/* Get common system includes and various definitions and declarations
based on target macros.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2004, 2005 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 2, or (at your option)
-any later version.
+GCC 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 2, or (at your option) any later
+version.
-GNU CC 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.
+GCC 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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
+
+/* As a special exception, if you link this library with other files,
+ some of which are compiled with GCC, to produce an executable,
+ this library does not by itself cause the resulting executable
+ to be covered by the GNU General Public License.
+ This exception does not however invalidate any other reasons why
+ the executable file might be covered by the GNU General Public License. */
+
+#ifndef GCC_TSYSTEM_H
+#define GCC_TSYSTEM_H
+
+/* System headers (e.g. stdio.h, stdlib.h, unistd.h) sometimes
+ indirectly include getopt.h. Our -I flags will cause gcc's gnu
+ getopt.h to be included, not the platform's copy. In the default
+ case, gnu getopt.h will provide us with a no-argument prototype
+ which will generate -Wstrict-prototypes warnings. None of the
+ target files actually use getopt, so it is safe to tell gnu
+ getopt.h we never need this prototype. */
+#ifndef HAVE_DECL_GETOPT
+#define HAVE_DECL_GETOPT 1
+#endif
-#ifndef __GCC_TSYSTEM_H__
-#define __GCC_TSYSTEM_H__
+/* We want everything from the glibc headers. */
+#define _GNU_SOURCE 1
-/* GCC supplies this header. */
+/* GCC supplies these headers. */
#include <stddef.h>
+#include <float.h>
#ifdef inhibit_libc
extern int atexit (void (*)(void));
#endif
+#ifndef abort
+extern void abort (void) __attribute__ ((__noreturn__));
+#endif
+
+#ifndef strlen
+extern size_t strlen (const char *);
+#endif
+
+#ifndef memcpy
+extern void *memcpy (void *, const void *, size_t);
+#endif
+
+#ifndef memset
+extern void *memset (void *, int, size_t);
+#endif
+
#else /* ! inhibit_libc */
/* We disable this when inhibit_libc, so that gcc can still be built without
needing header files first. */
/* ??? This is not a good solution, since prototypes may be required in
some cases for correct code. */
-/* GCC supplies this header. */
+/* GCC supplies this header. */
#include <stdarg.h>
-/* All systems have this header. */
+/* All systems have this header. */
#include <stdio.h>
-/* All systems have this header. */
+/* All systems have this header. */
#include <sys/types.h>
-/* All systems have this header. */
+/* All systems have this header. */
#include <errno.h>
#ifndef errno
extern int errno;
#endif
-#if defined(POSIX) || defined(USG)
+/* GCC (fixproto) guarantees these system headers exist. */
#include <string.h>
-#endif
-
-/* GCC (fixproto) guarantees these system headers exist. */
#include <stdlib.h>
#include <unistd.h>
-/* GCC supplies this header. */
+/* GCC supplies this header. */
#include <limits.h>
-#if defined(POSIX) || defined(USG)
+/* GCC (fixproto) guarantees this system headers exists. */
#include <time.h>
-#endif
#endif /* inhibit_libc */
#define NULL 0
#endif
-#endif /* __GCC_TSYSTEM_H__ */
+/* GCC always provides __builtin_alloca(x). */
+#undef alloca
+#define alloca(x) __builtin_alloca(x)
+
+#ifdef ENABLE_RUNTIME_CHECKING
+#define gcc_assert(EXPR) ((void)(!(EXPR) ? abort (), 0 : 0))
+#else
+/* Include EXPR, so that unused variable warnings do not occur. */
+#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
+#endif
+/* Use gcc_unreachable() to mark unreachable locations (like an
+ unreachable default case of a switch. Do not use gcc_assert(0). */
+#define gcc_unreachable() (abort ())
+
+/* Filename handling macros. */
+#include "filenames.h"
+
+#endif /* ! GCC_TSYSTEM_H */