$ gcc -Wall -Wextra -Woverflow -fwrapv -fsanitize=undefined t.c -o t && ./t
t.c: In function ‘main’:
t.c:9:31: warning: integer overflow in expression ‘-9223372036854775808’ of type ‘long int’ results in ‘-9223372036854775808’ [-Woverflow]
    9 |     printf("-LONG_MAX %ld\n", -LONG_MIN); // line 9
      |                               ^
 LONG_MIN -9223372036854775808
 LONG_MAX  9223372036854775807
-LONG_MAX -9223372036854775808
wrap lval  9223372036854775807