Re: [Boost-build] [user-config.jam][stlport] how are toolset and stlib versions selected?

Subject: Re: [Boost-build] [user-config.jam][stlport] how are toolset and stlib versions selected?
From: Andy Schweitzer (a.schweitzer.grps_at_[hidden])
Date: 2009-05-25 11:46:54

Vladimir Prus wrote:
> On Monday 25 May 2009 03:15:33 Andy Schweitzer wrote:
>> Can someone explain how tool usage gets resolved, given the following in 
>> user-config.jam?
>>
>> In my command line I specify toolset=msvc-8.0~wm5~stlport5.2 and also 
>> stlib=stlport
>>
>> How does bjam use those parameters to choose among all the possible 
>> using stlport statements in user-config.jam?
>>
>>
[snip]
>>
>> It seems like the intention of multiple using statements is to allow 
>> something like "if I'm using msvc-8, use my stlport-vc8; if I'm using 
>> msvc-9-windows-mobile, use my stlport-vc9-windows-mobile, so the if we 
>> say toolset=mscv-9.0~wm5~stlport5.2 stdlib=stlport, the correct stlport 
>> should be found.
> 
> No, not really. You can pass a version to 'using stlport', e.g.:
> 
>     using stlport : 5.2 : ... ;
> 
> and then:
> 
>     using stlport : 5.3 : ... ;
> 
> Then, the selection is made by explicitly requesting the right version:
> 
>     bjam stdlib=stlport-5.3
> 
> There's no selection mechanism that is keyed on toolchain, or other properties.
> 
> Does this help?

Yes, exactly what I was asking, thanks.
> 
> - Volodya
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