coding.c (detect_coding): Set coding->id before calling this->detector.

src/ChangeLog

+2012-10-13  HANATAKA, Shinya  <bogytech@gmail.com>  (tiny change)
+
+	* coding.c (detect_coding): Set coding->id before calling
+	this->detector.
+
 2012-10-12  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* doc.c (get_doc_string): Don't signal an error if the file is missing.

src/coding.c

@@ -6301,6 +6301,9 @@ detect_coding (struct coding_system *coding)
 		{
 		  category = coding_priorities[i];
 		  this = coding_categories + category;
+		  /* Some of this->detector (e.g. detect_coding_sjis)
+		     require this information.  */
+		  coding->id = this->id;
 		  if (this->id < 0)
 		    {
 		      /* No coding system of this category is defined.  */