#! /bin/sh -
#$Id: configure,v 1.3 2006/06/20 09:35:06 kmura Exp $
# ======================================================================
#  A configure script for Geant4Py
# ======================================================================
export LANG=C

IFS='
 	'
PATH=/bin:/usr/bin
export PATH

# ======================================================================
# help message
# ======================================================================
show_help() {
cat <<EOF
\`configure' configures Geant4Py to adapt to many kinds of systems.

Usage:  ./configure SYSTEM [OPTION]... [VAR=VALUE]...

SYSTEM: System type (see Supported Arhitectures)

Options:
  -h, --help                Display this help and exit

Installation directories:
  --prefix=PREFIX           Installation prefix  [./]
  --libdir=DIR              Python modules installaion dir [PREFIX/lib]
  --incdir=DIR              Header installaion dir [PREFIX/include]

Fine tuning of the library path:
  --with-g4-incdir=DIR      Geant4 header dir [\$G4INCLUDE]
  --with-g4-libdir=DIR      Geant4 library dir [\$G4LIB/\$G4SYSTEM]
  --with-g4-version=NUM     Geant4 version (700/701/710/711)
                            Not required after ver.8.0

  --with-clhep-incdir=DIR   CLHEP header dir [\$CLHEP_INCLUDE_DIR]
  --with-clhep-libdir=DIR   CLHEP library dir [\$CLHEP_LIB_DIR]
  --with-clhep-lib=LIB      library name of libCLHEP.so [CLHEP|\$CLHEP_LIB]

  --with-python-incdir=DIR  Python header dir [/usr/include/python],
                            (location of pyconfig.h)
  --with-python-libdir=DIR  Python library dir [/usr/lib]

  --with-boost-incdir=DIR   BOOST-C++ header dir [/usr/include],
                            (location of boost/)
  --with-boost-libdir=DIR   BOOST-C++ library dir [/usr/lib]
  --with-boost-python-lib=LIB library name of libboost_python.so [boost_python]

  --with-package-dir=DIR    Geant4 Package dir

Enable/disable options: prefix with either --enable- or --disable-
  openglx      OpenGLX support    [auto]
  openglxm     OpenGLXm support   [disable, \$G4VIS_USE_OPENGLXM]
  raytracerx   RayTracerX support [disable, \$G4VIS_USE_RAYTRACERX]

Supported Architectures:
  linux           for Linux gcc 3.x and 4.x
  linuxx8664gcc   for AMD Opteron and Intel EM64T Linux gcc 3.x and 4.x
  macosx          for MacOS X with gcc (test)

EOF
}

# ======================================================================
# main
# ======================================================================
# input
arguments="$@"

# default values
prefix=`pwd`
current_dir=`pwd`

g4_incdir=${G4INCLUDE:-/zzz}
g4_libdir=${G4LIB:+$G4LIB/$G4SYSTEM}
g4_libdir=${g4_libdir:-/zzz}
g4_version=${G4VERSION_NUMBER:-auto}

clhep_incdir=${CLHEP_INCLUDE_DIR:-/zzz}
clhep_libdir=${CLHEP_LIB_DIR:-/zzz}
clhep_lib=${CLHEP_LIB:-CLHEP}

python_incdir=/usr/include/python
boost_incdir=/usr/include
boost_python_lib=boost_python

enable_openglx=1
enable_openglxm=${G4VIS_USE_OPENGLXM:+1}
enable_openglxm=${enable_openglxm:-0}
enable_raytracerx=${G4VIS_USE_RAYTRACERX:+1}
enable_raytracerx=${enable_raytracerx:-0}


# checking system
case $1 in
  linux|linuxx8664gcc|macosx)
    system=$1
    echo -n "Checking for system type ... "
    if [ ! -e "config/sys/$system.gmk" ]; then
      echo "no"
      echo -n "### Invalid system type. "
      echo "Please taka a look in config/sys/."
      exit -1
    fi
    echo "$system"
    ;;
  --help|-h)
    show_help
    exit 0
    ;;
  *)
    echo "Error: System type is not specified or more than one system type. "
    echo ""
    echo "Usage:  ./configure SYSTEM [OPTION]... [VAR=VALUE]..."
    echo ""
    exit -1
    ;;
esac
shift

