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diff --git a/libstdc++-v3/config/os/hpux/os_defines.h b/libstdc++-v3/config/os/hpux/os_defines.h
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+// Specific definitions for HPUX  -*- C++ -*-
+
+// Copyright (C) 2000, 2002, 2004, 2005, 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library 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 library 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file os_defines.h
+ *  This is an internal header file, included by other library headers.
+ *  You should not attempt to use it directly.
+ */
+
+#ifndef _GLIBCXX_OS_DEFINES
+#define _GLIBCXX_OS_DEFINES 1
+
+// System-specific #define, typedefs, corrections, etc, go here.  This
+// file will come before all others.
+
+// Use macro form of ctype functions to ensure __SB_masks is defined.
+#define _SB_CTYPE_MACROS 1
+
+/* HP-UX, for reasons unknown choose to use a different name for
+   the string to [unsigned] long long conversion routines.
+
+   Furthermore, instead of having the prototypes in stdlib.h like
+   everyone else, they put them into a non-standard header
+   <inttypes.h>.  Ugh.
+
+   <inttypes.h> defines a variety of things, some of which we 
+   probably do not want.  So we don't want to include it here.
+
+   Luckily we can just declare strtoll and strtoull with the
+   __asm extension which effectively renames calls at the
+   source level without namespace pollution.
+
+   Also note that the compiler defines _INCLUDE_LONGLONG for C++
+   unconditionally, which makes intmax_t and uintmax_t long long
+   types.
+
+   We also force _GLIBCXX_USE_LONG_LONG here so that we don't have
+   to bastardize configure to deal with this sillyness.  */
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+_GLIBCXX_BEGIN_EXTERN_C
+
+#ifndef __LP64__
+  __extension__ long long strtoll (const char *, char **, int)
+    __asm  ("__strtoll");
+  __extension__ unsigned long long strtoull (const char *, char **, int)
+    __asm  ("__strtoull");
+#else
+  __extension__ long long strtoll (const char *, char **, int)
+    __asm  ("strtol");
+  __extension__ unsigned long long strtoull (const char *, char **, int)
+    __asm  ("strtoul");
+#endif
+
+_GLIBCXX_END_EXTERN_C
+_GLIBCXX_END_NAMESPACE
+
+#define _GLIBCXX_USE_LONG_LONG 1
+
+// HPUX on IA64 requires vtable to be 64 bit aligned even at 32 bit
+// mode.  We need to pad the vtable structure to achieve this.  
+#if !defined(_LP64) && defined (__ia64__)
+#define _GLIBCXX_VTABLE_PADDING 8
+typedef long int __padding_type;
+#endif
+
+// GCC on IA64 HP-UX uses the HP-UX system unwind library,
+// it does not have the _Unwind_Resume_or_Rethrow entry point
+// because that is not part of the standard IA64 Unwind ABI.
+#if defined (__ia64__)
+#define _LIBUNWIND_STD_ABI 1
+#endif
+
+/* Don't use pragma weak in gthread headers.  HP-UX rejects programs
+   with unsatisfied external references even if all of those references
+   are weak; gthread relies on such unsatisfied references being resolved
+   to null pointers when weak symbol support is on.  */
+#define _GLIBCXX_GTHREAD_USE_WEAK 0
+
+// The strtold function is obsolete and not C99 conformant on PA HP-UX.
+// It returns plus or minus _LDBL_MAX instead of plus or minus HUGE_VALL
+// if the correct value would cause overflow.  It doesn't handle "inf",
+// "infinity" and "nan".  It is not thread safe. 
+#if defined (__hppa__)
+#define _GLIBCXX_HAVE_BROKEN_STRTOLD 1
+#endif
+#endif