[ROOT] [root 3.03/09 and alphacxx6] multiply defined while building .so

From: François Mauger (mauger@caelav.in2p3.fr)
Date: Fri Feb 14 2003 - 15:51:24 MET 

Hi, I'm François Mauger (IN2P3/Université of Caen),

    I'm a newbie with root (but not with C++).
    Some colleagues and I aim to write a complete final
    analysis framework for the DBD NEMO-3
    experiment (NEAT: NEMO-3 Analysis Toolkit
    -- I know, this name is not very original!)
    Archs i use now are: alphacxx6 and linux (g++ 2.95-3.xx)

My problem now:

I wrote some classes "TNEATxxx(.h)(.C)".
I get the "TNEATxxx.o"s it's ok!
I autogenerate (via Gnu/make) the following LinkDef.h:

#ifdef __CINT__
#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;
#pragma link C++ class TNEAT+;
#pragma link C++ class TNEATEvent+;
...
#pragma link C++ class TNEATRunInfo+;
#endif

I then compile the "TNEAT***_Dict(.h)(.C)" files... maybe ok (not sure!)
at least with no error nor warn messages!

When I try to build my "libNEATrawdata.so" library
I get "multiply defined" errors, see the following dump:

cxx -Wl,-expect_unresolved,* -shared -O \
  lib/TNEAT.o lib/TNEATEvent.o ... lib/TNEATRunInfo.o \
  dict/TNEAT_Dict.o dict/TNEATEvent_Dict.o ... dict/TNEATRunInfo_Dict.o \
  -o  ./lib/libNEATRawData.so
ld (prelink):
dict/TNEATEvent_Dict.o compressed: __T_5TNEAT: multiply defined
dict/TNEATEvent_Dict.o compressed: __vtbl_5TNEAT: multiply defined
dict/TNEATEvent_Dict.o compressed: TNEAT::ShowMembers(TMemberInspector&,
char*): multiply defined
dict/TNEATEvent_Dict.o compressed: TNEAT::Streamer(TBuffer&): multiply
defined
...
then tons of "multiply def"

There is probably something that I don't understand in the rootcint
mechanism ;-(
Is there a special order to use while building the whole stuff?
How can I automate the right order if any?
I hope my questions make sense!

Any hint to help me!

Thanks
frc
--
François Mauger
Laboratoire de Physique Corpusculaire de Caen et Université de Caen
ENSICAEN/ISMRA - 6, Boulevard du Marechal Juin, 14050 CAEN Cedex, FRANCE
e-mail: mauger@caelav.in2p3.fr
tel.: (0/+33) 2 31 45 25 12
fax: (0/+33) 2 31 45 25 49
internet: http://www.physique.unicaen.fr/~fmauger/

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