Re: io.popen ioctl errors

[Ted Unangst <ted.unangst@...>]

On Sat, Aug 14, 2010 at 7:34 PM, Wesley Smith <wesley.hoke@gmail.com> wrote:
> However, if I invoke the task with io.popen, it looks like this:
>
>    transformation. If your rendered images unexpectedly change, add a "Scale
>    -1 1 1" to the start of your scene file.
> Error in ioctl() in TerminalWidth(): 25Error in ioctl() in
> TerminalWidth(): 25Error in ioctl() in TerminalWidth():
> 25lua_pbrt8.pbrt(7): Warning: This version of pbrt fixes a bug in the
> LookAt
>    transformation. If your rendered images unexpectedly change, add a "Scale
>
>
> Does anyone know what the story with these Error in ioctl() in
> TerminalWidth(): 25 errors?

pbrt is apparently missing an isatty() call and the associated logic
to not treat stdout as a terminal when it's not.