shift in for loop changes loop parameters

[Oğuz İsmail Uysal]

This script

  set -- 1 2
  for x; do
    echo $x
    shift $#
  done

should print

  1
  2

according to POSIX. And it does so on every other shell except pdksh clones. On mksh the output is

  1
  mksh

which is wrong.

[Thorsten Glaser (mirabilos)]

Confirm-ish, but it DTRT if you write

    for x in "$@"; do

which the autoconf manual says to use anyway; however,

    for x
    do

doesn’t work, which is their second form.

This seems to be something inherited from pdksh. I’ll look into it.

[Thorsten Glaser (mirabilos)]

Committed revision 10063BB49DD394C7BF7.