Description of problem:
site-start.el constructs an invalid coding-system parameter

Version-Release number of selected component (if applicable):
21.5.27

How reproducible:
Very

Steps to Reproduce:
1. Start xemacs
2. A fatal error during reading of site-start.el stops the 
reading of init-files with error message
'Invalid constant: Unrecognized coding category, iso-8859-1'
3.
  
Actual results:
Reading of init files stops

Expected results:
Reading of init files...

Additional info:

One (not completely satisfactory) fix is to make the following change in
site-start.el

(let* ((tmp (shell-command-to-string "locale charmap"))
           (tmp (substring tmp 0 (string-match "\[ \t\n\]" tmp)))
+           (tmp (replace-in-string tmp "8859" "8"))
           (tmp (intern (downcase tmp))))
      (when (find-coding-system tmp)
        (set-coding-priority-list (list tmp))
        (set-coding-category-system tmp tmp)
        (set-default-output-coding-systems tmp)
        (set-keyboard-coding-system tmp)
        (set-terminal-coding-system tmp)
        (setq file-name-coding-system tmp)
        (setq process-coding-system-alist (cons (cons ".*" tmp) '()))
        (define-coding-system-alias 'native tmp)))

(Apparently the proper name for the coding-system is 'iso-8-1' and not
'iso-8859-1')