AC_PATH_PROG for 'rm' and 'cp'
AC_PATH_PROG for 'rm' and 'cp'

(No updated 'configure' to go with this commit, as I've only got
 an older 'autoconf' snapshot on this box.)

FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs