[jamboost] Re: [BBv2] os.environ vs modules.peek

From: Andrey Melnikov (melnikov_at_[hidden])
Date: 2005-07-01 16:22:43

David Abrahams wrote:
> Andrey Melnikov <melnikov_at_[hidden]> writes:
> 
>>What's the differense between [ modules.peek : TOOLS ] ; and [ 
>>os.environ TOOLS ] ?
> 
> 
> The former looks into the global module for the TOOLS variable. It
> might not correspond to anything in the environment. The latter gets
> the value of the TOOLS variable in the environment. When bjam starts,
> it puts the environment plus the command-line -s options into the
> global module, but it also does some weird preprocessing on the
> values, like splitting them at whitespace, so they start out not being
> quite what's in the environment, and can always be changed later.
> 
I'd like to pick up values from both command line -s and environment 
just like bbv1 recognizes TOOLS. How should I do this?

Andrey