1 files changed, 72 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++11/compatibility-thread-c++0x.cc b/libstdc++-v3/src/c++11/compatibility-thread-c++0x.cc
new file mode 100644
index 00000000000..cc8761eea15
--- /dev/null
+++ b/libstdc++-v3/src/c++11/compatibility-thread-c++0x.cc
@@ -0,0 +1,72 @@
+// Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
+
+// Copyright (C) 2009, 2010, 2011, 2012 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/>.
+
+#include <future>
+#include <mutex>
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+# error "compatibility-c++0x.cc must be compiled with -std=gnu++0x"
+#endif
+
+#define _GLIBCXX_ASM_SYMVER(cur, old, version) \
+   asm (".symver " #cur "," #old "@@@" #version);
+
+// XXX GLIBCXX_ABI Deprecated
+// gcc-4.6.0
+// <future> export changes
+#if defined(_GLIBCXX_SYMVER_GNU) && defined(PIC) \
+    && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
+    && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+  const std::error_category* future_category = &std::future_category();
+}
+
+_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14)
+
+#endif
+
+// XXX GLIBCXX_ABI Deprecated
+// gcc-4.6.0
+// <mutex> export changes
+#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
+#if defined(_GLIBCXX_SYMVER_GNU) && defined(PIC) \
+    && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
+    && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+  std::defer_lock_t defer_lock;
+  std::try_to_lock_t try_to_lock;
+  std::adopt_lock_t adopt_lock;
+}
+
+_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10adopt_lockE, _ZSt10adopt_lock, GLIBCXX_3.4.11)
+_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx10defer_lockE, _ZSt10defer_lock, GLIBCXX_3.4.11)
+_GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx11try_to_lockE, _ZSt11try_to_lock, GLIBCXX_3.4.11)
+
+
+#endif
+#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1