[Clas_offline] compile with ROOT on 64

[fxgirod at jlab.org]

Dear all,

I have difficulties to compile my code on ifarml64 when using ROOT from
ROOTSYS either /site/root/5.24/Linux_CentOS5.3-x86_64-gcc4.1.2
or
/site/root/5.26/Linux_CentOS5.3-x86_64-gcc4.1.2

The linking with shared objects gives me multiple undefined references for
libTree.so at the execution of :

gcc -o BinVol BinVol.o
-L/site/root/5.26/Linux_CentOS5.3-x86_64-gcc4.1.2/lib -lCore -lCint -lHist
-lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lm
-ldl -lnsl  -L./

I also tried to load from
/site/root/5.26/Linux_CentOS5.3-x86_64-gcc4.1.2/root/lib
instead, as well as various other combinations, but I am a bit confused
now. Did somebody manage to compile with libTree.so on 64 recently ?

Thank you in advance for hints.

Best regards,
Francois