dodgy syntax in acx.m4?

[Jay Foad <jay dot foad at gmail dot com>]

I've just noticed this in config/acx.m4:

dnl GCC_TARGET_TOOL(PROGRAM, TARGET-VAR, HOST-VAR, IN-TREE-TOOL, LANGUAGE)
AC_DEFUN([GCC_TARGET_TOOL],
[AC_MSG_CHECKING(where to find the target $1)
if test "x${build}" != "x${host}" ; then
  ...
else
  ifelse([$4],,,
  [ok=yes
  case " ${configdirs} " in
    *" patsubst([$4], [/.*], []) "*) ;;
    *) ok=no ;;
  esac
  ifelse([$5],,,
  [case ,${enable_languages}, in
    *,$5,*) ;;
    *) ok=no ;;
  esac])
  if test $ok = yes; then
    # An in-tree tool is available and we can use it
    $2='$$r/$(HOST_SUBDIR)/$4'
    AC_MSG_RESULT(just compiled)
  el])if expr "x[$]$2" : "x/" > /dev/null; then
  ^^^^^^

That "el])if" looks very odd. Is it meant to be like that?

Thanks,
Jay.