#!/bin/sh

if [ x$DISPLAY = x ]; then
	echo "Your DISPLAY variable isn't set."
fi



mach=`/bin/athena/machtype -v`
if [ "$mach" = "sun4" ]; then
   defaultversion=3.5.2
elif [ "$mach" = "linux" ]; then
   defaultversion=3.4
else
   defaultversion=3.1
fi

if [ "$1" = "" ]; then
    version=$defaultversion
else
    version=$1
fi

file=/mit/xephem/bin/xephem-$version
if [ ! -s $file ]; then
    version=$defaultversion
    file=/mit/xephem/bin/xephem-$version
fi



#XFILESEARCHPATH=${XFILESEARCHPATH-}${XFILESEARCHPATH+:}/mit/xephem/lib/%T/%N%S
XFILESEARCHPATH=${XFILESEARCHPATH-}${XFILESEARCHPATH+:}/mit/xephem/lib/%T/XEphem-$version
export XFILESEARCHPATH

file=/mit/xephem/bin/xephem-$version
if [ -s $file ]; then
    exec $file
else
    echo "Sorry, version $version of xephem is not built for this platform."
fi