[ROOT] Problem of compilation

From: therin (therin@lpnhep.in2p3.fr)
Date: Thu Sep 12 2002 - 19:13:59 MEST 

Hi, I write for a problem of compilation.
Firstable, I arrived to compile the files which are in the repertory
/root/test/ with ROOT 3.03/03. But when I want to compile a file c++
construct from a NTuple and MakeClass function (ntp1.C), it doesn't
work. The message error is :

g++ -O -Wall -fPIC -D_REENTRANT -I/usr/local/root/new/root/include -c
ntp1.C
g++ -O  ntp1.o -L/usr/local/root/new/root/lib -lCore -lCint -lHist
-lGraf -lGraf3d -lGpad -lTree -lRint -lPostscript -lMatrix -lPhysics -lm
-ldl -lpthread -rdynamic  \
           -o ntp1
ntp1.o: In function `ntp1::ntp1(TTree *)':
ntp1.o(.text+0x5d): undefined reference to `TFile::TFile(char const *,
char const *, char const *, int)'
collect2: ld returned 1 exit status
make: *** [ntp1] Error 1

With Cint, I can execute ntp1.C without problems. I added to verify in
ntp1.C :

int main(int argc,char **argv)
{
 ntp1 j;
 j.Loop();
}

I hope you can tell me what is going wrong.

Thanks for your help.

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