#!/bin/sh
EMACS=${1:-emacs}
if [ -z "$HOME" ]; then
    HOME=`(cd ; pwd)`
fi

if [ -n "$WIDGETDIR" ]; then
    echo "WIDGETDIR environment variable set, good good" 
    exit 0
fi

WITH=`${EMACS} -batch -l ${HOME}/.emacs -eval '(princ (locate-library "custom"))' | cut -f3- |xargs dirname`
WITHOUT=`${EMACS} -batch -eval '(princ (locate-library "custom"))' | cut -f3- |xargs dirname`

if [ "${WITH}" = "${WITHOUT}" ]; then
    exit 0
else
    echo "WARNING -- WARNING -- WARNING"
    echo "Found custom in different places with and without ${HOME}/.emacs"
    echo
    echo "This could cause potential problems.  Please recompile with"
    echo "the environment variable WIDGETDIR set correctly.  Try this"
    echo "command:"
    echo "make WIDGETDIR=${WITH}"
    exit 1
fi