Problem when compiling programs

Hello,everyone.

     I have installed ROOT(from the source code) on Fedora7. And everytime I want to compile sth. with the root lib, gcc complains a bunch of "undefined reference" in almost every .so lib file. And even a regular operation like "&" (gett the address) couuld rreturen an inlegal pointer.

    My gcc version is gcc4.1.2,and configured with:   ../configure --prefix=/usr --mandir=/usr/share/man

--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada
--enable-java-awt=gtk --disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre
--enable-libgcj-multifile --enable-java-maintainer-mode
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-cpu=generic
--host=i386-redhat-linux

and I compiled ROOT5.15.08 with this gcc. Has any one encountered problems like this? Any help will be appreciated:)

     for example, with this command to try to compile one program with gcc,the output could be like this:(all the varibers have been defined appropriately)

     ./g++ -o .$EXE $CXX -I${ROOTSYS}/include -I/usr/include/g++/

-I${CLASSDIR}/HParticle -L${ROOTSYS}/lib -lCint -lCore  -lHist -lMatrix
-lPhysics -lTree -lEG -lRint  -lm -ldl -L${CLASSDIR}/HParticle
-lHParticle -L${CLASSDIR}/TField -lTField
 

and it reports like this:

    /cern/root/lib/libTree.so: undefined reference to `TBufferFile::WriteArray(int const*, int)'
/cern/root/lib/libTree.so: undefined reference to
`TStreamerInfo::GetValueClones(TClonesArray*, int, int, int, int) const'
/cern/root/lib/libTree.so: undefined reference to
`TBufferFile::ReadArray(float*&)'
/cern/root/lib/libTree.so: undefined reference to `TKey::Browse(TBrowser*)'
/cern/root/lib/libTree.so: undefined reference to
`TBufferFile::WriteArray(double const*, int)'
/cern/root/lib/libTree.so: undefined reference to
`TBufferFile::ReadStaticArray(long long*)'
/cern/root/lib/libTree.so: undefined reference to
`TKey::SetParent(TObject const*)'
/cern/root/lib/libEG.so: undefined reference to
`TPaveText::TPaveText(double, double, double, double, char const*)'
/cern/root/lib/libTree.so: undefined reference to
`TBufferFile::ReadStaticArray(long*)'
/cern/root/lib/libTree.so: undefined reference to `typeinfo for TBufferFile'
collect2: ld returned 1   Received on Wed Jun 27 2007 - 09:33:08 CEST