Re: makes which break with `silent-rules'

[Thomas Dickey]

On Sat, 30 May 2009, Ralf Wildenhues wrote:

> > > POSIX says that; however different implementations of 'make' treat
> > > forward-references differently.
>
> > Well that's when you would put XY_V last, just to be sure:
> >
> > XY_ = unknown
> > XY_0 = silent
> > XY_1 = verbose
> > XY_V = $(XY_$(V))
> >
> > then there is no forward reference.
>
> I wouldn't know a construct where the order of variable assignments is
> treated differently by different make implementations.  Can you give an
> example, Thomas?  Thanks.

not offhand (I recall running into it, but long ago stopped doing forward
references, to avoid that).

> The portability issue I was speaking about was purely about variable
> references $(V) within "$(" and ")".

> Cheers,
> Ralf

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net