Re: [Boost-build] [Boost][Build][v2] Adding command line options

From: Rene Rivera (grafikrobot_at_[hidden])
Date: 2006-09-07 17:26:14

K. Noel Belcourt wrote:
> On Sep 7, 2006, at 2:28 PM, Rene Rivera wrote:
> 
>> K. Noel Belcourt wrote:
>>> I've looked at what's done in the Boost distribution but from what I
>>> can tell, it seems to require modifications to the Jambase, which I'd
>>> rather avoid if possible.  Any ideas?
>> No need to change Jambase... There's a global var "ARGV" which  
>> holds all
>> the arguments. Take a look at how the Boost Jamfile.v2
>> <http://boost.cvs.sourceforge.net/boost/boost/Jamfile.v2? 
>> revision=1.38&view=markup#l_175>
>> handles all the options it uses.
> 
> Okay, that's weird.
> 
> Here's my Jamroot
> 
> 	local build-directory = [ MATCH "^--builddir=(.*)" : $(ARGV) ] ;
> 	build-directory ?= bin ;
> 
> 	project : : : build-dir $(build-directory) ;
> 
> bjam --v2
> 
> builds in the bin directory as it should.  Unfortunately,
> 
> bjam --v2 --builddir=junk
> 
> also builds in the bin directory.  Anything obvious I'm doing wrong?

Yes ;-) Everything is a module in BBv2 so you need to get the variable 
from the global module. Use "[ module.peek : ARGV ]" instead of "$(ARGV)".

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