# parsing options
while test $# -gt 0
do
  case $1 in
    -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
    *) optarg= ;;
  esac

  case $1 in
    --help|-h) show_help;  exit 0 ;;
    # ---------------------------------------------------------------
    --prefix=*)                prefix=$optarg                    ;;
    --libdir=*)                libdir=$optarg                    ;;
    --with-package-dir=*)      g4_incdir=$optarg/include/Geant4
                               g4_libdir=$optarg/lib
                               clhep_incdir=$optarg/include
                               clhep_libdir=$optarg/lib          ;;
    --with-g4-incdir=*)        g4_incdir=$optarg                 ;;
    --with-g4-libdir=*)        g4_libdir=$optarg                 ;;
    --with-g4-version=*)       g4_version=$optarg                ;;
    --with-clhep-incdir=*)     clhep_incdir=$optarg              ;;
    --with-clhep-libdir=*)     clhep_libdir=$optarg              ;;
    --with-clhep-lib=*)        clhep_lib=$optarg                 ;;
    --with-python-incdir=*)    python_incdir=$optarg             ;;
    --with-python-libdir=*)    python_libdir=$optarg             ;;
    --with-boost-incdir=*)     boost_incdir=$optarg              ;;
    --with-boost-libdir=*)     boost_libdir=$optarg              ;;
    --with-boost-python-lib=*) boost_python_lib=$optarg          ;;
    # ---------------------------------------------------------------
    --enable-openglx )         enable_openglx=1                  ;;
    --disable-openglx )        enable_openglx=0                  ;;
    --enable-openglxm )        enable_openglxm=1                 ;;
    --disable-openglxm )       enable_openglxm=0                 ;;
    --enable-raytracerx )      enable_raytracerx=1               ;;
    --disable-raytracerx )     enable_raytracerx=0               ;;
    # ---------------------------------------------------------------
    -*)
      echo "Unrecognized option: $1"
      exit -1
      ;;    
    *)
      echo "Invalid argument: $1"
      exit -1
      ;;    
  esac
  shift
done

# check variables
arch=32
if [ $system == linuxx8664gcc ]; then
  arch=64
fi

echo -n "Checking for prefix ... "
echo $prefix

echo -n "Checking for lib dir ... "

libdir=${libdir:-$prefix/lib}
echo $libdir

echo -n "Checking for include dir ... "
incdir=${incdir:-$prefix/include}
echo $libdir

echo -n "Checking for G4 include dir ... "
if [ ! -d "$g4_incdir" ]; then
  echo "no"
  echo -n "### $g4_incdir (g4-incdir) does not exist. "
  echo "Try --with-g4-incdir option."
  exit -1
fi
echo "$g4_incdir"

echo -n "Checking for G4 lib dir ... "
if [ ! -d "$g4_libdir" ]; then
  echo "no"
  echo -n "### $g4_libdir (g4-libdir) does not exist. "
  echo "Try --with-g4-libdir option."
  exit -1
fi
echo "$g4_libdir"

echo -n "Checking for G4 version ... "
case $g4_version in
  auto|700|701|710|711)
    echo "$g4_version"
    ;;
  *)
    echo "no"
    echo "### $g4_version (g4-version) is invalid (700/701/710/711)."
    exit -1
    ;;
esac

if [ "$g4_version" = "auto" ]; then
  if [ ! -f "$g4_incdir"/G4Version.hh ]; then
    echo "### G4Version.hh does not exist. Try --with-g4-version option."
    exit -1
  fi
fi

# ---
echo -n "Checking for CLHEP include dir ... "
if [ ! -d "$clhep_incdir" ]; then
  echo "no"
  echo -n "### $clhep_incdir (clhep-incdir) does not exist. "
  echo "Try --with-clhep-incdir option."
  exit -1
fi
echo "$clhep_incdir"

echo -n "Checking for CLHEP lib dir ... "
if [ ! -d "$clhep_libdir" ]; then
  echo "no"
  echo -n "### $clhep_libdir (clhep-libdir) does not exist. "
  echo "Try --with-clhep-libdir option."
  exit -1
fi
echo "$clhep_libdir"

echo -n "Checking for CLHEP lib name ... "
if [ ! -f "$clhep_libdir"/lib${clhep_lib}.so ]; then
  echo "no"
  echo -n "### lib${clhep_lib}.so (clhep-lib) does not exist. "
  echo "Try --with-clhep-lib option."
  exit -1
fi
echo "lib${clhep_lib}.so"

