christos a6e206b6f7 Oh, my god... bc with readline support does not work at all:
echo 10 / 3 | bc
prints
	10 / 3\r\n\r3\r\n
with a stock readline... Our readline does not echo when it does not
have a tty, so it printed:
	\r3\n
I removed printing the printing of \r for now...
1997-12-20 19:19:07 +00:00
..

This is GNU bc 1.04.

The full distribution of GNU bc-1.04 may be found at any GNU software
archive.  The master copy is at ftp://prep.ai.mit.edu/pub/gnu/bc-1.04.tar.gz.

Not everything included in the full bc-1.04 distribution is included.
The files included here are only the needed files for building bc on
NetBSD.  Their location in the NetBSD tree are different than in the
original bc-1.04 source tree.