collect2.c (scan_prog_file, [...]): Use CONST_CAST instead of bare conversion to…

collect2.c (scan_prog_file, [...]): Use CONST_CAST instead of bare conversion to cast const-ness away.

        * collect2.c (scan_prog_file, COFF version): Use CONST_CAST
        instead of bare conversion to cast const-ness away.

From-SVN: r137889

gcc/ChangeLog

+2008-07-16  Olivier Hainque  <hainque@adacore.com>
+
+	* collect2.c (scan_prog_file, COFF version): Use CONST_CAST
+	instead of bare conversion to cast const-ness away.
+
 2008-07-16  Anatoly Sokolov  <aesok@post.ru>
 
 	* config/xtensa/xtensa.h (FUNCTION_OUTGOING_VALUE,

gcc/collect2.c

@@ -2476,8 +2476,8 @@ scan_prog_file (const char *prog_name, enum pass which_pass)
       /* Some platforms (e.g. OSF4) declare ldopen as taking a
 	 non-const char * filename parameter, even though it will not
 	 modify that string.  So we must cast away const-ness here,
-	 which will cause -Wcast-qual to burp.  */
-      if ((ldptr = ldopen ((char *)prog_name, ldptr)) != NULL)
+	 using CONST_CAST to prevent complaints from -Wcast-qual.  */
+      if ((ldptr = ldopen (CONST_CAST (char *, prog_name), ldptr)) != NULL)
 	{
 	  if (! MY_ISCOFF (HEADER (ldptr).f_magic))
 	    fatal ("%s: not a COFF file", prog_name);