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diff --git a/gcc-4.2.1-5666.3/gcc/hosthooks.h b/gcc-4.2.1-5666.3/gcc/hosthooks.h
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+++ b/gcc-4.2.1-5666.3/gcc/hosthooks.h
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+/* The host_hooks data structure.
+   Copyright 2003, 2004 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+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.
+
+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 GCC; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#ifndef GCC_HOST_HOOKS_H
+#define GCC_HOST_HOOKS_H
+
+struct host_hooks
+{
+  void (*extra_signals) (void);
+
+  /* Identify an address that's likely to be free in a subsequent invocation
+     of the compiler.  The area should be able to hold SIZE bytes.  FD is an
+     open file descriptor if the host would like to probe with mmap.  */
+  void * (*gt_pch_get_address) (size_t size, int fd);
+
+  /* ADDR is an address returned by gt_pch_get_address.  Attempt to allocate
+     SIZE bytes at the same address and load it with the data from FD at 
+     OFFSET.  Return -1 if we couldn't allocate memory at ADDR, return 0
+     if the memory is allocated but the data not loaded, return 1 if done.  */
+  int (*gt_pch_use_address) (void *addr, size_t size, int fd, size_t offset);
+
+  /*  Return the alignment required for allocating virtual memory. Usually
+      this is the same as pagesize.  */
+  size_t (*gt_pch_alloc_granularity) (void);
+
+  /* Whenever you add entries here, make sure you adjust hosthooks-def.h.  */
+};
+
+/* Each host provides its own.  */
+extern const struct host_hooks host_hooks;
+
+#endif /* GCC_LANG_HOOKS_H */