Re: [Boost-build] accessing properties not working

Subject: Re: [Boost-build] accessing properties not working
From: Vladimir Prus (ghost_at_[hidden])
Date: 2010-04-04 06:43:32

On Sunday 04 April 2010 13:07:41 Oliver Kowalke wrote:

> I struggling with boost.build for a while and I don't get the Jamfile 
> working. I hope you are so kind to help me a little bit.
> 
> I use target alternatives for different platforms. The alternatives 
> depend on used compiler, architecture, target-os and linkage.
> 
> I've added a new feature ctxapi which is used to select the correct 
> target-alternative.
> 
> Unfortunately the rule setting the default value for ctxapi can not 
> access the properties like <toolset>.
> 
> rule default_ctxapi ( properties * )
> {
>     if <toolset>gcc in $(properties)
>     {
>       # never entered ?!
>     }
> }
> 
> feature.set-default ctxapi : [ default_ctxapi $(properties) ] ;

I am unsure why you expect this to work. The last line tries to access
variable named 'properties' and pass its value to the 'default_ctxapi'
function. I don't think that variable named 'properties' is defined in
Jamfile -- unless you have defined it yourself.

Thanks,

--
Vladimir Prus
http://vladimir_prus.blogspot.com
Boost.Build: http://boost.org/boost-build2