--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/cppdefault.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,139 @@
+/* CPP Library.
+   Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+   1999, 2000, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
+   Contributed by Per Bothner, 1994-95.
+   Based on CCCP program by Paul Rubin, June 1986
+   Adapted to ANSI C, Richard Stallman, Jan 1987
+
+   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, 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; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "cppdefault.h"
+
+#ifndef STANDARD_INCLUDE_DIR
+#define STANDARD_INCLUDE_DIR "/usr/include"
+#endif
+
+#ifndef STANDARD_INCLUDE_COMPONENT
+#define STANDARD_INCLUDE_COMPONENT 0
+#endif
+
+#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
+# undef LOCAL_INCLUDE_DIR
+# undef SYSTEM_INCLUDE_DIR
+# undef STANDARD_INCLUDE_DIR
+#else
+# undef CROSS_INCLUDE_DIR
+#endif
+
+const struct default_include cpp_include_defaults[]
+#ifdef INCLUDE_DEFAULTS
+= INCLUDE_DEFAULTS;
+#else
+= {
+#ifdef GPLUSPLUS_INCLUDE_DIR
+    /* Pick up GNU C++ generic include files.  */
+    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, 0, 0 },
+#endif
+#ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
+    /* Pick up GNU C++ target-dependent include files.  */
+    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, 0, 1 },
+#endif
+#ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
+    /* Pick up GNU C++ backward and deprecated include files.  */
+    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, 0, 0 },
+#endif
+#ifdef LOCAL_INCLUDE_DIR
+    /* /usr/local/include comes before the fixincluded header files.  */
+    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
+#endif
+#ifdef PREFIX_INCLUDE_DIR
+    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0 },
+#endif
+#ifdef GCC_INCLUDE_DIR
+    /* This is the dir for gcc's private headers.  */
+    { GCC_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
+#endif
+#ifdef FIXED_INCLUDE_DIR
+    /* This is the dir for fixincludes.  */
+    { FIXED_INCLUDE_DIR, "GCC", 0, 0, 0,
+      /* A multilib suffix needs adding if different multilibs use
+	 different headers.  */
+#ifdef SYSROOT_HEADERS_SUFFIX_SPEC
+      1
+#else
+      0
+#endif
+    },
+#endif
+#ifdef CROSS_INCLUDE_DIR
+    /* One place the target system's headers might be.  */
+    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0 },
+#endif
+#ifdef TOOL_INCLUDE_DIR
+    /* Another place the target system's headers might be.  */
+    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
+#endif
+#ifdef SYSTEM_INCLUDE_DIR
+    /* Some systems have an extra dir of include files.  */
+    { SYSTEM_INCLUDE_DIR, 0, 0, 0, 1, 0 },
+#endif
+#ifdef STANDARD_INCLUDE_DIR
+    /* /usr/include comes dead last.  */
+    { STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0, 1, 0 },
+#endif
+    { 0, 0, 0, 0, 0, 0 }
+  };
+#endif /* no INCLUDE_DEFAULTS */
+
+#ifdef GCC_INCLUDE_DIR
+const char cpp_GCC_INCLUDE_DIR[] = GCC_INCLUDE_DIR;
+const size_t cpp_GCC_INCLUDE_DIR_len = sizeof GCC_INCLUDE_DIR - 8;
+#else
+const char cpp_GCC_INCLUDE_DIR[] = "";
+const size_t cpp_GCC_INCLUDE_DIR_len = 0;
+#endif
+
+/* The configured prefix.  */
+const char cpp_PREFIX[] = PREFIX;
+const size_t cpp_PREFIX_len = sizeof PREFIX - 1;
+const char cpp_EXEC_PREFIX[] = STANDARD_EXEC_PREFIX;
+
+/* This value is set by cpp_relocated at runtime */
+const char *gcc_exec_prefix;
+
+/* Return true if the toolchain is relocated.  */
+bool
+cpp_relocated (void)
+{
+  static int relocated = -1;
+
+  /* A relocated toolchain ignores standard include directories.  */
+  if (relocated == -1)
+    {
+      /* Check if the toolchain was relocated?  */
+      GET_ENVIRONMENT (gcc_exec_prefix, "GCC_EXEC_PREFIX");
+      if (gcc_exec_prefix)
+       relocated = 1;
+      else
+       relocated = 0;
+    }
+
+  return relocated;
+}
+