Re: [Boost-build] path of a .jam file

From: K. Noel Belcourt (kbelco_at_[hidden])
Date: 2008-01-04 21:36:56

On Jan 4, 2008, at 5:19 PM, Jaroslav Gresula wrote:

> "K. Noel Belcourt" wrote:
>> On Jan 4, 2008, at 4:38 PM, Jaroslav Gresula wrote:
>>> is there a way a .jam file can find out its path?
>>
>> I wrote a small utility to do this, but it's not currently in the
>> trunk.  I've attempted to extract enough of it here to get you
>> working.  Here's what you do:
>>
>> (1) In the Jamfile whose path you want to know, create a local
>> variable and call the path-relative-to rule.
>>
>> local path-to-jamfile = [ path-relative-to ] ;
>>
>> This will return the path to this Jamfile from the Jamroot (that's
>> why it's a relative path).
>>
>> Next you need to add the code in the attached file to boost/tools/
>> build/v2/build/project.jam around line 930 or so.
>
> Hi Noel,
>
> after fixing a minor typo in the attached code I'm getting
>
>   rule path.find-directory-containing unknown in module jag_swig
>
> and really there is no such rule in path.jam.

Oops, forgot to send you the path.jam rule for find-directory- 
containing.

> Do you think that this mechanism is going to work even for a .jam file
> (i.e. a utility file that is not a project) that has no parent
> Jamroot?

Good question, I'm not sure.  Perhaps Volodya or Rene knows of a  
better approach.

-- Noel