I’ve generated a TSelector from a TTree, now I want to use it (without proof).
The problem is that when I try to link:
g++ -g -O2 -fPIC -Wall -pthread -m64 -I/gpfs/storage_4/users/home/proof/root/include -L/gpfs/storage_4/users/home/proof/root/lib -lCore -lCint -lRIO -lNet -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lMathCore -lThread -pthread -lm -ldl -rdynamic -lProof -L/gpfs/storage_4/users/home/proof/root/lib -lCore -lCint -lRIO -lNet -lHist -lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lMathCore -lThread -lGui -pthread -lm -ldl -rdynamic -o ../EnergyRecoAthena EnergyRecoAthena.o EnergyReconstructionAthena.o [...] base_selectors/NtupleSelector.o
I get
base_selectors/NtupleSelector.o: In function `NtupleSelector::IsA() const':
/users2/turra/cal/calibration/src/base_selectors/NtupleSelector.h:522: undefined reference to `NtupleSelector::Class()'
base_selectors/NtupleSelector.o:(.data.rel.ro._ZTV14NtupleSelector[vtable for NtupleSelector]+0x1d0): undefined reference to `NtupleSelector::ShowMembers(TMemberInspector&)'
base_selectors/NtupleSelector.o:(.data.rel.ro._ZTV14NtupleSelector[vtable for NtupleSelector]+0x1d8): undefined reference to `NtupleSelector::Streamer(TBuffer&)'
collect2: ld returned 1 exit status
make: *** [../EnergyRecoAthena] Error 1
line 522 is
ClassDef(NtupleSelector,0);
the source code may be very simple as:
#include "NtupleSelector.h"
int main()
{
NtupleSelector *data = new NtupleSelector();
}