commit bf08155d16ea8c359d1bfab6bac684cdfada4a5b
Author: Andrey Semashev <andrey.semashev@gmail.com>
Date:   Wed Dec 15 02:06:11 2021 +0300

    Fix compilation for UWP.
    
    UWP does not support APIs related to dynamic symbol binding and dlls.
    Disable runtime detection of WaitOnAddress & co. for that target. These
    APIs should be enabled at compile time on Windows 8.
    
    Fixes https://github.com/boostorg/atomic/issues/54.

Index: boost_1_78_0/libs/atomic/src/wait_on_address.cpp
===================================================================
--- boost_1_78_0.orig/libs/atomic/src/wait_on_address.cpp	2021-12-15 14:13:15.947085327 +0300
+++ boost_1_78_0/libs/atomic/src/wait_on_address.cpp	2021-12-15 14:13:15.944085319 +0300
@@ -23,28 +23,34 @@
 #include <boost/atomic/detail/config.hpp>
 #include <boost/atomic/detail/link.hpp>
 #include <boost/atomic/detail/once_flag.hpp>
 #include <boost/atomic/detail/wait_on_address.hpp>
 
+#if BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM
+
 #include <boost/static_assert.hpp>
 #include <boost/memory_order.hpp>
 #include <boost/winapi/thread.hpp>
 #include <boost/winapi/get_proc_address.hpp>
 #include <boost/winapi/dll.hpp>
 
 #include <boost/atomic/detail/core_operations.hpp>
 
+#endif // BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM
+
 #include <boost/atomic/detail/header.hpp>
 
 namespace boost {
 namespace atomics {
 namespace detail {
 
 BOOST_ATOMIC_DECL wait_on_address_t* wait_on_address = NULL;
 BOOST_ATOMIC_DECL wake_by_address_t* wake_by_address_single = NULL;
 BOOST_ATOMIC_DECL wake_by_address_t* wake_by_address_all = NULL;
 
+#if BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM
+
 BOOST_ATOMIC_DECL once_flag wait_functions_once_flag = { 2u };
 
 BOOST_ATOMIC_DECL void initialize_wait_functions() BOOST_NOEXCEPT
 {
     BOOST_STATIC_ASSERT_MSG(once_flag_operations::is_always_lock_free, "Boost.Atomic unsupported target platform: native atomic operations not implemented for bytes");
@@ -88,10 +94,20 @@ BOOST_ATOMIC_DECL void initialize_wait_f
             break;
         }
     }
 }
 
+#else // BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM
+
+BOOST_ATOMIC_DECL once_flag wait_functions_once_flag = { 0u };
+
+BOOST_ATOMIC_DECL void initialize_wait_functions() BOOST_NOEXCEPT
+{
+}
+
+#endif // BOOST_WINAPI_PARTITION_DESKTOP || BOOST_WINAPI_PARTITION_SYSTEM
+
 } // namespace detail
 } // namespace atomics
 } // namespace boost
 
 #include <boost/atomic/detail/footer.hpp>