphenix 6553 Jun 2 23:48 XMaker.cxx -rw-r--r-- 1 tghosh rhphenix 2278 Jun 2 23:48 XRun.h -rw-r--r-- 1 tghosh rhphenix 0 Jun 1 16:23 Make-macros but I do not see that it has made any XsetdetMaker.h and cxx and also it did not make any root macros as in the documentation you said : " * Some Root macros are also generated by gh2root: * - fake.C : to generate random particles and hits. * - run.C : to convert a Geant FZ file into Root. * - browse.C : to browse a Root file with hits. * - analyze.C : example of analysis code to loop on * generated events and make histograms." So could you please suggest me what is going wrong here or do I need to change anywhere inside gh2root.f? although I assume that gh2root is a general program for any FZ file to convert it into root tree! best regards, Tarun
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