Re: [Boost-build] CVS: boost/tools/build/new project-root.jam,1.13,1.14

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-10-31 05:44:05

Rene Rivera wrote:
> [2002-10-30] Vladimir Prus wrote:
> 
> 
>>>>Rene, did you look at 'path.root' rule? With it, you can write 
>>>
>>this as: 
>>
>>>> value = [ path.root $(value) $(self.location) ] ; 
>>>
>>> 
>>>I did... the difference is that the way I did it simplifies the 
>>
>>path in 
>>
>>>addition to rooting it. I thought about changing the path.root to 
>>
>>do what I 
>>
>>>did above but didn't know if that would break anything else. 
>>
>>Well.. path.root calls path.join which should simplify too. 
>>Do you have an example where path.root won't do the right thing? 
> 
> 
> [ path.root sub1/sub2/.. . ]
> 
> produces: sub1/sub2/..
> 
> I would think it should procude: sub1
> 
> The problem is that path.join only reduces if the path is given to it in
> parts.

Actually, "sub1/sub2/.." is not "normalized path", you'd have to
write

[ path.root [ path.make sub1/sub2/.. ] . ]

This does not work, either, due to a bug in 'make' that I've just fixed
locally and will commit shortly. I'll change constants handling to
use path.root after that.

- Volodya