Help the offload gcc driver find the right assembler

	gcc/
	* gcc.c (process_command): Use spec_machine rather than
	spec_host_machine to build tooldir_prefix2.

From-SVN: r228429

gcc/ChangeLog

+2015-10-02  Bernd Schmidt  <bernds@codesourcery.com>
+
+	* gcc.c (process_command): Use spec_machine rather than
+	spec_host_machine to build tooldir_prefix2.
+
 2015-10-02  Thomas Schwinge  <thomas@codesourcery.com>
 	    Bernd Schmidt  <bernds@codesourcery.com>
 

gcc/gcc.c

@@ -4472,7 +4472,7 @@ process_command (unsigned int decoded_options_count,
     }
 
   gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
-  tooldir_prefix2 = concat (tooldir_base_prefix, spec_host_machine,
+  tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine,
 			    dir_separator_str, NULL);
 
   /* Look for tools relative to the location from which the driver is