#!/bin/zsh 

echo "This script requires a gcc compiler suite"
if [ $# -eq 0 ]; then
  ERROR=1
elif [ "$1" = "" ]; then
  ERROR=1
fi
if [ "$ERROR" = "1" ]; then
cat <<EOM
Usage: $(basename $0) progname (= chbook-example, chigz-example, ...)
EOM
exit 1
fi


typeset CERN=$PWD/../../../../
typeset CERN_LEVEL=2005
typeset CERNLIB=$CERN/$CERN_LEVEL
export CERN
export CERN_LEVEL

# check for compiler version
cat > comptest.F <<EOF
      program comptest
      a = 0
      end
EOF
GCCVSN=`cpp -dM comptest.F | grep __VERSION__ | cut -d" " -f3 | cut -c 2`
rm -f comptest.*
FTNLIB=" "
if [ "$GCCVSN" = "3" ]; then
  FTNLIB="-lg2c"
elif [ "$GCCVSN" = "4" ]; then 
  FTNLIB="-lgfortran"
else
  echo "Unsupported compiler suite"
fi

# check for minuit test
if [ "$1" = "minuit-main" ]; then
  if [ $# -ne 2 ]; then
    ERROR=1
  elif [ "$2" = "" ]; then
    ERROR=1
  fi
  if [ "$ERROR" = "1" ]; then
  cat <<EOM
Usage: $(basename $0) $1 minuit-fcn.c
or
Usage: $(basename $0) $1 minuit-fcn.f
EOM
  exit 1
  fi
  rm -rf run
  echo "creating a run subdirectory"
  mkdir -p run
  cd run
  EXTNAME=""
  [ "$2" = "minuit-fcn.f" ]&&EXTNAME="-DEXTNAME"
  gcc -c -I$CERNLIB/include -I$CERNLIB/include/cfortran -I$CERNLIB/include/hbook -g -fmessage-length=0 -fPIC \
      -DCERNLIB_LINUX -DCERNLIB_UNIX -DCERNLIB_LNX -DCERNLIB_QMGLIBC -DCERNLIB_QMLXIA64 \
      ../$2
  gcc -c -I$CERNLIB/include -I$CERNLIB/include/cfortran -I$CERNLIB/include/hbook -g -fmessage-length=0 -fPIC \
      -o $1.o -DCERNLIB_LINUX -DCERNLIB_UNIX -DCERNLIB_LNX -DCERNLIB_QMGLIBC -DCERNLIB_QMLXIA64 \
      $EXTNAME \
      ../$1.c 
  gcc  -g -o $1.c.exe $1.o minuit-fcn.o `$CERNLIB/bin/cernlib pawlib graflib/X11 packlib mathlib kernlib` $FTNLIB

  echo "executing $1.c.exe in the run subdirectory"
  echo " "
  ./$1.c.exe

else

# all other tests
  rm -rf run
  echo "creating a run subdirectory"
  mkdir -p run
  [ "$1" = "pamain" ]&&cp pawex1.kumac ./run
  cd run
  gcc -c -I$CERNLIB/include -I$CERNLIB/include/cfortran -I$CERNLIB/include/hbook -g -fmessage-length=0 -fPIC \
      -o $1.o -DCERNLIB_LINUX -DCERNLIB_UNIX -DCERNLIB_LNX -DCERNLIB_QMGLIBC -DCERNLIB_QMLXIA64 \
      ../$1.c
  gcc  -g -o $1.c.exe $1.o `$CERNLIB/bin/cernlib pawlib graflib/X11 packlib mathlib kernlib` $FTNLIB

  echo "executing $1.c.exe in the run subdirectory"
  [ "$1" = "chigz-example" ]&&echo "this requires additional '<return>' and 'q <return>' from your terminal"
  [ "$1" = "pamain" ]&&echo "this requires additional '<return>' and 'exec pawex1.kumac <return>' and 'q <return>' from your terminal"
  [ "$1" = "chplot-example" ]&&echo "this requires an additional 'q <return>' from your terminal"
  echo " "
  ./$1.c.exe > $1.c.log
  echo "check for output if any the run subdirectory"

fi