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unposted: document BAUD change in README

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Peter Stephenson 2007-02-08 10:47:21 +00:00
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ChangeLog
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@ -1,5 +1,8 @@
2007-02-08 Peter Stephenson <pws@csr.com>
* unposted: README: add note on 23159 to incompatibilities
section.
* 23159 plus minor doc tweaks: Doc/Zsh/params.yo, Src/params.c,
Src/utils.c, Src/Zle/zle_main.c: leave BAUD parameter unset
by default.

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README
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@ -45,6 +45,14 @@ variables as an error, so can still return status 0 (depending on the
handling of other arguments). This appears to be the standard shell
behaviour.
The variable BAUD is no longer set automatically by the shell.
In previous versions it was set to the baud rate reported by
the terminal driver in order to initialise the line editor's
compensation mechanism for slow baud rates. However, the baud
rate so reported is very rarely related to the limiting speed of
screen updates on modern systems. Users who need the compensation
mechanism should set BAUD to an appropriate rate by hand.
The variable HOME is no longer set by the shell if zsh is emulating any
other shell at startup; it must be present in the environment or set
subsequently by the user. It is valid for the variable to be unset.