cwen 66ff0692ae qqwing: fix an infinite loop on unsigned char archs
Using the `--solve` option on powerpc made qqwing freeze. A looped
getchar(3) call never reached EOF, since the return value was stored
as a char, that is unsigned on powerpc and arm*, instead of int.

OK jca@
2021-07-24 19:35:41 +00:00
..