collect2.c (scan_libraries): Use CONST_CAST2 to perform char ** to const char ** conversion.

	* collect2.c (scan_libraries): Use CONST_CAST2 to perform char ** to
	const char ** conversion.

From-SVN: r150092

gcc/ChangeLog

+2009-07-25  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	* collect2.c (scan_libraries): Use CONST_CAST2 to perform char ** to
+	const char ** conversion.
+
 2009-07-25 David Daney <ddaney@caviumnetworks.com>
 
 	* system.h (gcc_assert): Invoke __builtin_unreachable() instead of

gcc/collect2.c

@@ -2271,7 +2271,7 @@ scan_libraries (const char *prog_name)
   void (*quit_handler) (int);
 #endif
   char *real_ldd_argv[4];
-  const char **ldd_argv = (const char **) real_ldd_argv;
+  const char **ldd_argv = CONST_CAST2 (const char **, char **, real_ldd_argv);
   int argc = 0;
   struct pex_obj *pex;
   const char *errmsg;