Index: src/Concurrency/Keywords.cc
===================================================================
--- src/Concurrency/Keywords.cc	(revision ab8c6a6efe9f4120bf5d5eed0b649cad34d89af3)
+++ src/Concurrency/Keywords.cc	(revision cd6a6ffee16b2e0915b5be3211ed86e60fd011e9)
@@ -405,4 +405,6 @@
 			dtor_decl = decl;
 		else if ( vtable_name.empty() )
+			;
+		else if( !decl->has_body() )
 			;
 		else if ( auto param = isMainFor( decl, cast_target ) ) {