x-files must die: generate *config.h from the Makefile, etc

[Richard Henderson]

On Wed, Mar 21, 2001 at 10:44:48AM -0800, Zack Weinberg wrote:
> exec >&-
> 
> is supposed to close it.

It does close it, but does not open anything in its place.
It seems like you'll be likely to get all sorts of silly
errors if you invoke programs without a valid stdout.

Seems like you might be better off with 

exec 1>&4 > $output.T 
...
exec 4>&1


r~