#!@SHELL@

BIN_DIR=@BINDIR@

SML=$BIN_DIR/sml
LINK=$BIN_DIR/.link-sml

thisscript=$0

xx=$$
smlfile=$xx-export.sml
cmfile=$xx-export.cm
listfile=$xx-BOOTLIST

dulist=''

trap 'rm -rf `find . -name $smlfile` $cmfile $listfile' 0 1 2 3 15

usage() {
    echo ${thisscript}: $*
    echo Usage: $thisscript root-group main-function heapfile
    exit 1
}

while [ $# != 0 ] ; do
    case $1 in
    -D*|-U*)
	dulist="$dulist $1"
	shift
	;;
    *)
	break
	;;
    esac
done

if [ $# != 3 ] ; then
    usage wrong number of arguments
fi

root=$1
main=$2
heap=$3

rare=XYZ_XXX_0123

cat >$smlfile <<EOF
structure ${rare} = struct val _ = SMLofNJ.exportFn ("${heap}", ${main}) end
EOF

cat >$cmfile <<EOF
Group structure ${rare} is \$/basis.cm ${root} ${smlfile}
EOF

# Invoke sml with special option that causes CM to do its magic.
# (See src/cm/main/cm-boot.sml [function "mlbuild"] to see what's
# going on.)
$SML $dulist @CMbuild $root $cmfile $heap $listfile $LINK

exit $?