Re: [BBv2] [msvc] VC8.0 cross-compilers and PSDK setups

From: Alexey Pakhunov (alexeypa_at_[hidden])
Date: 2005-10-04 13:25:29

Reece Dunn wrote:
> Great! I understand how this works for VC8, but what about VC7.1 where 
> the user might want to say:
> 
> using msvc : 7.1 ;
> using msvc : 7.1 : $(psdk-vc7-cross-compiler) : <architecture>ia64 ;
> 
> ?

Not really. This is the idea - msvc initialization will remain intact 
while psdk.jam will register additional INCLUDE, LIB and PATH that will 
overload with the settings set by msvc.

> I wasn't referring to platform SDK configuration with vc7.1, but using 
> the ia64/amd64 cross-compilers that can be found on some versions of the 
> SDK where the user might want to say use the x86 compiler for normal 
> builds, but if I am targtting IA64, I want to use the cross-compiler 
> that comes with my PlatformSDK distribution.

amd64/ia64 compiler from PSDK is enabled by adding some PSDK directories 
to PATH. So if the action is something like this:

actions ...
{
$(SETUP)
cl.exe ....
}

$(SETUP) can be a list of commands 'set PATH=...;%PATH%'. These commands 
will setup the environment we need.

> Also, what about the user configuring msvc-6.0/<architecture>arm to use 
> the embedded VC++ compiler?

I don't know yet. I suppose we can set addition flags for 
compiler/linker/assembler tool. Their value will depend on selected 
<architecture> etc. settings.

> Sure. The x86_cex86 cross-compiler is still an issue because it cannot 
> currently be detected without help. The x86_mips compiler can be covered 
> by <architecture>mips*. x86_arm and x86_sh would require new additions 
> to the architecture feature in order to get the condition working.
> 
> x86_cex86 could be supported by adding a cex86 architecture value, like 
> what would be needed for arm and sh, e.g. <architecture>cex86 or 
> <architecture>x86/<instruction-set>cex86.

Sounds like you want to post a patch implementing this. :-)

>>IMO: we can implement this feature but the same functionality can be
>>implemented without it using that same amount of work.
> I don't quite follow. Could you explain?

Sorry, I meant that passing a condition to the init rule can be 
implemented but I don't think it is the best way to solve the problem 
with amd64/ia64 compilers from PSDK.

Best regards/Venlig hilsen,
Alexey Pakhunov.