Re: Conditional including library based on platform

From: jjanzer0 (yahoo_at_[hidden])
Date: 2005-05-19 13:00:22

Thank you very much, that seems like exactly what I need.

--- In jamboost_at_[hidden], "Pedro Ferreira"
<pedro.ferreira_at_m...> wrote:
> 
> ----- Original Message ----- 
> From: "jjanzer0" <yahoo_at_l...>
> To: <jamboost_at_[hidden]>
> Sent: Thursday, May 19, 2005 6:47 PM
> Subject: [jamboost] Re: Conditional including library based on platform
> 
> 
> >I have no problem using whatever it needs to get it done, I'm still
> > learning this system out (I have a lot more experience with GNU's
> > utils) and just having a hard time in general with the documentation.
> > 
> > I think my problem is that I don't really understand how alias will
> > help me, I've read:
> > http://boost.sourceforge.net/boost-build2/doc/html
> > /bbv2/advanced/builtins/targets.html#bbv2.builtins.alias
> > But it's much more of a general overview.
> > 
> > Also from the first example you sent you specified the conditional on
> > toolset, but I don't think that's a good approach considering a
> > windows user might be using the toolset "gcc" instead of something
> > obvious like msvc.
> 
> You can select on whatever condition you see fit, e.g.:
> 
> lib lwsock32 : : <name>wsock32 <os>NT ;
> alias lwsock32 ;
> 
> This will use the lib on Windows and nothing elsewhere.
> 
> Pedro
> 
> 
> > Perhaps the problem could really be solved by reading documentation
> > but I'm having a hard time finding a good set of docs with tutorials
> > examples etc... for V2.
> > 
> > Any suggestions or pointers would be greatly appreciated.
> > 
> > --- In jamboost_at_[hidden], "Pedro Ferreira"
> > <pedro.ferreira_at_m...> wrote:
> >> > Ok I think I'm almost there now... I just have one more question.
> > I
> >> > get an error if lwsock32-name is empty during the call:
> >> > lib lwsock32 : : <name>$(lwsock32-name) ;
> >> > "
> >> > *** argument error
> >> > * rule object(linking-generator)@2.run ( project name ? :
> > property-set
> >> > : sources + : multiple ? )
> >> > * called with: ( Jamfile</home/zeta/code/lanthera/src/client>
> > lwsock32
> >> > : object(property-set)@15 : : )
> >> > * missing argument sources
> >> > "
> >> >
> >> > if i set the condtion that I test for LINUX to any value it
> > compiles
> >> > fine, but I'd prefer not to have any value set... like I want
> > lwsock32
> >> > to really just be NULL, does that make sense?
> >> 
> >> Right... and this is a tricky one: you can't declare a lib that
> > neither has 
> >> a <name> nor sources. That's why I initially proposed to use an
> > alias.
> >> Is there a problem for you to use an alias? We do it here all the
> > time and 
> >> it works really well.
> >> 
> >> Pedro
> > 
> > 
> > 
> > 
> > 
> > Yahoo! Groups Links
> > 
> > 
> > 
> > 
> > 
> >