Avoid strndup in gcc.c (PR bootstrap/67363)

	PR bootstrap/67363
	* gcc.c (env_manager::xput): Replace strndup by xstrndup.

From-SVN: r227337

gcc/ChangeLog

+2015-08-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	PR bootstrap/67363
+	* gcc.c (env_manager::xput): Replace strndup by xstrndup.
+
 2015-08-31  Tom de Vries  <tom@codesourcery.com>
 
 	* tree-ssa-loop-manip.c (find_uses_to_rename_use)

gcc/gcc.c

@@ -123,7 +123,7 @@ env_manager::xput (const char *string)
       gcc_assert (equals);
 
       struct kv kv;
-      kv.m_key = strndup (string, equals - string);
+      kv.m_key = xstrndup (string, equals - string);
       const char *cur_value = ::getenv (kv.m_key);
       if (m_debug)
 	fprintf (stderr, "saving old value: %s\n",cur_value);