Re: [Boost-build] -Op on MSVC-8.0

From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-03-09 04:49:03

On Wednesday 08 March 2006 08:50, Emil Dotchevski wrote:
> I'm using Microsoft (R) 32-bit C/C++ Optimizing Compiler Version
> 14.00.50215.44 for 80x86. I get this warning:
>
> cl : Command line warning D9002 : ignoring unknown option '-Op'
>
> I'm not sure if they removed or renamed this option, but either way I'd
> guess Boost-Build should be modified so it doesn't use it by default.

Did you configure msvc with:

  using msvc : 8.0 ;

That is, specifying explicit version? If yes, the problem should not happen in 
the current CVS.

> I also notice Boost-Build passes /Zm800 every time it launches MSVC, which
> I think could cause problems if someone needs to set this option to another
> value. Why not use the compiler default for stuff that doesn't map to the
> portable built-in Boost-Build <features>? After all, if the users need to
> pass global options to all their files, they can do this in jamroot, no?

I believe that option was present in V1, and so made it's was to V2. I don't 
even know what it does, so can't comment whether it's OK to have it 
hardcoded.

- Volodya