stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork

depends/x86_64-pc-linux-gnu/include/boost/thread/win32/interlocked_read.hpp

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+#ifndef BOOST_THREAD_DETAIL_INTERLOCKED_READ_WIN32_HPP
+#define BOOST_THREAD_DETAIL_INTERLOCKED_READ_WIN32_HPP
+
+//  interlocked_read_win32.hpp
+//
+//  (C) Copyright 2005-8 Anthony Williams
+//  (C) Copyright 2012 Vicente J. Botet Escriba
+//  (C) Copyright 2017 Andrey Semashev
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/detail/interlocked.hpp>
+#include <boost/thread/detail/config.hpp>
+
+#include <boost/config/abi_prefix.hpp>
+
+// Define compiler barriers
+#if defined(__INTEL_COMPILER)
+#define BOOST_THREAD_DETAIL_COMPILER_BARRIER() __memory_barrier()
+#elif defined(_MSC_VER) && !defined(_WIN32_WCE)
+extern "C" void _ReadWriteBarrier(void);
+#pragma intrinsic(_ReadWriteBarrier)
+#define BOOST_THREAD_DETAIL_COMPILER_BARRIER() _ReadWriteBarrier()
+#endif
+
+#ifndef BOOST_THREAD_DETAIL_COMPILER_BARRIER
+#define BOOST_THREAD_DETAIL_COMPILER_BARRIER()
+#endif
+
+#if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
+
+// Since VS2005 and until VS2012 volatile reads always acquire and volatile writes are always release.
+// But VS2012 adds a compiler switch that can change behavior to the standard. On x86 though
+// the compiler generates a single instruction for the load/store, which is enough synchronization
+// as far as uarch is concerned. To prevent compiler reordering code around the load/store we add
+// compiler barriers.
+
+namespace boost
+{
+    namespace detail
+    {
+        inline long interlocked_read_acquire(long volatile* x) BOOST_NOEXCEPT
+        {
+            long const res=*x;
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            return res;
+        }
+        inline void* interlocked_read_acquire(void* volatile* x) BOOST_NOEXCEPT
+        {
+            void* const res=*x;
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            return res;
+        }
+
+        inline void interlocked_write_release(long volatile* x,long value) BOOST_NOEXCEPT
+        {
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            *x=value;
+        }
+        inline void interlocked_write_release(void* volatile* x,void* value) BOOST_NOEXCEPT
+        {
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            *x=value;
+        }
+    }
+}
+
+#elif defined(_MSC_VER) && _MSC_VER >= 1700 && (defined(_M_ARM) || defined(_M_ARM64))
+
+#include <intrin.h>
+
+namespace boost
+{
+    namespace detail
+    {
+        inline long interlocked_read_acquire(long volatile* x) BOOST_NOEXCEPT
+        {
+            long const res=__iso_volatile_load32((const volatile __int32*)x);
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            __dmb(0xB); // _ARM_BARRIER_ISH, see armintr.h from MSVC 11 and later
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            return res;
+        }
+        inline void* interlocked_read_acquire(void* volatile* x) BOOST_NOEXCEPT
+        {
+            void* const res=
+#if defined(_M_ARM64)
+                __iso_volatile_load64((const volatile __int64*)x);
+#else
+                __iso_volatile_load32((const volatile __int32*)x);
+#endif
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            __dmb(0xB); // _ARM_BARRIER_ISH, see armintr.h from MSVC 11 and later
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            return res;
+        }
+
+        inline void interlocked_write_release(long volatile* x,long value) BOOST_NOEXCEPT
+        {
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            __dmb(0xB); // _ARM_BARRIER_ISH, see armintr.h from MSVC 11 and later
