Hello, I was using a relative old ROOT version 6.04/16, and I encountered likely a library problem. The error message is MeasureScale: symbol lookup error: /sps/atlas/l/lguo/ATLAS_Calibration/ZeeScaleFactors/RootCoreBin/lib/x86_64-slc6-gcc49-opt/libTemplate.so: undefined symbol: _ZN12TTreeFormul…

Wile_E_Coyote April 27, 2020, 10:58am 4

Sounds like:

gSystem->Load() Vs. R__LOAD_LIBRARY with ACLiC ROOT

I have a library libABC.so which I want to use in a script which I run like so: root -x myscript.cxx+ In my .rootlogon.C, I have gSystem->Load("libABC.so"); Everything works as expect. But now, I don’t want to modify .rootlogon.C. Instead I want to use R__LOAD_LIBRARY inside the myscript.cxx like so: #include "ABC.h" R__LOAD_LIBRARY(libABC.so) This fails to link the library. How can I get same effect as having gSystem->Load("libABC.so") in rootlogon.C?

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Undefined symbol when excuting