Re: Make eating all @ at the beginning of command line

[Krzysztof Cieniuch]

Paul Smith wrote:
> On Mon, 2010-11-15 at 12:25 +0000, Krzysztof Cieniuch wrote:
>   
> > make is eating all @ characters when silencing command line
> > e.g.
> > foo: bar
> >     @echo "do foo"
> >     @@echo "do foo"
> >     @@@echo "do foo"
> >     touch foo
> >
> > It doesn't matter how many @ you put up front. In above example all echo 
> > commands will be passed to shell without preceding @. Is this a bug or 
> > feature ;-)
> >     
>
> This is intended behavior.  The POSIX spec for make is slightly
> ambiguous about this but it does say:
>
>         An execution line is built from the command line by removing ANY
>         prefix characters.
>
> (emphasis mine).  GNU make does it this way so that if you write
> something like:
>
>         COMMAND = @echo hi
>         all: ; @$(COMMAND)
>
> it works rather than giving a syntax error.  I'm sure that many
> makefiles rely on this behavior whether they know it or not.
>
>   
Cool I thought so it is by design. Obviously make is perfect(ed) tool :-)))

Thanks
Chris