root and cernlib

Thierry Auger (auger@jlab.org)
Thu, 28 May 1998 22:45:48 -0400

Hi all,
I have created a root interface on Sun for a fortran package which does use
some cernlib calls( atg,prob,reqn). I produce a shared library to dynamically
load my application. When I try to run it from the interactive session, it
doesn't find the cernlib functions and dies saying :

root [0] gSystem->Load("libkinfit.so")
root [1] TKinfit t
root [2] t.Test()
DIAGNOSTIC OUTPUT - NY,NF,ND = 10, 4, 4
0VAR. PULL ERROR CORRELATION MATRIX
1 0.00 0.1000E-04 1.00
2 0.00 0.4000E-04 0.00 1.00
3 0.00 0.4000E-04 0.00 0.00 1.00
ld.so.1: ./root.exe: fatal: relocation error: symbol not found: prob_:
referenced in /home/auger/ANALYSE/src/lib/libkinfit.so
Killed

I tried Rene's suggestion (roottalk feb 25 98) to compile my own root with
statements like this: extern "C" Double_t denlan_(Double_t x); for each
cernlib function I use. But it still crashes so I don't know what I am doing
wrong. How could I have the cernlib object code included into root?

Thierry Auger.
auger@cebaf.gov