Fix /get_random_outs with Boost 1.87+

CMakeLists.txt

@@ -26,7 +26,7 @@
 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-cmake_minimum_required(VERSION 3.1.0)
+cmake_minimum_required(VERSION 3.5.0)
 project(monero-lws)
 
 enable_language(CXX)
@@ -161,7 +161,7 @@ if(STATIC)
   set(Boost_USE_STATIC_LIBS ON)
   set(Boost_USE_STATIC_RUNTIME ON)
 endif()
-find_package(Boost 1.70 QUIET REQUIRED COMPONENTS chrono coroutine filesystem program_options regex serialization system thread)
+find_package(Boost 1.70 QUIET REQUIRED COMPONENTS chrono context coroutine filesystem program_options regex serialization system thread)
 
 if (NOT (Boost_THREAD_LIBRARY STREQUAL monero_Boost_THREAD_LIBRARY_RELEASE))
   message(STATUS "Found Boost_THREAD_LIBRARY: ${Boost_THREAD_LIBRARY}")

src/CMakeLists.txt

@@ -56,6 +56,7 @@ target_link_libraries(monero-lws-daemon-common
     monero-lws-wire-json
     monero-lws-util
     ${Boost_CHRONO_LIBRARY}
+    ${Boost_CONTEXT_LIBRARY}
     ${Boost_COROUTINE_LIBRARY}
     ${Boost_PROGRAM_OPTIONS_LIBRARY}
     ${Boost_SYSTEM_LIBRARY}

src/rest_server.cpp

@@ -993,7 +993,18 @@ namespace lws
         lock.unlock();
 
         MDEBUG("Starting new ZMQ coroutine in /get_random_outs");
+#if BOOST_VERSION >= 108000
+        {
+          auto token = [] (const std::exception_ptr& e)
+          {
+            if (e)
+              std::rethrow_exception(e);
+          };
+          boost::asio::spawn(active->strand, async_handler{active}, std::move(token));
+        }
+#else
         boost::asio::spawn(active->strand, async_handler{active});
+#endif
         return success();
       }
     };