Re: [Boost-build] make multiple targets from one source

From: Vas Crabb (vcrabb_at_[hidden])
Date: 2008-03-03 23:54:18

Khassapov, Alex <Alex.Khassapov <at> itg.com> writes:

> 
> 
> 
> 
> 
> I wonder how to generate multiple cpp files from one text
> file?  Rule ‘make’ takes only one target.  
> 
> When I use 
> 
>  
> 
> alias genearted : $(ListOfFiles) ;
> 
> make generated : $(source) :  <at> somerule ;
> 
>  
> 
> I get an error:
> 
>  
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> error: No best alternative for ./generated
> 
>     next alternative: required properties:
> (empty)
> 
>         matched
> 
>     next alternative: required properties:
> (empty)
> 
>         matched
> 
>  
> 
>  
> 
> Best Regards
> 
> Alex Khassapov
> 

Hi,

I'd like to be able to do something like this in a simple manner, too.  I can't
find a way to make BJam realise that it's supposed to build multiple targets
with arbitrary names from sources.  It's trivial to do with make.  Here's an
example of how I could do something similar with make:

GENERATED = \
        gen1.txt \
        gen2.txt \
        gen3.txt \
        gen4.txt \
        gen5.txt

$(GENERATED) : src1.txt src2.txt src3.txt
        some_command $(foreach src,$^,-s $(src))

Is there any way to do something like this with BJam?  Maybe with a custom
generator?

Vas