+2013-06-28 Kenichi Handa <handa@gnu.org>
+
+ * coding.h (define_coding_undecided_arg_index): New enum.
+ (coding_attr_index): New members
+ coding_attr_undecided_inhibit_null_byte_detection,
+ coding_attr_undecided_inhibit_iso_escape_detection,
+ coding_attr_undecided_prefer_utf_8.
+ (undecided_spec): New struct.
+ (struct coding_system): New member `undecied' of the member
+ `spec'.
+
+ * coding.c (setup_coding_system): Handle CODING->spec.undecided.
+ (detect_coding): Likewise.
+ (detect_coding_system): Likewise.
+ (Fdefine_coding_system_internal): New coding system properties
+ :inhibit-null-byte-detection, :inhibit-iso-escape-detection, and
+ :prefer-utf-8.
+ (syms_of_coding): Adjusted for coding_arg_undecided_max.
+
2013-06-22 Paul Eggert <eggert@cs.ucla.edu>
Clean up SIGCHLD handling a bit (Bug#14569).