用于进行gcc测试

				/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.  */								/* { dg-do preprocess } */				/* { dg-options "-dI -M" } */								/* Test -dI -M does not fail.  It should print just				   the Makefile rule with dependencies.  */								#define foo bar				#include "cmdlne-dI-M.h"				#define funlike(like) fun like				int variable;								/* { dg-final { scan-file-not cmdlne-dI-M.i "(^|\\n)#define foo bar($|\\n)" } }				   { dg-final { scan-file-not cmdlne-dI-M.i "variable" } }				   { dg-final { scan-file cmdlne-dI-M.i "(^|\\n)cmdlne-dI-M.*:\[^\\n\]*cmdlne-dI-M.c" { xfail *-*-* } } } */