Re: [Boost-build] [v2] Python install root(s)

From: David Abrahams (dave_at_[hidden])
Date: 2006-06-01 10:44:23

"Noel Belcourt" <kbelco_at_[hidden]> writes:

> I want to configure our site.jam so that we can pass multiple python 
> install roots to the init rule.
>
> using python : 2.3 : /usr/local /usr/netpub/python-2.3.5 
> /usr/engsci/python /usr ;
>
> In our case, the location of the correct python depends on which 
> machine we log in to on our Lan.  I'd like to search the install roots 
> in the order passed to init until a valid version is found.  
> Fortunately for us, our Pythons are all the same version, not sure what 
> we'd do if the versions changed based on the system we logged into.  
> The python init rule
>
> rule init ( version ? : root ? : includes ? : libraries ? : 
> cygwin-condition * )
>
> currently permits only a single root.  Is this a reasonable approach or 
> are there better solutions?

A quickie workaround is to simply make up versions for each platform.

  using python : 2.3m : /usr/local ;
  using python : 2.3j : /usr/netpub/python-2.3.5 ;

etc.

If you want this all to be automatic you'd have to write the searching
wrapper on top of the init rule.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com