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    • ROOT system installation and update
      Computer/linux 2008. 12. 20. 07:12
      The ROOT system is an object-oriented Data Analysis Framework.

      http://root.cern.ch

      OS: Ubuntu 8.04 / RHEL 5.3
      GCC : gcc version 4.2.4 (Ubuntu 4.2.4-1ubuntu3) / gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)

      Some useful reference  is http://root.cern.ch/twiki/bin/view/ROOT/SubversionHowto

      1. Check the web site of ROOT system http://root.cern.ch/svn/root/tags/
      http://root.cern.ch/viewcvs/tags/
        and decide one version that I want to install.

      2. For example, v5-22-00.

        cd $HOME/programs/
        svn co http://root.cern.ch/svn/root/tags/v5-22-00 root.5.22

        root.5.22 is a local directory name and will be created by svn.


      3.
      cd $HOME/programs

      Since I want to use a general directory name for ROOT system, thus
      I create a symbolic link. Thus, my ROOT directory is
      $HOME/programs/root/. N.B. if the file system is a fat32, symbolic links
      cannot be created.

      ln -s root.5.22 root

      ln -s root.5.26a root


      4. When I install a fresh ROOT system on my Linux, make sure to install proper packages by using.. 

      ubuntu 8.04

      apt-get install libjpeg62-dev libtiff4-dev  libxml2-dev libssl-dev libgnutls-dev libgmp3-dev libxmu-dev libpng12-dev libldap2-dev libkrb5-dev freeglut3-dev libxmu-dev fftw3 fftw3-dev  python-dev   libmysqlclient15-dev libgif-dev libungif4-dev libiodbc2 libiodbc2-dev

      Debian 6 squeeze
      apt-get install  comerr-dev freeglut3-dev krb5-multidev libfftw3-dev libgif-dev \
        libgl1-mesa-dev libglu1-mesa-dev libgmp3-dev libgmpxx4ldbl libiodbc2\
        libiodbc2-dev libkrb5-dev libldap2-dev libmysqlclient-dev libssl-dev\
        libtiff4-dev libtiffxx0c2 libxmu-dev libxmu-headers libxt-dev\
        mesa-common-dev libxpm-dev libpq-dev  libxft2 libxft-dev libgsl0-dev


      5. set or change ROOTSYS to the your `root' directory:
      5.1 First installation,

       export ROOTSYS=$HOME/softwares/root

       setenv ROOTSYS $HOME/softwares/root


         GOTO 6.

      5.2 Update or new version
       
          5.2.1 Deactivate other export lines of ROOT system in ".bash_export" or ".bashrc" file
          #
          # ROOT path configuration
          #
          #    export ROOTSYS=$HOME/programs/root
          #    export PATH=$ROOTSYS/bin:$PATH
          #    export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH

          5.2.2 Restart a xterm, and go to $HOME/programs/root
          5.2.3 Check the the ROOT path is empty by echo $ROOTSYS

          GOTO 6.

      6.
      ./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml

      ./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml --enable-pgsql --enable-mysql

       or

      ./configure linuxx8664gcc  --enable-mysql --enable-roofit --enable-table --enable-gdml --enable-minuit2


      make


      7.
      7.1 First installation,
         Add the following paths in ".bash_export" or ".bashrc" file
           export ROOTSYS=$HOME/programs/root/
           export PATH=$ROOTSYS/bin:$PATH
           export LD_LIBRARY_PATH=$ROOTSYS/lib:$LD_LIBRARY_PATH

      Add the following paths in ".tcshrc" file
      setenv HOME_PROGRAMS ${HOME}/programs
      setenv ROOTSYS /opt/root
      setenv PATH ${ROOTSYS}/bin:${PATH}
      setenv LD_LIBRARY_PATH ${ROOTSYS}/lib:${LD_LIBRARY_PATH}



      7.2 Update or new version
       
          7.2.1 Set ROOTSYS in current xterm
      export ROOTSYS=$PWD
      setenv ROOTSYS $PWD
          7.2.2 Configure and make
          7.2.3 add the new ROOTSYS in bashrc or tcshrc

      8.          Open a new xterm, type root
        

      update revision
      • cd $HOME/programs/root.5.22
      • svn up
      • cd $HOME/programs/root
      • ./configure linux --enable-minuit2 --enable-roofit --enable-table --enable-gdml
      • make



      svn info




      On 64 bit machine, I failed to compile with the following message :

      /usr/lib64/libgslcblas.a: could not read symbols: Bad value

      Then rerun the following command

      ./configure linuxx8664gcc  --enable-roofit --enable-table --enable-gdml --enable-minuit2 --enable-gsl-shared

      make


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