conf_to_src.c:

  Backporting a 5.0 change:
  MAX_BUF was too small for Index.xml
  Changeing MAX_BUF and adding assert to easier
  catch the same problem in the future.
ctype-extra.c:
  Regenerating ctype-extra.c with the fixed conf_to_src.

strings/conf_to_src.c

@@ -22,7 +22,7 @@
 
 #define ROW_LEN		16
 #define ROW16_LEN	8
-#define MAX_BUF		16*1024
+#define MAX_BUF		64*1024
 
 static CHARSET_INFO all_charsets[256];
 
@@ -154,6 +154,7 @@ static int my_read_charset_file(const char *filename)
   }
   
   len=read(fd,buf,MAX_BUF);
+  DBUG_ASSERT(len < MAX_BUF);
   close(fd);
   
   if (my_parse_charset_xml(buf,len,add_collation))