#!/bin/bash

if [ "$system" = "64bit" ];
then
  CXXFLAGS_BAK=$CXXFLAGS
  CXXFLAGS="$CXXFLAGS -m64"
  export CXXFLAGS
  export CFLAGS=$CXXFLAGS
fi

if [ "$make_install" = "yes" ]; 
then
  install_prefix=$SIMPATH_INSTALL
else
  install_prefix=$SIMPATH/transport/vgm
fi
checkfile=$install_prefix/lib/libBaseVGM.so

if (not_there VGM $checkfile);
then
  cd $SIMPATH/transport/vgm
  # Only patch vgm once
  if [ ! -f patched ]; then
    cp ../vgm_cmake.tar.gz .
    tar zxf vgm_cmake.tar.gz && touch patched
    echo "Patch CMake stuff"
  fi
  mkdir build_cmake
  cd build_cmake

  if [ "$make_install" = "yes" ]; 
  then
    cmake ..  -DCLHEP_DIR=$SIMPATH_INSTALL -DWITH_GEANT4=ON -DGEANT4_DIR=$SIMPATH_INSTALL -DWITH_ROOT=ON -DROOT_DIR=$SIMPATH_INSTALL -DWITH_TEST=OFF -DCMAKE_INSTALL_PREFIX=$install_prefix
  else
    cmake ..  -DCLHEP_DIR=$SIMPATH/cern/clhep/ -DWITH_GEANT4=ON -DGEANT4_DIR=$SIMPATH/transport/geant4/  -DWITH_ROOT=ON -DROOT_DIR=$SIMPATH/tools/root -DWITH_TEST=OFF -DCMAKE_INSTALL_PREFIX=$install_prefix
  fi

  make 
  make install
 
  if [ "$platform" = "macosx" ];
  then 
      cd $install_prefix/lib
      create_links dylib so
  fi

  check_success VGM $checkfile
  check=$?

  check_all_libraries $install_prefix/lib

fi

if [ "$platform" = "macosx" ];
then
  export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH:$install_prefix/lib
else
  export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$install_prefix/lib
fi

export USE_VGM=1
export VGM_INSTALL=$install_prefix

if [ "$system" = "64bit" ];
then
  CXXFLAGS=$CXXFLAGS_BAK
  export CXXFLAGS
  export CFLAGS=$CXXFLAGS
fi

cd $SIMPATH

return 1