#!/bin/sh
# Try to locate the HDF (nicknamed hdf4) software
# This is a hack because there is no consistent place to find
# the valid HDF library.
# Usage: locate_hdf5
# It prints two strings in which the first one represents a valid
# value for the --with-hdf=... switch and the second one is where
# one can find the hdp command.  It can be added to the $PATH.

H4_SW=
H4_BIN=
OS=`uname -s`
# this default is the best guess of locating hdf4 software
h4paths_defaults="/usr/ncsa /usr/sdt /usr/local"

case "$OS" in
    HP-UX)
	h4paths="/afs/ncsa/packages/hdf/HPUX_10.20"
	;;
    IRIX)
	h4paths="/afs/ncsa/packages/hdf/4.1r3_irix"
	;;
    IRIX64)
	case "$CC" in
	cc|"")	#default cc
	    abi=`cc -show_defaults 2>&1 | grep 'default abi'`
	    case $abi in
	    *-n32)
		h4paths="/afs/ncsa/packages/hdf/IRIX64-n32_6.5"
		;;
	    *-64)
		h4paths="/afs/ncsa/packages/hdf/IRIX64_6.5"
		;;
	    *)
		h4paths="/afs/ncsa/packages/hdf/IRIX64_6.5"
		;;
	    esac	# $abi
	    ;;
	*-n32)
	    h4paths="/afs/ncsa/packages/hdf/IRIX64-n32_6.5"
	    ;;
	*)
	    h4paths="/afs/ncsa/packages/hdf/IRIX64_6.5"
	    ;;
	esac
	;;
    Linux)
	h4paths="/afs/ncsa/packages/hdf/linux"
	;;
    OSF1)
	h4paths="/afs/ncsa/packages/hdf/OSF1_V4.0"
	;;
    *)
	h4paths="$h4paths_defaults"
	;;
esac

# check if the hdf4 software is actually available
for h4 in $h4paths; do
    if [ -f $h4/lib/libdf.a -a -f $h4/include/hdf.h ]; then
	H4_SW="$h4/include,$h4/lib"
	if [ -f $h4/bin/hdp ]; then
	    H4_BIN=$h4/bin
	fi
	break
    fi
done
echo $H4_SW $H4_BIN