Provide `char-code-limit', implement the GNU equivalent in terms of it. src/ChangeLog addition: 2015-03-15 Aidan Kehoe <kehoea@parhasard.net> * text.h: Make CHAR_CODE_LIMIT available as a #define. * text.h (valid_ichar_p): Use it. * text.c: Make a fixnum Vchar_code_limit available here. * text.c (non_ascii_valid_ichar_p): Use CHAR_CODE_LIMIT. * text.c (vars_of_text): Make `char-code-limit' available to Lisp. tests/ChangeLog addition: 2015-03-15 Aidan Kehoe <kehoea@parhasard.net> * automated/mule-tests.el (test-chars): Use char-code-limit explicitly here, instead of hardcoding the corresponding values. lisp/ChangeLog addition: 2015-03-16 Aidan Kehoe <kehoea@parhasard.net> * obsolete.el (max-char): Make this available for compatiblity with GNU, implement it in terms of char-code-limit.