ctags: Fix invalid use of 'const' resulting in garbage filenames

ctags.patch

diff -ur a/ctags-5.8/read.c b/ctags-5.8/read.c
--- a/ctags-5.8/read.c	2009-07-04 17:29:02.000000000 +1200
+++ b/ctags-5.8/read.c	2012-11-04 16:19:27.000000000 +1300
@@ -18,7 +18,6 @@
 #include <string.h>
 #include <ctype.h>
 
-#define FILE_WRITE
 #include "read.h"
 #include "debug.h"
 #include "entry.h"
diff -ur a/ctags-5.8/read.h b/ctags-5.8/read.h
--- a/ctags-5.8/read.h	2008-04-30 13:45:57.000000000 +1200
+++ b/ctags-5.8/read.h	2012-11-04 16:19:18.000000000 +1300
@@ -11,12 +11,6 @@
 #ifndef _READ_H
 #define _READ_H
 
-#if defined(FILE_WRITE) || defined(VAXC)
-# define CONST_FILE
-#else
-# define CONST_FILE const
-#endif
-
 /*
 *   INCLUDE FILES
 */
@@ -95,7 +89,7 @@
 /*
 *   GLOBAL VARIABLES
 */
-extern CONST_FILE inputFile File;
+extern inputFile File;
 
 /*
 *   FUNCTION PROTOTYPES