# How to install the GENIE neutrino event generator on thpc09
# -----------------------------------------------------------

# Make sure libg2c is properly installed. I needed to do
cd ~/software/installed/lib
ln -s libg2c.so.0 libg2c.so

# Download LHAPDF (http://www.hepforge.org/downloads/lhapdf) and build it:
FC=gfortran-4.5.1 ./configure --prefix=/home/jkopp/software/installed/
make
make install

# Download LHAPDF PDF sets, make sure GRV98lo and GRV98nlo are included
lhapdf-getdata CTEQ6ll CTEQ66 lomod MCal GRV98*
#  or
lhapdf-getdata --all

# Download and build log4cpp (http://sourceforge.net/projects/log4cpp/files/)
./configure --prefix=/home/jkopp/software/installed/
make
make install

# (Re-)compile root with Pythia6 support
./configure --build=debug --enable-pythia6 \
            --with-pythia6-libdir=/scratch/jkopp/software/pythia6/v6_412/lib/ \
            --etcdir=/home/jkopp/software/installed/etc \
            --prefix=/home/jkopp/software/installed/ \
            --with-cc="gcc-4.5.1" --with-f77=gfortran-4.5.1 --with-cxx=g++-4.5.1
# Make sure that root reads its configuration file (system.rootrc or ~/.rootrc),
# and that the plugin path set in there is correct. In particular, make sure
# that the command
#   gROOT->GetPluginManager()->FindHandler("TVirtualTreePlayer")
# does not return NULL

# Copy or link Pythia libraries to a place where GENIE can find them
cp /scratch/jkopp/software/pythia6/v6_412/lib/* ~/software/installed/lib

# Download and build GENIE
mkdir genie
svn co https://svn.hepforge.org/genie/branches/R-2_6_0 .
export GENIE=$(pwd)
./configure --prefix=/home/jkopp/software/installed/ \
            --enable-debug \
            --enable-atmo \
            --enable-viewer \
            --enable-test \
            --enable-vle-extension \
            --enable-vhe-extension \
            --with-lhapdf-lib=/home/jkopp/software/installed/lib/ \
            --with-lhapdf-inc=/home/jkopp/software/installed/include/ \
            --with-pythia6-lib=/scratch/jkopp/software/pythia6/v6_412/lib/
gmake
gmake install

# To run GENIE, define
export LHAPATH=$HOME/software/installed/share/lhapdf/PDFsets/
export GENIE=/scratch/jkopp/software/genie/