Re: [configure bug while building] flex beta version 2.5.15

[Paul Eggert]

> From: Bruce Lilly <address@hidden>
> Date: Thu, 29 Aug 2002 11:40:58 -0400
> 
> Tim Van Holder wrote:
>  > it will only have an effect if interactively running
> > commands - PS1 never gets evaluated when running a script
> 
> Not so -- I've seen configure fail unless/until PS1
> was reset, either externally or by inserting a line
> near the top of the script -- otherwise it would not
> have been reported as a configure bug.

Do you have more details about that box?  Perhaps a copy of that bug
report?

How "near the top" does the "unset PS1" have to be?  In other words,
how does this PS1-related bug affect the execution of shell scripts?
For example, does the problem occur only if the shell script executes
something inside backquotes?