When I load a custom built library
gSystem -> Load("/afs/cern.ch/work/v/vveckaln/private/CompoundHistoLib/lib/libCompoundHisto.so")
I get an error related to the TMatrixTBase class:
undefined symbol: _ZN12TMatrixTBaseIdE4DrawEPKc
Any ideas what is at the heart of this issue?
The output from c++filt _ZN12TMatrixTBaseIdE4DrawEPKc
suggests that you first need to: gSystem->Load("libMatrix");
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That solved the problem.
It would be nice if all class references
(such as https://root.cern.ch/root/html604/TMatrixTBase_double_.html)
referred to additional libraries that need to be loaded.
TMatrixTBase< Element > Class Template Reference
grep TMatrixTBase `root-config --libdir`/*.rootmap
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I am curious what are the files with the extension .rootmap?
system
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