Don't use removed boost::asio::spawn() overload if Boost >= v1.87

Author: Al2Klimov

lib/base/io-engine.hpp

@@ -14,6 +14,7 @@
 #include <utility>
 #include <vector>
 #include <stdexcept>
+#include <boost/context/fixedsize_stack.hpp>
 #include <boost/exception/all.hpp>
 #include <boost/asio/deadline_timer.hpp>
 #include <boost/asio/io_context.hpp>
@@ -100,6 +101,10 @@ class IoEngine
 	static void SpawnCoroutine(Handler& h, Function f) {
 
 		boost::asio::spawn(h,
+#if BOOST_VERSION >= 108700
+			std::allocator_arg_t(),
+			boost::context::fixedsize_stack(GetCoroutineStackSize()),
+#endif // BOOST_VERSION >= 108700
 			[f](boost::asio::yield_context yc) {
 
 				try {
@@ -116,8 +121,10 @@ class IoEngine
 					// https://github.com/boostorg/coroutine/issues/39
 					throw;
 				}
-			},
-			boost::coroutines::attributes(GetCoroutineStackSize()) // Set a pre-defined stack size.
+			}
+#if BOOST_VERSION < 108700
+			, boost::coroutines::attributes(GetCoroutineStackSize()) // Set a pre-defined stack size.
+#endif // BOOST_VERSION < 108700
 		);
 	}