g++44  -I. -MMD -I.../verilator/include -I.../verilator/include/vltstd -DVL_PRINTF=printf -DVM_TRACE=0 -DVM_COVERAGE=0 -c -o Vddr3_ctlr_m0_q11_1sp2_example_sim__ALLcls.o Vddr3_ctlr_m0_q11_1sp2_example_sim__ALLcls.cpp
In file included from Vddr3_ctlr_m0_q11_1sp2_example_sim__ALLcls.cpp:2:
Vddr3_ctlr_m0_q11_1sp2_example_sim.cpp: In static member function ‘static void Vddr3_ctlr_m0_q11_1sp2_example_sim::_initial__TOP(Vddr3_ctlr_m0_q11_1sp2_example_sim__Syms*)’:
Vddr3_ctlr_m0_q11_1sp2_example_sim.cpp:25917: error: ‘struct Vddr3_ctlr_m0_q11_1sp2_example_sim’ has no member named ‘message’
Vddr3_ctlr_m0_q11_1sp2_example_sim.cpp:25920: error: ‘struct Vddr3_ctlr_m0_q11_1sp2_example_sim’ has no member named ‘message’
Vddr3_ctlr_m0_q11_1sp2_example_sim.cpp:25922: warning: cannot pass objects of non-POD type ‘struct std::string’ through ‘...’; call will abort at runtime
...

     // INITIAL at ..//submodules//./..//submodules/altera_avalon_clock_source.sv:76 
     // Function: ___05Fhello at ..//submodules//./..//submodules/altera_avalon_clock_source.sv:77 
     VL_SFORMAT_X(64,vlTOPp->message,"%Nv.pll_ref_clk: - Hello from altera_clock_source.", 
                  vlSymsp->name()); 
     // Function: print at ..//submodules//./..//submodules/altera_avalon_clock_source.sv:40 
     __Vtask_print__1__message = vlTOPp->message; 
     VL_WRITEF("%20t:    INFO: %s\n",64,VL_TIME_Q(), 
               64,__Vtask_print__1__message); 

    import verbosity_pkg::*; 
 
    localparam HALF_CLOCK_PERIOD   = 1000.000000/CLOCK_RATE/2; // half clock period in ns 
     
    logic clk = 1'b0; 
 
//   string message   = "*uninitialized*"; 
    bit    run_state = 1'b1; 
 
    function automatic void __hello(); 
       $sformat(message, "%m: - Hello from altera_clock_source."); 
       print(VERBOSITY_INFO, message);             
       $sformat(message, "%m: -   $Revision: #1 $"); 
       print(VERBOSITY_INFO, message);             
       $sformat(message, "%m: -   $Date: 2011/11/10 $"); 
       print(VERBOSITY_INFO, message); 
       $sformat(message, "%m: -   CLOCK_RATE = %0d", CLOCK_RATE);       
       print(VERBOSITY_INFO, message); 
       print_divider(VERBOSITY_INFO);       
    endfunction 
...
    initial begin 
       __hello(); 
    end