Re: [boost] [python] patch for python.jam for setting suffix onHP-UX

From: Boris Gubenko (Boris.Gubenko_at_[hidden])
Date: 2007-11-19 12:35:34

Testing of

   [ feature.get-values architecture : $(condition) ] in ia64

on HP-UX ia64 and PA-RISC revealed that it evaluates to TRUE on both 
architectures.

What could be the reason?

Thanks,
  Boris

----- Original Message ----- 
From: "Rene Rivera" <grafikrobot_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Monday, November 19, 2007 10:54 AM
Subject: Re: [boost] [python] patch for python.jam for setting suffix onHP-UX

> David Abrahams wrote:
>> on Mon Nov 19 2007, "Boris Gubenko" <Boris.Gubenko-AT-hp.com> wrote:
>>
>>> Rene Rivera wrote:
>>>> Looking at more of the context of python.jam what you want is to select
>>>> based on the <architecture> feature. Something like:
>>>>
>>>> if ! [ feature.get-values architecture : $(condition) ] in ia64 ||
>>>>    [ feature.get-values python : $(condition) ]
>>>>      in 1.5 1.6 2.0 2.1 2.2 2.3 2.4
>>>> {
>>>>    suffix = sl ;
>>>> }
>>>> else
>>>> {
>>>>    suffix = so ;
>>>> }
>>> I can use '! [ feature.get-values architecture : $(condition) ] in ia64'
>>> or I can use '[ os.platform ] != IA64' (I tested the latter during the
>>> weekend). Which one is preferable?
>>
>> Whichever is appropriate for your use case.  The former represents the
>> target architecture of the compiler and the latter represents the OS
>> that bjam is being run on.  I suspect you want the former.
>
> I guess I wasn't clear... Using "architecture" in this case is preferred
> because it is operating on a build product. To allow for cross-compiles
> it is not advisable to rely on system runtime values like '[ os.platform ]'.
>
>
> -- 
> -- Grafik - Don't Assume Anything
> -- Redshift Software, Inc. - http://redshift-software.com
> -- rrivera/acm.org - grafik/redshift-software.com
> -- 102708583/icq - grafikrobot/aim - grafikrobot/yahoo
> _______________________________________________
> Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
>