fix warning about overflow if matiec is running on 64-bit platform,
but the generated C code will cross-compiled for 32-bit platform

For example:
./build/config.c:29:39: error: large integer implicitly truncated to unsigned type [-Werror=overflow]
unsigned long greatest_tick_count__ = 18446744073709551611UL; /*tick*/
^
compilation terminated due to -Wfatal-errors.
cc1: all warnings being treated as errors

     1

     2

     3

     4

TYPE

     5

 enum_type00 : (enum_v1, XXXX, enum_v2) := XXXX;

     6

END_TYPE

     7

     8

TYPE

     9

 enum_type01 : (XXXX, enum_v2) := XXXX;

    10

END_TYPE

    11

    12

TYPE

    13

 enum_type02 : (enum_v1, XXXX) := XXXX;

    14

END_TYPE

    15

    16

TYPE

    17

 enum_type03 : (XXXX) := XXXX;

    18

END_TYPE

    19

    20

    21

    22

    23

function foo : int

    24

 var_input

    25

  a_1, b_1: int;

    26

 end_var

    27

 var

    28

  c_1, d_1: enum_type00;

    29

(*

    30

  enum_v1 : enum_type00;

    31

*)

    32

 end_var

    33

  c_1 := enum_type00#XXXX;

    34

  c_1 := XXXX;

    35

  c_1 := enum_v1;

    36

(*

    37

  enum_v1 := enum_v1;

    38

*)

    39

end_function

    40

    41