When you link your program, you must specify the list of Root libraries (-L$ROOTSYS/lib -lRoot -lCint) as shown in the page http://root.cern.ch/root/Availability.html Rene Brun William Hamish Bell wrote: > > Hi, > > I have constructed a very simplistic C file which as far as the code goes > runns perfectly under the interpreter. Then I add the needed header > files: > > #include "TFile.h" > #include "TNtuple.h" > #include "TObject.h" > #include "TStorage.h" > > and use the command xlC -w -O -I$ROOTSYS/include -I/usr/lpp/xlC/include > -I/usr/include write_ntuple_prog.C > > The result of this is that I receive the errors: > > ld: 0711-317 ERROR: Undefined symbol: TObject::operator delete(void*) > ld: 0711-317 ERROR: Undefined symbol: .TStorage::ObjectAlloc(unsigned long) > ld: 0711-317 ERROR: Undefined symbol: .TNtuple::TNtuple(const char*,const > char*,const char*,int) > ld: 0711-317 ERROR: Undefined symbol: .TFile::TFile(const char*,const > char*,const char*,int) > > What should I do to rubish the afore mentioned annoyances? > > Regards, > > Will > > ____________________________________ > > William Hamish Bell > > Department of Physics and Astronomy, > University of Glasgow, > Glasgow, > G12 8QQ > Scotland > > ____________________________________
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