/* This testcase is part of GDB, the GNU debugger.
Copyright 2013-2015 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
#if 0
# define HEADER 1
#endif
#if 1
# undef HEADER
# define HEADER 2
void header_two_func (void) {}
#endif
#if 0
/* #include "header.h" does not work, why? */
# include
#endif