ash bug ?

[Rich Felker]

On Sun, Sep 03, 2006 at 08:40:22PM +0200, walter harms wrote:
> hi list,
> riaz and i are working on documenting ash. so i tried to run the bash test scripts on ash.
> and one place ash breaks where sh works. bug or feature ?
> ash is running endless because it does not find 'x'
> 
> x=3
> until (( x == 4 )) ; do
>         x=4
> done
> 
> note:
> 
> removing the spaces solves the problem.

See http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html
Nothing about (( )) there.

Rich