#! /bin/bash

#Package-specific:>

# === Default values of input parameters ====
ROOTSYS=
COMPMODE=OPT        # Default: compiler optimization mode

#--------------------------------------------------------------

check_arguments () {
  for arg in $* ; do
    if   [ "x$arg" = "x--enable-debug" ] ; then
      COMPMODE=DBG
    elif [ "x$arg" = "x--help" ] ; then
      echo -e \
      "\nUsage: ./configure [options] , where options are:\n\n"\
      "--help                       : prints this help\n"\
      "--rootdir=[full directory path]      : specifies location of ROOT base directory (ROOTSYS)\n"\
      "--enable-debug               : turns on debugging flags\n"
      exit
    else
      if [ "x${arg}" = "x${arg/=/}" ] ; then
        echo "${arg}: wrong option. Ignored." >&2
      else
        option=${arg/=*/}
        value=${arg/*=/}
	if [ "x${option}" = "x--rootdir" ] ; then
	    ROOTSYS=${value}
	else
	  echo "${arg}: wrong option. Ignored." >&2
	fi
      fi
    fi
  done
  return
}
		
#--------------------------------------------------------

set_rootvars() {

    # Check that the ROOTSYS variable is set
    if [ -z ${ROOTSYS} ] ; then
	ROOTSYS=`root-config --prefix`
    fi

    echo "ROOTSYS set to ${ROOTSYS}"

    ROOTCFLAGS=`${ROOTSYS}/bin/root-config --cflags`
    ROOTLIBS=`${ROOTSYS}/bin/root-config --libs`
    ROOTGLIBS=`${ROOTSYS}/bin/root-config --glibs`

}

#--------------------------------------------------------

check_arguments $* 
set_rootvars

echo  "Compilation mode is ${COMPMODE}"

echo -n "Creating extraConfig.mk ... "

rm -f extraConfig.mk 

cat > extraConfig.mk << EOT

# Set ROOT environment variables
ROOTSYS = ${ROOTSYS}
ROOTCFLAGS = ${ROOTCFLAGS}
ROOTLIBS = ${ROOTLIBS}
ROOTGLIBS = ${ROOTGLIBS}
#<
EOT

echo " done"

echo -e  "\n\nType 'make' to build everything or 'make help' to list build targets.\n\n"

exit