Re: [Boost-build] how to vary the destination directory based on <toolset> in stage rule

Subject: Re: [Boost-build] how to vary the destination directory based on <toolset> in stage rule
From: Vladimir Prus (ghost_at_[hidden])
Date: 2009-04-22 13:44:38

On Wednesday 22 April 2009 21:35:35 Stjepan Rajko wrote:
> Hello,
> 
> I tried using a Jamfile with the following excerpt:
> 
> lib ofxGesture
>     : $(SOURCES).cpp
>     : <link>static
>     ;
> 
> stage osx
>     : ofxGesture
>     : <toolset>darwin
>     ;
> 
> stage linux
>     : ofxGesture
>     : <toolset>gcc
>     ;
> 
> stage win
>     : ofxGesture
>     : <toolset>msvc
>     ;
> 
> The intent was to have the destination directory depend on the
> <toolset> (with only one of those stage commands executing on any of
> the three toolsets), but now I realize that there are all sorts of
> reasons why that's not what happens.
> 
> Could someone suggest a correct way to vary the destination directory
> based on the <toolset>?

Yes, use <location> together with indirect conditinal requirements:

stage whatever :
        : ofxGesture
    : <conditional>@figure-location ;
    ;

rule figure-location ( properties * )
{
        if <target-os>windows in $(properties)
        {
                return <location>win ;
    }
    else
    { 
        return <location>unix ; 
    }
}

Adjust to taste.

- Volodya