plugin.c (try_init_one_plugin): Improve constness of variable err.

	* plugin.c (try_init_one_plugin): Improve constness of variable
	err.

From-SVN: r152638

gcc/ChangeLog

-2009-10-10  Gerald Pfeifer  <gerald@pfeifer.com>
+2009-10-11  Gerald Pfeifer  <gerald@pfeifer.com>
+
+	* plugin.c (try_init_one_plugin): Improve constness of variable
+	err.
 
+2009-10-10  Gerald Pfeifer  <gerald@pfeifer.com>
+	
 	* doc/install.texi (Final install): Refer to
 	http://gcc.gnu.org/bugs/ for bug reporting.
 

gcc/plugin.c

@@ -408,7 +408,7 @@ try_init_one_plugin (struct plugin_name_args *plugin)
 {
   void *dl_handle;
   plugin_init_func plugin_init;
-  char *err;
+  const char *err;
   PTR_UNION_TYPE (plugin_init_func) plugin_init_union;
 
   /* We use RTLD_NOW to accelerate binding and detect any mismatch