test directory too deep

[Ken Takusagawa]

load_config in runtest.exp only looks three levels up the directory
tree to look for the config directory. If my test directory is deeper
than that, I can't run a make check from that directory (assuming I
want to run that test only as opposed to the entire test directory
tree)

Is there a recommended workaround?

proc load_config { args } {
   global srcdir
   global board_type

   set found 0

   return [search_and_load_file "tool-and-target-specific interface
file" $args [list ${srcdir}/config ${srcdir}/../config
${srcdir}/../../config ${srcdir}/../../../config]]
}

Thanks,
--ken