(detect_coding): Preserve coding->mode.

src/ChangeLog

+2009-02-19  Kenichi Handa  <handa@m17n.org>
+
+	* coding.c (detect_coding): Preserve coding->mode.
+
 2009-02-18  Dan Nicolaescu  <dann@ics.uci.edu>
 	* m/ibmrs6000.h (ADDR_CORRECT): Restore, removed by mistake on 2008-07-23.

src/coding.c

@@ -5955,6 +5955,7 @@ detect_coding (coding)
      struct coding_system *coding;
 {
   const unsigned char *src, *src_end;
+  int saved_mode = coding->mode;
 
   coding->consumed = coding->consumed_char = 0;
   coding->produced = coding->produced_char = 0;
@@ -6125,6 +6126,7 @@ detect_coding (coding)
 	    setup_coding_system (XCDR (coding_systems), coding);
 	}
     }
+  coding->mode = saved_mode;
 }