I was using a program similar to the tutorials/tree/h1analysis.C,
which works OK with older versions of ROOT, for example with 5.14.00f.
But when I switch to a recent version, for example 5.18.00f or 5.21.02,
I can compile, but when I try to load this I get:
root  gSystem->Load("libRichRingAnalysis.so");
undefined symbol: _ZN9TSelector5AbortEPKcNS_6EAbortE
Failed to load Dynamic link library
I am guessing this means something changed in TSelector; is
there anything that I can do to avoid this problem?
(I am using cern lxplus:slc4_amd64_gcc34 and I attach an example make
file I used to compile this to create the .so file )
GNUmakefileStandAlone.txt (3.51 KB)