void
expand(cp, wp, f)
        char *cp;               /* input word */
        XPtrV *wp;              /* output words */
        int f;                  /* DO* flags */
{
[...]
	int saw_eq, tilde_ok;
[...]
			/* age tilde_ok info - ~ code tests second bit */
			tilde_ok <<= 1; /// <- here, tilde_ok is 1073741824 (0x40000000)
[...]

$ su -
Password:
/public/src.git/bin/ksh/eval.c:598:13: runtime error: left shift of 1073741824 by 1 places cannot be represented in type 'int'
qemu#