make failed

[yslim0301]

C:/Users/yinsh/Downloads/w64devkit/x86_64-w64-mingw32/include/time.h:252:31: note: initializing argument 1 of 'time_t time(time_t*)'
252 | time_t __CRTDECL time(time_t _Time) __MINGW_ASM_CALL(_time64);
| ~~~~~~~~^~~~~
random.cpp: At global scope:
random.cpp:101:36: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
101 | void GetRandompattern(register int number, level array[], int nbit)
| ^~~~~~
random.cpp: In function 'void GetRandompattern(int, level, int)':
random.cpp:103:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
103 | register int i, mask;
| ^
random.cpp:103:25: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
103 | register int i, mask;
| ^~~~
random.cpp: At global scope:
random.cpp:121:37: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
121 | void GetPRandompattern(register int number, level array[])
| ^~~~~~
random.cpp: In function 'void GetPRandompattern(int, level*)':
random.cpp:123:22: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
123 | register int i;
| ^
make: *** [makefile:85: random.o] Error 1