From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-01-04 17:44:29
----- Original Message -----
From: "Rene Rivera" <grafik666_at_[hidden]>
Sent: Thursday, January 03, 2002 9:59 PM
Subject: Re: [jamboost] Wrapping up new design
> On 2002-01-03 at 04:37 PM, david.abrahams_at_[hidden] (David Abrahams) wrote:
> >There are other reasons why it would be useful to be able to translate a
> >path from relative to absolute. Maybe you should just add that
> Cool, then. How about adding a builtin rule "ABSOLUTE <target> ;". It just
> turns on the absolute flag in the target, like NOTFILE and others do.
I can't imagine what the point of having an absolute flag on a target might
> >I guess your idea of a BIND rule returning empty when the file isn't
> >in SEARCH or LOCATE would be best.
> Totally agree with your Yucks :-)
> So a "BIND <target> ;" builtin then it is.
> Which means that then the following is possible:
> [ if PWD is /home/user/something ]
Hmm; we could dispense with ABSOLUTE altogether and just supply PWD. From
there, we can turn any relative path into an absolute one ourselves, by
prepending the value of PWD:
We could even do this in build actions to induce absolute paths there.
> PROJECT_CONFIG ?= project-config.jam ;
> SEARCH on $(PROJECT_CONFIG) : . ;
> ABSOLUTE $(PROJECT_CONFIG) ;
> BIND $(PROJECT_CONFIG) ;
> if $(PROJECT_CONFIG)
> ECHO $(PROJECT_CONFIG) ;
> Prints "/home/user/something/project-config.jam", if it's found.
That's pretty complicated. What do you think of my suggestions?
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