Fix and protect OPENACC / TOF_TRAIN defines by () brackets

Author: willend

mccode/src/cogen.c.in

@@ -1627,11 +1627,11 @@ void def_trace_section(struct instr_def *instr)
   // Defines for _particle-carried TOF-train arrays in case of OPENACC
   cout("#ifdef TOF_TRAIN");
   cout("#ifdef OPENACC");
-  cout("#define N_trains _particle->N_trains");
-  cout("#define t_offset _particle->t_offset");
-  cout("#define p_trains _particle->p_trains");
-  cout("#define alive_trains _particle->alive_trains");
-  cout("#define P_last_time_manipulation _particle->P_last_time_manipulation;");
+  cout("#define N_trains (_particle->N_trains)");
+  cout("#define t_offset (_particle->t_offset)");
+  cout("#define p_trains (_particle->p_trains)");
+  cout("#define alive_trains (_particle->alive_trains)");
+  cout("#define P_last_time_manipulation (_particle->P_last_time_manipulation)");
   cout("#endif /* OPENACC */");
   cout("#endif /* TOF_TRAIN */");