# ---
echo -n "Checking for Python include dir (pyconfig.h) ... "
if [ ! -f "$python_incdir"/pyconfig.h ]; then
  echo "no"
  echo -n "### $python_incdir (python-incdir) is invalid. "
  echo "Try --with-python-incdir option."
  exit -1
fi
echo "$python_incdir"

echo -n "Checking for Python lib dir ... "
if [ ! $python_libdir ]; then
  if [ $arch == 64 ]; then
    python_libdir=/usr/lib64
  else
    python_libdir=/usr/lib
  fi
fi
if [ ! -d "$python_libdir" ]; then
  echo "no"
  echo -n "### $python_libdir (python-libdir) does not exist. "
  echo "Try --with-python-libdir option."
  exit -1
fi
echo "$python_libdir"

# ---
echo -n "Checking for Boost include dir (boost/python.hpp) ... "
if [ ! -f "$boost_incdir"/boost/python.hpp ]; then
  echo "no"
  echo -n "### $boost_incdir (boost-incdir) is invalid. "
  echo "Try --with-boost-incdir option."
  exit -1
fi
echo "$boost_incdir"

echo -n "Checking for Boost lib dir ... "
if [ ! $boost_libdir ]; then
  if [ $arch == 64 ]; then
    boost_libdir=/usr/lib64
  else
    boost_libdir=/usr/lib
  fi
fi
if [ ! -d "$boost_libdir" ]; then
  echo "no"
  echo -n "### $boost_libdir (boost-libdir) does not exist. "
  echo "Try --with-boost-libdir option."
  exit -1
fi
echo "$boost_libdir"

echo -n "Checking for Boost Python lib name ... "
if [ ! -f "$boost_libdir"/lib${boost_python_lib}.so ]; then
  echo "no"
  echo -n "### lib${boost_python_lib}.so (boost-python-lib) does not exist. "
  echo "Try --with-boost-libdir option."
  exit -1
fi
echo "lib${boost_python_lib}.so"

# ---
echo -n "Checking for OpenGL support ..."
if [ -f "$g4_libdir"/libG4OpenGL.so ]; then
  if [ $enable_openglx == 0 ]; then
    echo "disabled"
  else
    echo "yes"
  fi
else
  echo "no"
  enable_openglx=0
fi

# ---
echo -n "Writing config.gmk ... "

make_config=config/config.gmk

cat > $make_config <<EOF
# config.gmk
#
# Automatically generated by configure script
#
# Makefile definitions included by the top Makefile

G4PY_INSTALL          := $current_dir

Q_SYSTEM              := $system

Q_PREFIX              := $prefix
Q_LIBDIR              := $libdir
Q_INCDIR              := $incdir

Q_G4_INCDIR           := $g4_incdir
Q_G4_LIBDIR           := $g4_libdir
EOF

if [ $g4_version != auto ]; then
cat >> $make_config <<EOF
Q_G4_VERSION          := $g4_version
EOF
fi

cat >> $make_config <<EOF

Q_CLHEP_INCDIR        := $clhep_incdir
Q_CLHEP_LIBDIR        := $clhep_libdir
Q_CLHEP_LIB           := $clhep_lib

Q_PYTHON_INCDIR       := $python_incdir
Q_PYTHON_LIBDIR       := $python_libdir
Q_BOOST_INCDIR        := $boost_incdir
Q_BOOST_LIBDIR        := $boost_libdir
Q_BOOST_PYTHON_LIB    := $boost_python_lib

Q_ENABLE_OPENGLX      := $enable_openglx
Q_ENABLE_OPENGLXM     := $enable_openglxm
Q_ENABLE_RAYTRACERX   := $enable_raytracerx

EOF
echo "done"
echo -n "Writing config.status ... "
echo $arguments > config.status
echo "done"

# ---
echo ""
echo -n "Enabled support for"
if [ $enable_openglx = 1 ]; then
  echo -n " openglx"
fi

if [ $enable_openglxm = 1 ]; then
  echo -n " openglxm"
fi

if [ $enable_raytracerx = 1 ]; then
  echo -n " raytracerx"
fi

echo "."

# ---
echo ""
echo "To build Geant4Py type:"
echo ""
echo "  make"
echo "  make install"
echo ""

exit 0