UNIX-WIZARDS Digest V1#112 (NIH)

[Peter DaSilva]

> If you want to flame about how changing things is, look at
> the change from 4.1BSD to 4.2BSD!

I have never used 4.1, but apart from directory entries, I have nothing to
complain about in porting vanilla V7 stuff to 4.2. Since 4.1 is a V7
derivative, I can hardly see that the 4.1 -> 4.2 change could have created any
major incompatibilities.

The SIII system I used was a Unisoft port. It didn't require you to diddle
with MIN and TIME to set CBREAK mode. If you don't you get 4 character
granularity in reads, and they time out after 2.8 seconds. This broke several
programs I was trying to maintain on a system that was converted from SIII to
SV. I still haven't gotten Xmodem to work reliably again (though I must
admit I haven't spent a great deal of time working on it lately).

Can you say "incomptibility"? The 4.2 method of handling timouts is much
better, since it ADDS a function, instead of CHANGING an existing one.