--- libs/fiber/src/context.cpp
+++ libs/fiber/src/context.cpp
@@ -219,7 +219,11 @@
     type_{ type::dispatcher_context },
     policy_{ launch::post }
 {
+#if defined(BOOST_GCC) && BOOST_GCC < 50000
+    c_ = boost::context::callcc_no_args_palloc(
+#else
     c_ = boost::context::callcc(
+#endif
             std::allocator_arg, palloc, salloc,
             [this,sched](boost::context::continuation && c) noexcept {
                 c = c.resume();