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            __iso_volatile_store32((volatile __int32*)x, (__int32)value);
+        }
+        inline void interlocked_write_release(void* volatile* x,void* value) BOOST_NOEXCEPT
+        {
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+            __dmb(0xB); // _ARM_BARRIER_ISH, see armintr.h from MSVC 11 and later
+            BOOST_THREAD_DETAIL_COMPILER_BARRIER();
+#if defined(_M_ARM64)
+            __iso_volatile_store64((volatile __int64*)x, (__int64)value);
+#else
+            __iso_volatile_store32((volatile __int32*)x, (__int32)value);
+#endif
+        }
+    }
+}
+
+#elif defined(__GNUC__) && (((__GNUC__ * 100 + __GNUC_MINOR__) >= 407) || (defined(__clang__) && (__clang_major__ * 100 + __clang_minor__) >= 302))
+
+namespace boost
+{
+    namespace detail
+    {
+        inline long interlocked_read_acquire(long volatile* x) BOOST_NOEXCEPT
+        {
+            return __atomic_load_n((long*)x, __ATOMIC_ACQUIRE);
+        }
+        inline void* interlocked_read_acquire(void* volatile* x) BOOST_NOEXCEPT
+        {
+            return __atomic_load_n((void**)x, __ATOMIC_ACQUIRE);
+        }
+
+        inline void interlocked_write_release(long volatile* x,long value) BOOST_NOEXCEPT
+        {
+            __atomic_store_n((long*)x, value, __ATOMIC_RELEASE);
+        }
+        inline void interlocked_write_release(void* volatile* x,void* value) BOOST_NOEXCEPT
+        {
+            __atomic_store_n((void**)x, value, __ATOMIC_RELEASE);
+        }
+    }
+}
+
+#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
+
+namespace boost
+{
+    namespace detail
+    {
+        inline long interlocked_read_acquire(long volatile* x) BOOST_NOEXCEPT
+        {
+            long res;
+            __asm__ __volatile__ ("movl %1, %0" : "=r" (res) : "m" (*x) : "memory");
+            return res;
+        }
+        inline void* interlocked_read_acquire(void* volatile* x) BOOST_NOEXCEPT
+        {
+            void* res;
+#if defined(__x86_64__)
+            __asm__ __volatile__ ("movq %1, %0" : "=r" (res) : "m" (*x) : "memory");
+#else
+            __asm__ __volatile__ ("movl %1, %0" : "=r" (res) : "m" (*x) : "memory");
+#endif
+            return res;
+        }
+
+        inline void interlocked_write_release(long volatile* x,long value) BOOST_NOEXCEPT
+        {
+            __asm__ __volatile__ ("movl %1, %0" : "=m" (*x) : "r" (value) : "memory");
+        }
+        inline void interlocked_write_release(void* volatile* x,void* value) BOOST_NOEXCEPT
+        {
+#if defined(__x86_64__)
+            __asm__ __volatile__ ("movq %1, %0" : "=m" (*x) : "r" (value) : "memory");
+#else
+            __asm__ __volatile__ ("movl %1, %0" : "=m" (*x) : "r" (value) : "memory");
+#endif
+        }
+    }
+}
+
+#else
+
+namespace boost
+{
+    namespace detail
+    {
+        inline long interlocked_read_acquire(long volatile* x) BOOST_NOEXCEPT
+        {
+            return BOOST_INTERLOCKED_COMPARE_EXCHANGE((long*)x,0,0);
+        }
+        inline void* interlocked_read_acquire(void* volatile* x) BOOST_NOEXCEPT
+        {
+            return BOOST_INTERLOCKED_COMPARE_EXCHANGE_POINTER((void**)x,0,0);
+        }
+        inline void interlocked_write_release(long volatile* x,long value) BOOST_NOEXCEPT
+        {
+            BOOST_INTERLOCKED_EXCHANGE((long*)x,value);
+        }
+        inline void interlocked_write_release(void* volatile* x,void* value) BOOST_NOEXCEPT
+        {
+            BOOST_INTERLOCKED_EXCHANGE_POINTER((void**)x,value);
+        }
+    }
+}
+
+#endif
+
+#include <boost/config/abi_suffix.hpp>
+
+#endif