0.8.2.53:

0.8.2.53:
	Fixed hanging-on-reader-error in Darwin (and Solaris, it turns
	out):
	... Here's the deal: lseek(), on "certain devices", has
		"unspecified consequences"
	... said devices include, empirically, /dev/stdin
	... so lseek was merrily returning a success code despite
		clearly being incapable of rewinding the input stream
	... so in our new error-reporting for reader errors, we were
		assuming because of the success value that we could
		read the erroneous input into a buffer...
	... whereas we were rather sitting there waiting for more input.
	... So protect the rereading code with an INTERACTIVE-STREAM-P.